INSTALL GUIDES: Quonset Hut
The Most Popular item is 10M. The following are excellent 5M choices: Prodex 48 Inch, Fast Action, 62 Inch Fast Action, White, 72 Inch, 24 Inch and 16 Inch. Other options include: Reflective Bubble Reflective or Foil Fiberglass Vinyl.
How to Install Quonset Hut Insulation
Complete Quonset Hut Insulation Guide - Installation, Condensation Control, Energy Savings & Product Selection
Learn how to install Quonset hut insulation that helps stop condensation, reduce radiant heat, improve energy efficiency, and keep your metal building comfortable throughout the year.
The equipment checklist includes:
- Reflective tape
- Super metal sealant
- A utility knife
- Perforated insulation pins with caps
- Heat gun (for sealing seams of 10M).
Step 1 Put a glob of Super Metal Sealant on the base of the perforated pins. Press the base of the perforated pins on to the metal sheeting. It's fine that the adhesive oozes through the holes of the base (you can smooth it out if you want). This part of the adhesive helps hold the anchor pin on to the metal. Space pins 1 per every 2 square ft. On roof area, space pins 1 per every sq. ft.. On ceiling area (highest part of Quonset) double the amount of pins. Allow 24 hour cure time. The cure time can vary depending on the temperature and humidity
Step 2 Push the insulation on to the pin. Once it's through the pin, push the cap onto the pin and press it down to secure the insulation.
Step 3 Once the insulation is secured, snip the end of the pins. You may also want to apply tape over the cut tip of the pin to avoid someone getting cut.
Best Quonset Hut Insulation: Choosing the Right System
Selecting the best Quonset hut insulation is about more than adding R-value. Because Quonset buildings are constructed from curved steel panels, the insulation must help control radiant heat, condensation, air movement, and conductive heat transfer while conforming to the shape of the building. This requires a Radiant barrier, Vapor Barrier, and Insulation because of the unique nature of the metal arches.
The sun's rays on the metal surface creates unbearable heat inside the building in the summer. Cold winter temperatures are exaggerated by the metal sheeting making it frigid inside. Warm temperature on a cool metal creates sweating (condensation). Prodex Total serves a true vapor barrier and condensation eliminator. It has a high R-value and it prevents radiant heat transfer (primary source of heat-flow).
Unlike traditional framed structures, a metal Quonset hut quickly absorbs solar heat during the summer and rapidly loses heat during the winter. Warm, humid indoor air can also reach the cooler steel shell, causing condensation that may drip onto equipment, vehicles, inventory, or finished spaces.
Prodex Total is designed specifically for these conditions by combining multiple performance benefits into one insulation system:
Reflective radiant barrier that blocks radiant heat from the metal shell.
True vapor barrier that helps prevent moisture from reaching the steel.
Closed-cell insulation that maintains thermal performance without absorbing water.
Condensation control that helps keep the interior dry year-round.
Flexible material that follows the curved profile of Quonset hut walls and roofs for a cleaner installation.
Why Prodex Total Is One of the Best Insulation Options for Quonset Huts
Many insulation products address only one part of the problem. Fiberglass primarily slows conductive heat transfer but can lose performance if it becomes damp. Reflective bubble products often compress against the metal and provide limited insulating value. Spray foam provides insulation but does not function as a reflective radiant barrier and can be difficult or expensive to retrofit.
Prodex Total combines reflective insulation, a vapor barrier, and closed-cell foam into a single product that helps address heat, cold, air infiltration, and condensation simultaneously.
Cool in the Summer. Warm in the Winter. Dry all the Time. One Solution to heat, cold and Condensation - Prodex Total.
Quonset Hut Condensation Control
One of the biggest challenges with Quonset hut insulation is preventing condensation. As indoor humidity contacts cool metal panels, water droplets can form on the ceiling and walls. Over time this moisture may contribute to rust, mold, damaged insulation, and wet floors.
Properly installed Prodex Total creates a continuous interior barrier that helps keep warm, moisture-laden air away from the metal skin. This greatly reduces the conditions that allow condensation to form while improving indoor comfort throughout the year.
Whether you're insulating a new Quonset building or retrofitting an existing structure, selecting insulation that provides radiant protection, vapor control, thermal resistance, and condensation prevention is the key to long-term performance.
It can seem like a tropical rain forest inside an unprotected metal quonset. It's worse on those days where there is a greater contrast between temperatures at night vs. day. This typically occurs when relatively warm most air comes in contact with a relatively cold surface.
Using Prodex Total as your insulation will eliminate moisture (condensation) from forming on the metal sheeting. Prodex creates a shield (a new interior surface) that is warmer (or at least above the dew point). Prodex Total keeps the warm-moist air from reaching the cooler metal exterior.
Cool in the Summer. Warm in the Winter. Dry all the Time. One Solution to heat, cold and Condensation - Prodex Total.
Prodex Total is superior to fiberglass in quonset metal buildings because:
Its R-value is unaffected by humidity or water.
It doesn't mildew or promote fungus growth
It keeps the building cool in the summer
It doesn't promote nesting for rodents, bugs and birds.
It is much easier and less expensive to install.
