Choosing the right kitchen flooring is a big decision. Its the foundation of one of the most-used rooms in the house, so it needs to be durable, easy to clean, and of course, look good. With so many options available, it can be tough to know where to start. This comparative analysis will break down some popular kitchen flooring materials, weighing their pros and cons to help you make the best choice for your needs and budget.
Tile, a classic choice, offers incredible durability and water resistance. Ceramic and porcelain are particularly popular in kitchens, coming in a vast array of styles and colors. From sleek modern designs to rustic farmhouse looks, tile can adapt to any aesthetic. However, tile can be cold underfoot and prone to chipping. Installation can also be more complex and expensive, often requiring professional help.
Vinyl flooring has come a long way in recent years. Luxury vinyl plank (LVP) and luxury vinyl tile (LVT) mimic the look of hardwood and stone at a fraction of the cost. They are water-resistant, durable, and comfortable underfoot. Installation is relatively straightforward, making it a popular DIY project. While vinyl is a great option for many, it isnt as heat-resistant as some other materials and can be susceptible to damage from sharp objects.
Hardwood flooring brings warmth and elegance to any kitchen. Its natural beauty is hard to beat, adding value to your home. Engineered hardwood, in particular, offers better moisture resistance than solid hardwood, making it a more suitable choice for kitchens. However, hardwood requires regular maintenance and can be scratched or dented. It's also a more expensive option.
Laminate flooring is a budget-friendly alternative to hardwood. Its made of layers of composite materials with a photographic layer that mimics the look of wood or stone. Laminate is easy to install and maintain, but its not as water-resistant as vinyl or tile and can be noisy underfoot.
Finally, natural stone, like slate or marble, offers a luxurious and unique look. Its incredibly durable and heat-resistant, but it's also porous and requires regular sealing to prevent staining. Stone is also a more expensive option and can be cold underfoot.
Ultimately, the best kitchen flooring material depends on your individual needs and preferences. Consider your budget, lifestyle, and the overall style of your kitchen when making your decision. Weigh the pros and cons of each material carefully to ensure you choose a floor that will not only look great but also stand up to the demands of daily kitchen life for years to come.
Prepping your subfloor for new kitchen flooring is like building a house – you need a solid foundation. Ignoring this crucial step can lead to a world of headaches, from squeaky floors and cracked tiles to uneven surfaces and premature wear. No matter how beautiful your chosen flooring is, it wont look or perform its best if its laid on a subpar base.
So, where do you start? First, you need to identify your subfloor material. Is it plywood, concrete, or something else? Each material requires a slightly different approach. With plywood, youre looking for a smooth, level surface free of any loose boards or protruding nails. Give it a good once-over, hammering down any raised nails and replacing any damaged sections. For larger dips or bumps, you might need to use a self-leveling compound or patching compound.
Concrete subfloors present their own set of challenges. Cracks, unevenness, and moisture are the main enemies here. Small cracks can often be filled with a concrete patching compound, while larger ones might require professional attention. For leveling, a self-leveling underlayment is your best bet. And crucially, you need to address any moisture issues. A moisture barrier is essential to prevent problems down the road, especially if youre installing moisture-sensitive flooring like hardwood.
Regardless of your subfloor material, cleanliness is key. Sweep or vacuum thoroughly to remove all dust, debris, and loose particles. This will ensure a good bond between the subfloor and your new flooring. Think of it like painting a wall – you wouldnt apply a fresh coat over a dusty surface, right?
Finally, dont forget to check the manufacturers instructions for your specific flooring. They may have specific subfloor requirements or recommendations. Following these guidelines will ensure the best possible results and help you avoid costly mistakes. Taking the time to properly prepare your subfloor is an investment that will pay off in the long run, giving you a beautiful, durable, and trouble-free kitchen floor for years to come.
Choosing the right kitchen flooring is a big decision, but knowing how its installed is just as important. The installation method impacts not only the final look and feel but also the floors longevity and ability to withstand the rigors of kitchen life – spills, dropped dishes, and constant foot traffic. Lets explore some common kitchen flooring installation techniques.
For tile – ceramic, porcelain, or stone – the most common method is thin-set mortar over a cement board underlayment. This provides a stable, waterproof base that prevents cracking and moisture damage. The tiles are carefully laid in the mortar, spaced with spacers for even grout lines, and then grouted to fill the gaps and create a sealed surface. Larger format tiles are becoming increasingly popular, and while the basic technique remains the same, they require extra care to ensure a perfectly level surface. Another emerging trend is using a decoupling membrane under the tile, which allows for slight movement in the subfloor without affecting the tile, further reducing the risk of cracking.
With sheet vinyl and vinyl tile, the installation process is often simpler and faster. For sheet vinyl, the material is typically glued directly to the subfloor, ensuring a secure fit. Vinyl tiles can be glued down as well, or they can be "floating" – clicked together without adhesive – over a suitable underlayment. This floating method is particularly appealing for DIYers because its relatively easy and requires fewer specialized tools. However, proper subfloor preparation is crucial for any vinyl installation to prevent imperfections from showing through and to ensure a smooth, even finish.
Hardwood flooring, while beautiful, requires more consideration in a kitchen due to moisture concerns. Engineered hardwood, which is made of layers of wood with a more stable core, is generally preferred over solid hardwood in kitchens. It can be installed using several methods, including nailing, stapling, or gluing. Floating installations are also possible with engineered hardwood, offering a quicker and less disruptive option. Regardless of the method, acclimating the wood to the kitchens temperature and humidity before installation is essential to prevent warping or buckling later.
