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New design and construction approaches are changing modular construction’s previously bad reputation for limiting architect’s design creativity. When done thoughtfully—through early collaboration with fabricators—architects can create unique designs that address a range of client needs with modular construction.

The most common asked questions

What is a modular prefabricated construction process?

This is a process that constructs a building off-site under controlled plant conditions, using the same materials and designed to the same codes and standards as conventionally built facilities. Buildings are produced in 3D "modules" that when put together on-site, reflect the identical design intent and specifications of the most sophisticated traditionally built facility.

How the modular units become one building?

Once the modules are ready, they are shipped to the site and fastened together. Module installation includes line connections for mechanical and electrical systems, exterior and interior finishes, where applicable. The final construction stage includes completing exterior systems such as cladding and roofing components and internal spaces like lobbies, stairwells, and elevator shafts.

How the manufacturing plants are inspected?

Manufacturing plants have stringent QA/QC programs with independent inspections and testing protocols that promote superior quality of construction at every step of the way.

Is the modular construction activity similar to traditional construction?

In comparison to traditional construction activity, the modular construction removes approximately 90% of the building construction activity from the site location, significantly reduces site disruption, vehicular traffic and improves overall safety and security.

What are the stages of modular construction techniques?

Modular construction techniques are analogous to assembly-line car manufacturing. Typically, four stages make up a modular construction project. First, design development by the developer and plan approval by any regulating authorities; second, assembly of module components in the factory; third, transportation of modules to the project site; and fourth, erection of modular units to form the building.

Which kind of buildings are possible to build using the modular construction technology?

In fact, all type of building which can be built by conventional construction methods can also be built by the modular system: schools, hospitals, hotels, apartments, shops and more are possible to built using modular technology.

Is there any difference in design process between traditional and modular buildings?

The off-site modular construction requires more coordination during the design/ construction processes and forces developers to make decisions earlier. 

How the cladding of modular building looks like?

Modular construction facades have no difference from traditional construction and use absolutely the same cladding materials used in traditional construction.

What further tasks are needed to complete on-site, once the modules arrive on site?

Modular construction requires the lifting and positioning of each of the modules by the prearranges sequence site assembly plan. Main infrastructures supplies are connected to each module and interface lines in between modules are connected and sealed, we execute a test to make sure that the onsite works have brought the assembled modules to be one integrated complete structure.

What internal building materials are used in modular construction?

Modular construction uses absolutely the same materials used in conventional construction.

How do you protect the modules from damage during the onsite lifting?  

Design and production consider the additional loads on our modules that may be applied during lifting and transportation and additional temporary or permanent reinforcement bars are added at specific location in order to absorb that extra loading and keep the modular building protected.

Are modular constructions as sturdy as traditionally constructed buildings? 

Yes. Modular buildings meet and often exceed the same building and fire safety codes as traditionally constructed buildings. In fact, modules are built to withstand transportation from the factory to the site and have additional reinforcement.

What kind of roof modular building may have?  

Modular construction uses absolutely the same shapes of the roof used in traditional construction. These roofs can be designed as an integral part of the modules or as a separate one. 

What is the difference between modular and prefabricated buildings?

There is no difference. "Modular buildings", "prefabricated buildings" and "pre-engineered structures" are all terms for buildings manufactured off-site in a factory-controlled environment that are then installed on-site once the site works are completed.

Is there a height limitation with modular building?

No. We can build a one floor structure up to multi stories complex. The size and configuration of modern modular buildings is virtually unlimited.

Is noise reduction insulation available?

Yes. We are experienced in providing modular building solutions for high-noise health care use, apartments, hotels settings and educational facilities.

Is it possible to expand or to move the modular building?

Yes. The modular building is extendable and relocatable. If you anticipate the future expansion, or possibly moving to a new site, both tasks can be further accommodated by our design team if you discuss this with us at the outset. Virtually all modular buildings can be relocated. Some installation methods are more suitable for disassembly and relocation. If you know that the building will be relocated, work with your CERM-EX representative to choose the best installation method.

What if the building has been designed for traditional construction methods?