Prodex Total is superior to double bubble insulation in quonset buildings because the heat from the metal skin doesn't cause its center to collapse. With a pressure of 6 PSI Prodex compresses just 6%. When the load is relieved it takes back its initial shape. The density of the foam is between 1.25 lb/ft (sq) - 1.87 lb/ft (sq). This gives the material real body.
Disadvantages of Spray Foam Insulation In Quonset Metal Buildings
- High spray foam insulation cost
- It doesn't prevent radiant heat transfer (the primary source of heat transfer into and out of a building - especially metal buildings and pole barns.
- Do it yourself spray foam insulation can't be done by yourself to retrofit an existing building structure because of the chemicals and processes involved.
- Nearly impossible to use in conjunction with another insulation type.
- R-value will diminish slightly with age.
- With the exception of cementite foams, spray foam insulation can release toxic fumes when it burns.
- According to the U.S Environmental Protection Agency, there is insufficient data to accurately assess the potential for exposures to the toxic and environmentally harmful isocyanides which constitute 50% of the material.
- Depending on usage, building codes and environment, most foams require protection with a thermal barrier such as drywall on the interior of the house.
- Can shrink slightly while curing if not applied on a substrate heated to manufacture's recommended temperature.
- Although CFC's are no longer used, many use HCFCs or HFCs as blowing agents. Both are potent greenhouse gases, and HCFCs have some ozone depletion potential.
- Most, such as Polyurethane and Isocyanine insulation, contain hazardous chemicals such as benzene and toluene. These are a potential hazard and environmental concern during ray material production, transport, manufacture and installation.
- Many spray foam insulations are made from petrochemicals and may be a concern for those seeking to reduce the use of fossil fuels and oil.
- Most spray foams require protection from sunlight and solvents
Learn More About Reflective Insulation for Quonset Huts
The curved steel design of a Quonset hut creates unique insulation challenges that differ from conventional buildings. Choosing the right insulation helps improve comfort while reducing heat gain, heat loss and condensation.
Our Ultimate Reflective Insulation Guide explains:
How reflective insulation works
Understanding R-value
Why reflective insulation performs well in curved steel buildings
How reflective insulation compares with fiberglass, spray foam, mineral wool and cellulose
How to choose the best reflective insulation for your Quonset hut
Learning the science behind reflective insulation will help you make the best long-term decision for your Quonset hut.
Frequently Asked Questions About Quonset Hut Insulation
What is the best insulation for a Quonset hut?
The best Quonset hut insulation helps control radiant heat, condensation, air movement, and conductive heat transfer. Because Quonset huts are constructed from curved steel panels, insulation should also conform to the building's shape while creating a continuous vapor barrier.
Prodex Total combines reflective insulation, a true vapor barrier, closed-cell insulation, and radiant barrier technology into one system. This helps keep Quonset buildings cooler during the summer, warmer during the winter, and dry year-round.
For more information, see our guide to Metal Building Insulation.
How do you stop condensation in a Quonset hut?
Condensation forms when warm, moisture-laden air contacts the cooler metal shell of the building. Water droplets can develop on the ceiling and walls, potentially leading to rust, mold, damaged contents, and slippery floors.
Installing a continuous vapor barrier such as Prodex Total helps prevent warm indoor air from reaching the metal surface, dramatically reducing condensation while improving comfort and energy efficiency.
Learn more in our guide to Condensation in Metal Buildings: Causes, Damage & How to Stop It.
Is reflective insulation better than fiberglass for a Quonset hut?
Reflective insulation and fiberglass perform differently. Fiberglass primarily slows conductive heat transfer but can lose insulating performance if it becomes wet or compressed. Reflective insulation helps reduce radiant heat transfer, which is especially important in metal buildings exposed to direct sunlight.
Prodex Total combines reflective insulation with a vapor barrier and closed-cell insulation, providing protection against radiant heat, moisture, and condensation in one product.
Read our complete comparison: Reflective Insulation: Measuring Its R-Value vs. Fiberglass.
Can you insulate an existing Quonset hut?
Yes. Existing Quonset huts can be insulated without removing the exterior metal panels. Prodex Total is commonly installed on the interior using insulation pins, allowing owners to upgrade comfort, reduce energy costs, and eliminate condensation in existing buildings.
How many rolls of Prodex Total insulation do I need for my Quonset hut?
Find the insulation calculator (on every page of the website toward the top right). For your wall height, you'll need to estimate what would be the height if you had a straight-wall building. The calculator will help determine the number of Prodex Total rolls required based on your building dimensions.
Buy Quonset Building Insulation With Confidence
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ICC-ES Recognized - ICC-ES is an evaluation service that takes independent test data for a variety of products and analyses it against a uniform Acceptance Criteria that is recognized internationally.
Prodex adds an extra layer of credibly by submitting these rolls to the ASTM Rima International verification program. By having a third party verification, Prodex assures its clients that the insulation complies with industry standards, and is suitable for any construction system.
Ready to choose the right reflective insulation? Browse our complete selection of Buy Reflective Insulation.
Featured Quonset Hut Insulation For Sale
WHITE 5M Plus: R15.3
Thickness: 5mm (0.2") closed cell polyethylene foam with reflective reinforced foil on one side and plastic white finish film on the other side. Ideal where white finish is preferred.