Finally, laminate flooring, a cost-effective alternative to hardwood, is typically installed as a floating floor. The planks click together over a foam underlayment, creating a relatively quick and easy installation. Similar to vinyl, proper subfloor preparation is vital for a successful laminate installation.
Understanding these different installation techniques empowers you to make informed decisions about your kitchen flooring. Dont hesitate to discuss the specifics with a qualified installer who can assess your subfloor and recommend the best approach for your chosen material and budget. A properly installed floor is the foundation of a beautiful and functional kitchen, so its worth investing the time and effort to get it right.
So, you’ve got a brand new kitchen floor! Congratulations! Whether it’s gleaming hardwood, sleek tile, or resilient vinyl, you’re probably admiring its fresh, clean look. But like any good thing in life, that pristine appearance requires a little upkeep. Maintaining and cleaning your new kitchen floor properly isnt just about aesthetics; it’s about protecting your investment and extending its lifespan.
The first step is understanding your floor. Different materials have different needs. A sealed hardwood floor, for example, will require a different cleaning routine than a porous natural stone tile. Check with your flooring manufacturer or installer for specific care instructions. They’ll often provide recommendations for cleaning products and techniques. Keep these instructions handy – you’ll be thanking yourself later.
Regular sweeping or vacuuming is crucial for any type of kitchen floor. This removes crumbs, dirt, and grit that can scratch the surface over time. Think of it as preventative maintenance. A quick sweep every day or two can save you from more intensive cleaning down the road. For hardwood floors, use a soft-bristled broom or a vacuum with a hardwood floor attachment. Avoid using beater bars, as they can damage the finish.
When it comes to mopping, less is often more, especially with hardwood. Excess water is the enemy! Use a damp – not soaking wet – mop and a cleaner specifically designed for your flooring type. For tile and vinyl, you can generally use a slightly wetter mop, but still avoid leaving puddles. Always dry the floor thoroughly after mopping to prevent streaks and water damage.
Spills happen, especially in a busy kitchen. The key is to tackle them quickly. Dont let spills sit and soak in. Blot up liquids immediately with a clean cloth or paper towel. For sticky spills, use a damp cloth and the recommended cleaner for your floor type.
Finally, consider using mats or rugs in high-traffic areas and in front of the sink and stove. These can help protect your floor from scratches, spills, and wear and tear. Just make sure the backing is non-slip to prevent accidents.
Taking care of your new kitchen floor doesnt have to be a chore. By following these simple tips and staying on top of regular cleaning, you can keep your floor looking its best for years to come.
Construction is the process involved in delivering buildings, infrastructure, industrial facilities, and associated activities through to the end of their life. It typically starts with planning, financing, and design that continues until the asset is built and ready for use. Construction also covers repairs and maintenance work, any works to expand, extend and improve the asset, and its eventual demolition, dismantling or decommissioning.
The construction industry contributes significantly to many countries' gross domestic products (GDP). Global expenditure on construction activities was about $4 trillion in 2012. In 2022, expenditure on the construction industry exceeded $11 trillion a year, equivalent to about 13 percent of global GDP. This spending was forecasted to rise to around $14.8 trillion in 2030.[1]
The construction industry promotes economic development and brings many non-monetary benefits to many countries, but it is one of the most hazardous industries. For example, about 20% (1,061) of US industry fatalities in 2019 happened in construction.[2]
"Construction" stems from the Latin word constructio (which comes from com- "together" and struere "to pile up") as well as Old French construction.[3] "To construct" is a verb: the act of building. The noun is "construction": how something is built or the nature of its structure.
The first huts and shelters were constructed by hand or with simple tools. As cities grew during the Bronze Age, a class of professional craftsmen, like bricklayers and carpenters, appeared. Occasionally, slaves were used for construction work. In the Middle Ages, the artisan craftsmen were organized into guilds. In the 19th century, steam-powered machinery appeared, and later, diesel- and electric-powered vehicles such as cranes, excavators and bulldozers.
Fast-track construction has been increasingly popular in the 21st century. Some estimates suggest that 40% of construction projects are now fast-track construction.[4]
Broadly, there are three sectors of construction: buildings, infrastructure and industrial:[5]
The industry can also be classified into sectors or markets.[6] For example, Engineering News-Record (ENR), a US-based construction trade magazine, has compiled and reported data about the size of design and construction contractors. In 2014, it split the data into nine market segments: transportation, petroleum, buildings, power, industrial, water, manufacturing, sewage/waste, telecom, hazardous waste, and a tenth category for other projects.[7] ENR used data on transportation, sewage, hazardous waste and water to rank firms as heavy contractors.[8]
The Standard Industrial Classification and the newer North American Industry Classification System classify companies that perform or engage in construction into three subsectors: building construction, heavy and civil engineering construction, and specialty trade contractors. There are also categories for professional services firms (e.g., engineering, architecture, surveying, project management).[9][10]
Building construction is the process of adding structures to areas of land, also known as real property sites. Typically, a project is instigated by or with the owner of the property (who may be an individual or an organisation); occasionally, land may be compulsorily purchased from the owner for public use.[11]
Residential construction may be undertaken by individual land-owners (self-built), by specialist housebuilders, by property developers, by general contractors, or by providers of public or social housing (e.g.: local authorities, housing associations). Where local zoning or planning policies allow, mixed-use developments may comprise both residential and non-residential construction (e.g.: retail, leisure, offices, public buildings, etc.).