Our structural engineers can ‘modularise’ any existing plans and will assist the architect in producing the correct building drawings following the needs of the client and addressing the modular construction rules. 

Are the modules designed to withstand seismic forces?

Of course, as in conventional construction, we must address all regulations and the specific location seismic parameters are included in our computerized model calculation to guaranty full durability.

Does the modular design limits architectural design?

The modular design has always created in client's minds, like rectangular boarding structures without any architectural creativity. Indeed, the modular technology is based on module units, normally rectangle in their shape, which are connected one to the other to create the complete structure. The design flexibility which exist in concrete structures cannot achieved easily in the PMCT buildings. The most that can be achieved is a combination of architectural concert/other materials exterior decorative elements that in combination with the modules can shape more interesting building typologies.

What are the dimension limitations of your modules?

The size of the module depends on project specific and logistic plan. Our team is offering a variety of sizes and heights to address the client’s needs. Any bigger dimension can be supplied easily, as a smart combination of the basic modules!

What is stitch and seam?

The "Stitch & Seam" refers to the balance of the work required to complete the home after it is set on the foundation. This work is generally comprised of and covered by the following seven categories: 


  • Interior & Exterior Connections

  • Interior Seam & Finish

  • Plumbing

  • Electrical

  • HVAC

  • Siding

  • Roofing

I’m having trouble finding a flat piece of land. How can CERM-EX help?

A New Home Consultant may be able to connect you with a real estate agent depending on your area. Talk with your New Home Consultant to learn more about factors that go into finding a lot, and remember, Teardowns are also a great option in addition to raw land. A helpful site to look for land is

What are the benefits of a teardown?

A teardown is a great way to acquire a great piece of land in an existing neighborhood. Once the existing home is demolished, you are left with a more even building surface, utilities to hook up to and an existing driveway, considering it is still in good condition. This could save you time and money on your overall site work compared to starting with a raw piece of land. Teardown prices average $10/sqft.

Will CERM-EX build on my raw land?

Yes! We are highly experienced with building on raw, undeveloped land.

How “Green” is a CERM-EX Modular Home?

At CERM-EX, we pride ourselves in building a healthy home and have gone the extra mile to include “green” features throughout the home. From insulation and framing, to low flowing fixtures that save on the cost of water. Our hardwood floors help protect your home against allergens and mold. Every CERM-EX Home is designed to maximize natural light and overall circulation of airflow.


Additionally, CERM-EX homes come Net Zero ready and are some of the most energy efficient homes available on the planet!

How long does it take?

There are two time frames to consider: “pre-permit” and “post permit”.

PRE-PERMIT: CERM-EX does not control the pre permitting time frame, which includes design, engineering, and local government approval – including “design review” in some locations. This can be as fast as 3 months and as long as 12 months, depending on your municipality.

POST-PERMIT – 10 Weeks

8 weeks to build in the factory
1 day to set the home
2 days - 3 weeks to finish on site

Also, it is good to keep in mind that the building in the factory can happen at the same time your site work is being done. This allows for the boxes to show up and be set on the foundation the day after the concrete has cured.

In the Western US, new custom home building timeframes can average from 10 to 13 months after receiving building permits. Our optimized design and factory built process allows for projects to be completed in 2-3 months post building permit!

When should I start my project?

We know timing is everything and would be excited to start working with you once your building timeframe reaches 2 years or less! The great thing about CERM-EX, is that our process moves fast- but putting the pedal to the metal too soon is not our preferred style.

I have a great piece of land, but now need to consider a budget, how does CERM-EX help?

We know that setting expectations for budget means everything! That is why we designed our Quick Quote tool. Within this tool you'll be able to categorize the site condition of your land, choose you home model, add any additional features and gain a estimated price range! This is extremely helpful for understanding cost upfront and setting expectations for your own budget. This is also great if you don't have land and are considering a lot that you have not yet purchased. But the best way to get a true cost and timeline breakdown would be to sign up for a Site Analysis, once you have secured your land.

How do I get started?

To get started, order your Site Analysis to meet onsite with a CERM-EX representative for a delivery assessment and site work evaluation.

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