The Environmental Impact of Traditional vs. Modular Construction
As the planet's population is growing at a rate of over 1% per year, the toll on the environment has been significant. While people are talking about plastic pollution, ozone depletion, and greenhouse gas emissions, hardly everyone understands the substantial impact of traditional construction methods and benefits offered by modular construction.
According to the Environmental Protection Agency (EPA), 569 million tons of C&D debris were generated in the United States in 2017. Other resources suggest that construction is responsible for 23% of air pollution and 40% of the drinking water pollution.
Construction companies from all over the world are struggling to reduce their impact on the environment. One of the most effective methods is using modular construction.
Less Waste, More Output
One of the biggest problems that traditional construction companies face is waste. The rough estimation is that about 30% of the total weight of building materials is wasted at the construction site.
The basic concept behind modular construction (creating building modules off-site and then assembling them on-site) lowers the amount of generated waste tremendously. According to a study done by the Waste & Resources Action Program (WRAP), off-site construction can reduce waste to 1.8%.
For example, a small 25,000 square foot office building produces about 100,000 pounds of waste. If modular construction is used, the amount can be reduced to about 1,800 pounds. The difference is impressive.
Higher Potential for Recycling
Traditionally constructed buildings generate a substantial amount of waste during demolition. According to the EPA, demolition makes up more than 90% of the total construction and development debris generation.
Modular construction offers a possibility of creating relocatable buildings, thus eliminating the need for demolition when they are no longer needed. Meanwhile, permanent modular buildings have a higher potential for recycling as well. They can be reworked for future projects.
Less Noise Pollution
Since the majority of modular building construction is done offsite in controlled factory environments, noise pollution is minimal.
Excessive noise produced at construction sites isn't just annoying and frustrating, it can lead to hearing loss, blood pressure spikes, sleep problems, and extreme stress, not only for on-site workers but neighbors as well. That's why modular construction is highly beneficial for hospitals, schools, and offices.
Less Energy Waste
Since the time spent on-site with modular construction compared to conventional methods is minimized, so is the energy waste. Construction workers spend less time and energy by doing their job in an unchanged setting without any traditional construction site distractions, such as noise or weather. Accordingly, their productivity goes up considerably.
Additionally, constructing modules in a factory-like setting requires the design to be completed in advance. As a result, fewer change orders are entered during the construction process, thus saving time, money, and energy.
Since modular construction doesn't need as much space as conventional construction methods, the adjustments to the surrounding infrastructure are minimal. Accordingly, the process requires less energy.
As a bonus, it's easy to incorporate such energy-efficient options into modules as occupancy sensors for lights, energy-efficient windows, solar panels, and high-efficiency HVAC systems.
Better Construction Quality
Since modular construction is performed in a controlled factory environment, many mistakes can be avoided. One of the biggest integrity hazards in construction is moisture. Using dry materials inside the factory can prevent moisture entrapment, thus saving energy and reducing material waste.
Fewer Transportation Emissions
With heavy machinery and multiple workers going back and forth to the construction site, the transportation emissions for conventional construction are high.
Since with modular construction, the majority of work is done within a factory, the amount of on-site emissions goes down substantially.
Eco-Friendly Materials
Many modular construction companies focus on using eco-friendly building materials, lowering the environmental impact while reducing waste production. In addition, many other companies have become adept at reusing existing materials, such as freight and shipping containers, to create new buildings, further reducing material waste.
Even though the entire construction industry is trying to reduce its impact on the environment, traditional construction methods are having a tough time competing with modular construction. Its ability to cut waste, offer better construction quality, lower transportation emissions, and reduce noise pollution is virtually unbeatable.
More from Modular Advantage
Mind the Gap: The Interface Between Onsite and Offsite Construction
Every design for manufacture and assembly (DfMA) project — modular, mass timber, or panelized — is really two projects joined at a seam. One is built in a controlled factory to millimeter tolerances; the other in the field, in weather, to the looser tolerances of poured concrete and human hands. Between them sits an interface: where the factory’s precision meets the site’s reality.
Rules, Rails & Repeatability: Applying DfMA to Modular Healthcare
DfMA offers several advantages for healthcare projects, with faster delivery among the most valuable. Schedule matters when building new facilities, expanding campuses, renovating existing space or bringing care closer to communities that need it.
Precision and Possibility: Demands of DfMA and What Modular Mass Timber Makes Possible
Mass timber does not automatically create an efficient modular building. Its precision makes early coordination more important: fabricated components will accurately reproduce both the team’s solutions and its mistakes. The material’s advantages are realized only when supported by an equally precise design and delivery process.
Catch It in the Factory, Not in the Field: Smarter Testing for Modular Builds
Integrating watertightness and airtightness testing into factory workflows transforms quality assurance from a reactive process into a proactive commissioning strategy. It ensures that every module shipped is field ready and resilient for transportation while also supporting the ability of the modular construction industry to make buildings better.
Modular Construction Contracts: Key Considerations for Successful Canadian Projects
Starting a modular project with a well-developed contract protects both the owner and the contractor. It will help keep the project on track and on budget, and it will improve quality from the factory floor to final installation on-site.
Modular by Design: Turning Architecture into a Manufacturing System
Modular construction is often presented as a faster way to build. Speed, however, is only one part of its value. The larger opportunity is to create a coordinated design and production system that improves quality, reduces uncertainty, and allows a building to move efficiently from concept design through manufacturing, transportation, installation, and completion.
Repeatability Begins with Trust: What Alora at Dry Creek Reveals About Scaling Modular Housing
Alora at Dry Creek, a 329-unit, multifamily community comprising five four-story buildings in Centennial, Colorado, demonstrates how repeatable design, standardized manufacturing and early collaboration can work together to create a model that is not only faster to deliver, but easier to replicate across future projects.
T.R. Arnold: The Art of Third-Party Inspections
T.R. Arnold (TRA), a third-party inspection company in Elkhart, Indiana, contracts with modular manufacturers across the US. Manufacturers register with each state to which they intend to send their modules and may be required to hire a third-party inspection company.
Creating an ‘Ecosystem for Innovation:’ 50+ Years of Modular Construction Oversight in Virginia
Virginia’s modular building program began in 1973, with the implementation of the Virginia Industrialized Building Unit and Mobile Home Safety Regulations. Now it’s leading the country in modular code adoption.
Understanding Thermal Barriers Compliance Methods & Emerging NFPA-275 Foam Plastic Technologies
New fire barrier technologies are improving total costs and margins in major areas of construction, such as commercial, government, union and prevailing wage projects. These benefits translate into other large fringe areas, such as agriculture, commercial cold storage facilities, grow houses, outbuildings, military and aviation hangars.