Residential construction practices, technologies, and resources must conform to local building authority's regulations and codes of practice. Materials readily available in the area generally dictate the construction materials used (e.g.: brick versus stone versus timber). Costs of construction on a per square meter (or per square foot) basis for houses can vary dramatically based on site conditions, access routes, local regulations, economies of scale (custom-designed homes are often more expensive to build) and the availability of skilled tradespeople.[12]
Depending upon the type of building, non-residential building construction can be procured by a wide range of private and public organisations, including local authorities, educational and religious bodies, transport undertakings, retailers, hoteliers, property developers, financial institutions and other private companies. Most construction in these sectors is undertaken by general contractors.
Civil engineering covers the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, tunnels, airports, water and sewerage systems, pipelines, and railways.[13][14] Some general contractors have expertise in civil engineering; civil engineering contractors are firms dedicated to work in this sector, and may specialise in particular types of infrastructure.
Industrial construction includes offshore construction (mainly of energy installations: oil and gas platforms, wind power), mining and quarrying, refineries, breweries, distilleries and other processing plants, power stations, steel mills, warehouses and factories.
Some construction projects are small renovations or repair jobs, like repainting or fixing leaks, where the owner may act as designer, paymaster and laborer for the entire project. However, more complex or ambitious projects usually require additional multi-disciplinary expertise and manpower, so the owner may commission one or more specialist businesses to undertake detailed planning, design, construction and handover of the work. Often the owner will appoint one business to oversee the project (this may be a designer, a contractor, a construction manager, or other advisors); such specialists are normally appointed for their expertise in project delivery and construction management and will help the owner define the project brief, agree on a budget and schedule, liaise with relevant public authorities, and procure materials and the services of other specialists (the supply chain, comprising subcontractors and materials suppliers). Contracts are agreed for the delivery of services by all businesses, alongside other detailed plans aimed at ensuring legal, timely, on-budget and safe delivery of the specified works.
Design, finance, and legal aspects overlap and interrelate. The design must be not only structurally sound and appropriate for the use and location, but must also be financially possible to build, and legal to use. The financial structure must be adequate to build the design provided and must pay amounts that are legally owed. Legal structures integrate design with other activities and enforce financial and other construction processes.
These processes also affect procurement strategies. Clients may, for example, appoint a business to design the project, after which a competitive process is undertaken to appoint a lead contractor to construct the asset (design–bid–build); they may appoint a business to lead both design and construction (design-build); or they may directly appoint a designer, contractor and specialist subcontractors (construction management).[15] Some forms of procurement emphasize collaborative relationships (partnering, alliancing) between the client, the contractor, and other stakeholders within a construction project, seeking to ameliorate often highly competitive and adversarial industry practices. DfMA (design for manufacture and assembly) approaches also emphasize early collaboration with manufacturers and suppliers regarding products and components.
Construction or refurbishment work in a "live" environment (where residents or businesses remain living in or operating on the site) requires particular care, planning and communication.[16]
When applicable, a proposed construction project must comply with local land-use planning policies including zoning and building code requirements. A project will normally be assessed (by the 'authority having jurisdiction', AHJ, typically the municipality where the project will be located) for its potential impacts on neighbouring properties, and upon existing infrastructure (transportation, social infrastructure, and utilities including water supply, sewerage, electricity, telecommunications, etc.). Data may be gathered through site analysis, site surveys and geotechnical investigations. Construction normally cannot start until planning permission has been granted, and may require preparatory work to ensure relevant infrastructure has been upgraded before building work can commence. Preparatory works will also include surveys of existing utility lines to avoid damage-causing outages and other hazardous situations.
Some legal requirements come from malum in se considerations, or the desire to prevent indisputably bad phenomena, e.g. explosions or bridge collapses. Other legal requirements come from malum prohibitum considerations, or factors that are a matter of custom or expectation, such as isolating businesses from a business district or residences from a residential district. An attorney may seek changes or exemptions in the law that governs the land where the building will be built, either by arguing that a rule is inapplicable (the bridge design will not cause a collapse), or that the custom is no longer needed (acceptance of live-work spaces has grown in the community).[17]
During the construction of a building, a municipal building inspector usually inspects the ongoing work periodically to ensure that construction adheres to the approved plans and the local building code. Once construction is complete, any later changes made to a building or other asset that affect safety, including its use, expansion, structural integrity, and fire protection, usually require municipality approval.
Depending on the type of project, mortgage bankers, accountants, and cost engineers may participate in creating an overall plan for the financial management of a construction project. The presence of the mortgage banker is highly likely, even in relatively small projects since the owner's equity in the property is the most obvious source of funding for a building project. Accountants act to study the expected monetary flow over the life of the project and to monitor the payouts throughout the process. Professionals including cost engineers, estimators and quantity surveyors apply expertise to relate the work and materials involved to a proper valuation.
Financial planning ensures adequate safeguards and contingency plans are in place before the project is started, and ensures that the plan is properly executed over the life of the project. Construction projects can suffer from preventable financial problems.[18] Underbids happen when builders ask for too little money to complete the project. Cash flow problems exist when the present amount of funding cannot cover the current costs for labour and materials; such problems may arise even when the overall budget is adequate, presenting a temporary issue. Cost overruns with government projects have occurred when the contractor identified change orders or project changes that increased costs, which are not subject to competition from other firms as they have already been eliminated from consideration after the initial bid.[19] Fraud is also an issue of growing significance within construction.[20]
Large projects can involve highly complex financial plans and often start with a conceptual cost estimate performed by a building estimator. As portions of a project are completed, they may be sold, supplanting one lender or owner for another, while the logistical requirements of having the right trades and materials available for each stage of the building construction project carry forward. Public–private partnerships (PPPs) or private finance initiatives (PFIs) may also be used to help deliver major projects. According to McKinsey in 2019, the "vast majority of large construction projects go over budget and take 20% longer than expected".[21]
A construction project is a complex net of construction contracts and other legal obligations, each of which all parties must carefully consider. A contract is the exchange of a set of obligations between two or more parties, and provides structures to manage issues. For example, construction delays can be costly, so construction contracts set out clear expectations and clear paths to manage delays. Poorly drafted contracts can lead to confusion and costly disputes.
At the start of a project, legal advisors seek to identify ambiguities and other potential sources of trouble in the contract structures, and to present options for preventing problems. During projects, they work to avoid and resolve conflicts that arise. In each case, the lawyer facilitates an exchange of obligations that matches the reality of the project.
Design-bid-build is the most common and well-established method of construction procurement. In this arrangement, the architect, engineer or builder acts for the client as the project coordinator. They design the works, prepare specifications and design deliverables (models, drawings, etc.), administer the contract, tender the works, and manage the works from inception to completion. In parallel, there are direct contractual links between the client and the main contractor, who, in turn, has direct contractual relationships with subcontractors. The arrangement continues until the project is ready for handover.
Design-build became more common from the late 20th century, and involves the client contracting a single entity to provide design and construction. In some cases, the design-build package can also include finding the site, arranging funding and applying for all necessary statutory consents. Typically, the client invites several Design & Build (D&B) contractors to submit proposals to meet the project brief and then selects a preferred supplier. Often this will be a consortium involving a design firm and a contractor (sometimes more than one of each). In the United States, departments of transportation usually use design-build contracts as a way of progressing projects where states lack the skills or resources, particularly for very large projects.[22]
In a construction management arrangement, the client enters into separate contracts with the designer (architect or engineer), a construction manager, and individual trade contractors. The client takes on the contractual role, while the construction or project manager provides the active role of managing the separate trade contracts, and ensuring that they complete all work smoothly and effectively together. This approach is often used to speed up procurement processes, to allow the client greater flexibility in design variation throughout the contract, to enable the appointment of individual work contractors, to separate contractual responsibility on each individual throughout the contract, and to provide greater client control.
In the industrialized world, construction usually involves the translation of designs into reality. Most commonly (i.e.: in a design-bid-build project), the design team is employed by (i.e. in contract with) the property owner. Depending upon the type of project, a design team may include architects, civil engineers, mechanical engineers, electrical engineers, structural engineers, fire protection engineers, planning consultants, architectural consultants, and archaeological consultants. A 'lead designer' will normally be identified to help coordinate different disciplinary inputs to the overall design. This may be aided by integration of previously separate disciplines (often undertaken by separate firms) into multi-disciplinary firms with experts from all related fields,[23] or by firms establishing relationships to support design-build processes.
The increasing complexity of construction projects creates the need for design professionals trained in all phases of a project's life-cycle and develop an appreciation of the asset as an advanced technological system requiring close integration of many sub-systems and their individual components, including sustainability. For buildings, building engineering is an emerging discipline that attempts to meet this new challenge.
Traditionally, design has involved the production of sketches, architectural and engineering drawings, and specifications. Until the late 20th century, drawings were largely hand-drafted; adoption of computer-aided design (CAD) technologies then improved design productivity, while the 21st-century introduction of building information modeling (BIM) processes has involved the use of computer-generated models that can be used in their own right or to generate drawings and other visualisations as well as capturing non-geometric data about building components and systems.
On some projects, work on-site will not start until design work is largely complete; on others, some design work may be undertaken concurrently with the early stages of on-site activity (for example, work on a building's foundations may commence while designers are still working on the detailed designs of the building's internal spaces). Some projects may include elements that are designed for off-site construction (see also prefabrication and modular building) and are then delivered to the site ready for erection, installation or assembly.
Once contractors and other relevant professionals have been appointed and designs are sufficiently advanced, work may commence on the project site. Some projects require preliminary works, such as land preparation and levelling, demolition of existing structures (see below), or laying foundations, and there are circumstances where this work may be contracted for in advance of finalising the contract and costs for the whole project.
Typically, a construction site will include a secure perimeter to restrict unauthorised access, site access control points, office and welfare accommodation for personnel from the main contractor and other firms involved in the project team, and storage areas for materials, machinery and equipment. According to the McGraw-Hill Dictionary of Architecture and Construction's definition, construction may be said to have started when the first feature of the permanent structure has been put in place, such as pile driving, or the pouring of slabs or footings.[24]
Commissioning is the process of verifying that all subsystems of a new building (or other assets) work as intended to achieve the owner's project requirements and as designed by the project's architects and engineers.
A period after handover (or practical completion) during which the owner may identify any shortcomings in relation to the building specification ('defects'), with a view to the contractor correcting the defect.[25]
Maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, governmental, and residential installations.[26][27]
Demolition is the discipline of safely and efficiently tearing down buildings and other artificial structures. Demolition contrasts with deconstruction, which involves taking a building apart while carefully preserving valuable elements for reuse purposes (recycling – see also circular economy).
The output of the global construction industry was worth an estimated $10.8 trillion in 2017, and in 2018 was forecast to rise to $12.9 trillion by 2022,[28] and to around $14.8 trillion in 2030.[1] As a sector, construction accounts for more than 10% of global GDP (in developed countries, construction comprises 6–9% of GDP),[29] and employs around 7% of the total employed workforce around the globe[30] (accounting for over 273 million full- and part-time jobs in 2014).[31] Since 2010,[32] China has been the world's largest single construction market.[33] The United States is the second largest construction market with a 2018 output of $1.581 trillion.[34]
Construction is a major source of employment in most countries; high reliance on small businesses, and under-representation of women are common traits. For example:
According to McKinsey research, productivity growth per worker in construction has lagged behind many other industries across different countries including in the United States and in European countries. In the United States, construction productivity per worker has declined by half since the 1960s.[59]
The twenty-five largest countries in the world by construction GVA (2018)[60]
Some workers may be engaged in manual labour[61] as unskilled or semi-skilled workers; they may be skilled tradespeople; or they may be supervisory or managerial personnel. Under safety legislation in the United Kingdom, for example, construction workers are defined as people "who work for or under the control of a contractor on a construction site";[62] in Canada, this can include people whose work includes ensuring conformance with building codes and regulations, and those who supervise other workers.[63]
Laborers comprise a large grouping in most national construction industries. In the United States, for example, in May 2023, the construction sector employed just over 7.9 million people, of whom 859,000 were laborers, while 3.7 million were construction trades workers (including 603,000 carpenters, 559,000 electricians, 385,000 plumbers, and 321,000 equipment operators).[64] Like most business sectors, there is also substantial white-collar employment in construction - out of 7.9 million US construction sector workers, 681,000 were recorded by the United States Department of Labor in May 2023 as in 'office and administrative support occupations', 620,000 in 'management occupations' and 480,000 in 'business and financial operations occupations'.[64]
Large-scale construction requires collaboration across multiple disciplines. A project manager normally manages the budget on the job, and a construction manager, design engineer, construction engineer or architect supervises it. Those involved with the design and execution must consider zoning requirements and legal issues, environmental impact of the project, scheduling, budgeting and bidding, construction site safety, availability and transportation of building materials, logistics, and inconvenience to the public, including those caused by construction delays.
Some models and policy-making organisations promote the engagement of local labour in construction projects as a means of tackling social exclusion and addressing skill shortages. In the UK, the Joseph Rowntree Foundation reported in 2000 on 25 projects which had aimed to offer training and employment opportunities for locally based school leavers and unemployed people.[65] The Foundation published "a good practice resource book" in this regard at the same time.[66] Use of local labour and local materials were specified for the construction of the Danish Storebaelt bridge, but there were legal issues which were challenged in court and addressed by the European Court of Justice in 1993. The court held that a contract condition requiring use of local labour and local materials was incompatible with EU treaty principles.[67] Later UK guidance noted that social and employment clauses, where used, must be compatible with relevant EU regulation.[68] Employment of local labour was identified as one of several social issues which could potentially be incorporated in a sustainable procurement approach, although the interdepartmental Sustainable Procurement Group recognised that "there is far less scope to incorporate [such] social issues in public procurement than is the case with environmental issues".[69]
There are many routes to the different careers within the construction industry. There are three main tiers of construction workers based on educational background and training, which vary by country:
Unskilled and semi-skilled workers provide general site labor, often have few or no construction qualifications, and may receive basic site training.
Skilled tradespeople have typically served apprenticeships (sometimes in labor unions) or received technical training; this group also includes on-site managers who possess extensive knowledge and experience in their craft or profession. Skilled manual occupations include carpenters, electricians, plumbers, ironworkers, heavy equipment operators and masons, as well as those involved in project management. In the UK these require further education qualifications, often in vocational subject areas, undertaken either directly after completing compulsory education or through "on the job" apprenticeships.[70]
Professional, technical and managerial personnel often have higher education qualifications, usually graduate degrees, and are trained to design and manage construction processes. These roles require more training as they demand greater technical knowledge, and involve more legal responsibility. Example roles (and qualification routes) include:
Construction is one of the most dangerous occupations in the world, incurring more occupational fatalities than any other sector in both the United States and in the European Union.[2][71] In the US in 2019, 1,061, or about 20%, of worker fatalities in private industry occurred in construction.[2] In 2017, more than a third of US construction fatalities (366 out of 971 total fatalities) were the result of falls;[72] in the UK, half of the average 36 fatalities per annum over a five-year period to 2021 were attributed to falls from height.[73] Proper safety equipment such as harnesses, hard hats and guardrails and procedures such as securing ladders and inspecting scaffolding can curtail the risk of occupational injuries in the construction industry.[74] Other major causes of fatalities in the construction industry include electrocution, transportation accidents, and trench cave-ins.[75]
Other safety risks for workers in construction include hearing loss due to high noise exposure, musculoskeletal injury, chemical exposure, and high levels of stress.[76] Besides that, the high turnover of workers in construction industry imposes a huge challenge of accomplishing the restructuring of work practices in individual workplaces or with individual workers.[citation needed] Construction has been identified by the National Institute for Occupational Safety and Health (NIOSH) as a priority industry sector in the National Occupational Research Agenda (NORA) to identify and provide intervention strategies regarding occupational health and safety issues.[77][78] A study conducted in 2022 found “significant effect of air pollution exposure on construction-related injuries and fatalities”, especially with the exposure of nitrogen dioxide.[79]
Sustainability is an aspect of "green building", defined by the United States Environmental Protection Agency (EPA) as "the practice of creating structures and using processes that are environmentally responsible and resource-efficient throughout a building's life-cycle from siting to design, construction, operation, maintenance, renovation and deconstruction."[80]
The construction industry may require transformation at pace and at scale if it is to successfully contribute to achieving the target set out in The Paris Agreement of limiting global temperature rise to 1.5C above industrial levels.[81][82] The World Green Building Council has stated the buildings and infrastructure around the world can reach 40% less embodied carbon emissions but that this can only be achieved through urgent transformation.[83][84]
Conclusions from industry leaders have suggested that the net zero transformation is likely to be challenging for the construction industry, but it does present an opportunity. Action is demanded from governments, standards bodies, the construction sector, and the engineering profession to meet the decarbonising targets.[85]
In 2021, the National Engineering Policy Centre published its report Decarbonising Construction: Building a new net zero industry,[85] which outlined key areas to decarbonise the construction sector and the wider built environment. This report set out around 20 different recommendations to transform and decarbonise the construction sector, including recommendations for engineers, the construction industry and decision makers, plus outlined six-overarching ‘system levers’ where action taken now will result in rapid decarbonisation of the construction sector.[85] These levels are:
Progress is being made internationally to decarbonise the sector including improvements to sustainable procurement practice such as the CO2 performance ladder in the Netherlands and the Danish Partnership for Green Public Procurement.[86][87] There are also now demonstrations of applying the principles of circular economy practices in practice such as Circl, ABN AMRO's sustainable pavilion and the Brighton Waste House.[88][89][90]
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All actions which have the objective of retaining or restoring an item in or to a state in which it can perform its required function. These include the combination of all technical and corresponding administrative, managerial, and supervision actions.
A contractor[1][2] (North American English) or builder (British English),[3][4] is responsible for the day-to-day oversight of a construction site, management of vendors and trades, and the communication of information to all involved parties throughout the course of a building project.[5]
In the United States, a contractor may be a sole proprietor managing a project and performing labor or carpentry work, have a small staff, or may be a very large company managing billion dollar projects. Some builders build new homes, some are remodelers, some are developers.[6]
A general contractor is a construction manager employed by a client, usually upon the advice of the project's architect or engineer.[7] General Contractors are mainly responsible for the overall coordination of a project and may also act as building designer and construction foreman (a tradesman in charge of a crew).
A general contractor must first assess the project-specific documents (referred to as a bid, proposal, or tender documents). In the case of renovations, a site visit is required to get a better understanding of the project. Depending on the project delivery method, the general contractor will submit a fixed price proposal or bid, cost-plus price or an estimate. The general contractor considers the cost of home office overhead, general conditions, materials, and equipment, as well as the cost of labor, to provide the owner with a price for the project.
Contract documents may include drawings, project manuals (including general, supplementary, or special conditions and specifications), and addendum or modifications issued prior to proposal/bidding and prepared by a design professional, such as an architect.The general contractor may also assume the role of construction manager, responsible for overseeing the project while assuming financial and legal risks.There are several types of risks can occur include cost overruns, delays, and liabilities related to safety or contract breaches.
Prior to formal appointment, the selected general contractor to whom a client proposes to award a contract is often referred to as a "preferred contractor".[8]
A general contractor is responsible for providing all of the material, labor, equipment (such as heavy equipment and tools) and services necessary for the construction of the project. A general contractor often hires specialized subcontractors to perform all or portions of the construction work. When using subcontractors, the general contractor is responsible for overseeing the quality of all work performed by any and all of the workers and subcontractors.
It is a best practice for general contractors to prioritize safety on the job site, and they are generally responsible for ensuring that work takes place following safe practices.
A general contractor's responsibilities may include applying for building permits, advising the person they are hired by, securing the property, providing temporary utilities on site, managing personnel on site, providing site surveying and engineering, disposing or recycling of construction waste, monitoring schedules and cash flows, and maintaining accurate records.[9]
The general contractor may be responsible for some part of the design, referred to as the "contractor's design portion" (JCT terminology).[10]
In the United Kingdom, Australia and some British Commonwealth countries, the term 'general contractor' was gradually superseded by builders during the early twentieth century.[citation needed] This was the term used by major professional, trade, and consumer organizations when issuing contracts for construction work, and thus the term 'general contractor' fell out of use except in large organizations where the main contractor is the top manager and a general contractor shares responsibilities with professional contractors.
General contractors who conduct work for government agencies are often referred to as "builders". This term is also used in contexts where the customer's immediate general contractor is permitted to sub-contract or circumstances are likely to involve sub-contracting to specialist operators e.g. in various public services.
In the United States and Asia, the terms general contractor (or simply "contractor"), prime contractor and main contractor are often interchangeable when referring to small local companies that perform residential work. These companies are represented by trade organizations such as the NAHB.[11]
Licensing requirements to work legally on construction projects vary from locale to locale. In the United States, there are no federal licensing requirements to become a general contractor, but most US states require general contractors to obtain a local license to operate. It is the states' responsibility to define these requirements: for example, in the state of California, the requirements are stated as follows:
With a few exceptions, all businesses or individuals who work on any building, highway, road, parking facility, railroad, excavation, or other structure in California must be licensed by the California Contractors State License Board (CSLB) if the total cost of one or more contracts on the project is $500 or more.
In every state that requires a license, a surety bond is required as part of the licensing process, with the exception of Louisiana, where bonding requirements may vary in different parishes. Not all states require General Contractor licenses - these include Vermont, New Hampshire and Maine, among others.
Some general contractors obtain bachelor's degrees in construction science, building science, surveying, construction safety, or other disciplines.
General Contractors often learn about different aspects of construction, including masonry, carpentry, framing, and plumbing. Aspiring general contractors communicate with subcontractors and may learn the management skills they need to run their own company.
Experience in the construction industry as well as references from customers, business partners, or former employers are demanded. Some jurisdictions require candidates to provide proof of financing to own their own general contracting firm.
General Contractors often run their own business. They hire subcontractors to complete specialized construction work and may manage a team of plumbers, electricians, bricklayers, carpenters, iron workers, technicians, handymans, architects and roofers. General Contractors build their business by networking with potential clients, buying basic construction tools, and ensuring that their subcontractors complete high-quality work. General Contractors do not usually complete much construction work themselves, but they need to be familiar with construction techniques so they can manage workers effectively. Other reasons include access to specialist skills, flexible hiring and firing, and lower costs.
A property owner or real estate developer develops a program of their needs and selects a site (often with an architect). The architect assembles a design team of consulting engineers and other experts to design the building and specify the building systems. Today contractors frequently participate on the design team by providing pre-design services such as providing estimations of the budget and scheduling requirements to improve the economy of the project. In other cases, the general contractor is hired at the close of the design phase. The owner, architect, and general contractor work closely together to meet deadlines and budget. The general contractor works with subcontractors to ensure quality standards; subcontractors specialise in areas such as electrical wiring, plumbing, masonry, etc.
Renovation (also called remodeling) is the process of improving broken, damaged, or outdated structures. Renovations are typically done on either commercial or residential buildings. Additionally, renovation can refer to making something new, or bringing something back to life and can apply in social contexts. For example, a community can be renovated if it is strengthened and revived. It can also be restoring something to a former better state (as by cleaning, repairing, or rebuilding). Renovation is a widespread practice in many regions, often driven by safety upgrades, energy efficiency improvements, and aesthetic preferences.. For example, there are more than twenty thousand home improvement projects every year in Hong Kong, affecting more than a million residents[1] (population of HK is around 7.5 million in 2023).[2]
The building renovation process can usually, depending on the extents of the renovation, be broken down into several phases. The phases are as follow.[3]
Projects involving renovation require not just flexibility, but a plan that had been agreed upon by multiple parties. The planning process will involve feedback from financial investors of the project, and from the designer. Part of planning will also entail the collection of data for the completion of the project and then the project plan will be revised and given consent before continuing with renovations.[6]
Technology has had a meaningful effect on the renovation process, increasing the significance and strength of the planning stage. The availability of free online design tools has improved visualization of the changes, at a fraction of the cost of hiring a professional designer. The decision regarding changes is also influenced by the purpose of basement renovation [1]. Depending on the significance of these changes a professional may be required, especially if any changes other than cosmetic work (paint or finishes) is required. Many local codes require a professional to complete work in the built environment such as structural changes, new walls, new plumbing, or many others. Doing these changes without hiring a professional can result in health effects, safety concerns, damages, fines, and increased cost due to having to hire a professional after self-work.[7] Most builders focus on building new homes, so renovating is typically a part-time activity for such tradespeople. The processes and services required for renovations are quite specific and, once plans are signed off, building a new home is relatively predictable. However, during renovation projects, flexibility is often required from renovation companies to respond to unexpected issues that arise. Renovations usually require all of the sub-trades that are needed for the construction of a new building.
In case of a so-called "fix-and-flip" (repair and resell) objective, an ROI (return on investment) can result from changes to fix a structural issue, to fix design flow yield,[8] or to use light and color to make rooms appear more spacious. Because interior renovation could change of the internal structure of the house, ceiling construction, circuit configuration and partition walls, etc., such work related to the structure of the house, of course, also includes renovation of wallpaper posting, furniture settings, lighting, etc often times an interior designer is required as well.[9]
Many people renovate homes to create a new appearance. Builders may renovate homes to enhance the home's value as a stable source of income.[11] Homeowners often renovate their homes to increase the re-sale value and to turn a profit when selling. Homeowners may also want to add renovations that make their home more energy efficient, green or sustainable.[12] Also, over time, a homeowner's personal preferences and needs may change, and the home will be renovated for improved aesthetics, comfort, or functionality.
Other types of renovations also can be initiated for similar reasons. The user or owner of a building can change which can effect the needs or wants for the space prompting a renovation. This is becoming more popular as buildings owners are renting or leasing floors or sections of the buildings to companies which have different spacial requirements than the previous users causing needed renovation. Renovations can also occur as companies increase size which could lead to needed additional retail, office, or other types of spaces. Similarly to homes other building owners could also want renovations to increased value, make the building more energy efficient, green or sustainable, or to update the building.[13] Sometimes shopping centres or shops are renovated to raise rent later.
Wood is considered a versatile and adaptable construction material, often preferred in renovations due to its ease of modification and availability. Few homeowners or professional remodelers possess the skill and equipment that is required to alter steel-frame or concrete structures.
When looking at embodied carbon in building materials wood is often labeled as the most sustainable. This is because it sequesters carbon which if certified sustainably sourced will significantly reduce embodied carbon of buildings. This makes it a low emitting choice for a building material for an overall building and for renovations.[14]
Forest certification verifies that wood products have been sourced from well-managed forests. Most certification programs provide online search options so that consumers can find certified products—the Certification Canada program includes a search option for all of the certification programs that are in use in Canada.[15]
In North America, most structures are demolished because of external forces such as zoning changes and rising land values. Additionally, buildings that cannot be modified to serve the functional needs of the occupants are subject to demolition. Very few buildings on the continent are demolished due to structural degradation.[16]
The Athena Institute surveyed 227 commercial and residential buildings that were demolished in St. Paul, Minnesota, between 2000 and mid-2003. Thirty percent of the buildings were less than 50 years old, and 6% were less than 25 years old. The four top reasons for demolition were "area redevelopment" (35%), "building's physical condition" (31%), "not suitable for anticipated use" (22%), and "fire damage" (7%). Lack of maintenance was cited as the specific problem for 54 of the 70 buildings where physical condition was given as the reason for demolition.[16]
Plastics are extensively used in the construction and renovation industry.[17] Airborne microplastic dust is produced during renovation, building, bridge and road reconstruction projects[18] and the use of power tools.[19] It is also generated by deterioration of building materials[20]
Materials containing polyvinyl chloride (PVC), polycarbonate, polypropylene, and acrylic, can degrade overtime releasing microplastics.[17] During the construction process single use plastic containers and wrappers are discarded adding to plastic waste.[21] These plastics are difficult to recycle and end up in landfills where they break down over a long period of time causing potential leaching into the soil and the release of airborne microplastics.[22][23] Efforts have been made to reduce plastic waste by adding it to concrete as agglomerates. However, one solution for resolving the problem from the large amount of plastic wastes generated could bring another serious problem of leaching of microplastics. The unknown part of this area is huge and needs prompt investigation.[24]
The construction industry is one of the largest consumers of plastic materials, utilizing approximately 20% of all plastics produced annually. It also accounts for around 70% of global polyvinyl chloride (PVC) consumption, primarily in applications such as piping, window frames, flooring, and insulation.[25][26] It is predicted that much more will be produced and used in the future.[25] "In Europe, approximately 20% of all plastics produced are used in the construction sector including different classes of plastics, waste and nanomaterials."[26]
While the type of material used will determine the composition of the dust generated, the size and amount of particulates produced are mainly determined by the type of tool used. Implementation of effective dust control measures may also play a role.
Use of angle grinder is not preferred as large amounts of harmful sparks and fumes (and particulates) are generated when compared with using reciprocating saw or band saw.[27] Angle grinders produce sparks when cutting ferrous metals. They also produce shards cutting other materials. The blades themselves may also break. This is a great hazard to the face and eyes especially, as well as other parts of the body.[28]
Use of power tools can cause adverse effects on people living nearby. Power tools can produce large amounts of particulates including ultrafine particles.[29]
Particulates are the most harmful form (other than ultra-fines) of air pollution[30] There is no safe level of particulates.[31]
Many tasks create dust. High dust levels are caused by one of more the following:[32]
Examples of high dust level tasks include:[32]
Some power tools are equipped with dust collection system (e.g. HEPA vacuum cleaner) or integrated water delivery system which extract the dust after emission.[33][34]
In the US, “About 75% of homes built before 1978 contain some lead-based paint. The older the home the more likely it is to contain lead-based paint. You should assume that any home built before 1978 contains some lead.”[35]
In April 2010 the U.S. Environmental Protection Agency (EPA) required that all renovators working in homes built before 1978 and disturbing more than 6 square feet (0.56 m2) of lead paint inside the home or 20 square feet (1.9 m2) outside the home be certified. EPA's Lead Renovation, Repair and Painting Rule (RRP Rule) lowers the risk of lead contamination from home renovation activities.[36] It requires that firms performing renovation, repair, and painting projects that disturb lead-based paint in homes, child care facilities and pre-schools (any child occupied facility) built before 1978 be certified by EPA and use certified renovators who are trained by EPA-approved training providers to follow lead-safe work practices.[37]
Careful stabilization of any deteriorated (peeling, chipping, cracking, etc.) paint in a lead-safe manner is also encouraged. Through authority vested in the United States Department of Housing and Urban Development (HUD), lead-based-paint removal by dry scraping, dry sanding, torching and burning, the use of heat guns over 1100°F, and machine-sanding / grinding without a HEPA-filtered vacuum or a HEPA filtered dust collection system, is prohibited, as these methods have been proven to produce significant amount of lead dust during renovation, remodeling and painting.[38]
At the end of any remodeling or repainting job, a dust test performed by an independent third-party professional is also required by HUD for "clearance". Lead evaluations are done using a method called X-Ray fluorescence (XRF), which gives a result in 4–8 seconds with a 95% accuracy at the 2-sigma level.
As of 2018[update], there are an estimated 37 million homes and apartments with lead paint in the United States.[39]
Currently, worldwide 38% of emissions and 35% of energy use come from the building sector, including building construction and operation. This means renovations contribute to emissions and energy use of the building sector. These percentages are the largest portion of the total emissions and energy use globally.[40] This makes buildings have the highest potential for decreasing these percentages as well as the largest need to decrease them. Renovations are also one way to do this.
Renovations decrease emissions as instead of demolishing a building just to build a new one the building is reused. Reuse of buildings is not always desirable as it is often pursued to have a building designed for the many individual and unique needs building owners have but it is not always a necessity. Renovations can take a building and make it completely different from the old building just reusing the structure, which is often the largest contributor of embodied carbon to a building. However, in order to be able to do this buildings need to be design durably and re-use. Designing for durability and reuse is designing for new buildings to be "long lasting, use-adaptable, and culturally valuable"[14] to allow for the building to be kept for longer to minimize emissions from a complete rebuild.
Having these ideas in mind while designing new buildings significantly increases the likelihood for renovations to happen.[14] Buildings are more likely to be torn down because they can not accommodate the new desired use then because the structure is failing.[16] Renovations allow old buildings to fit new needs in a way that outputs less emissions than a complete tear down and construction of a new building which is often a feasible option.
Renovation has several effects on economies, including:[41]