How to Insulate a Metal Building with Reflective Insulation

Checklist for Equipment

When installing Factory Steel Overstock’s insulation it is a quick and easy process with just a few tools required.

This list may differ based on the type of insulation you decide to use on your project.

Equipment Checklist:

(Retrofit Application)

  • Super Metal Sealant
  • Screw Gun
  • Self-Tapping Screw

(Non-Retrofit Application)

  • Reflective Tape
  • Double-Sided Tape
  • Utility Knife

Reflective Tape

In order to properly seal the seams of insulation you will use reflective tape. To utilize your insulation to its fullest degree you will need to seal the seams. This tape works efficiently in the coldest and warmest weather. The vapor barrier that is created from this tape increases the effectiveness of your insulation. It is UV-resistant, keeps its strength over time, has high performance, and is easy to apply. 

Double Sided Tape

This tape helps keep the insulation in place while installing. It allows you to attach the insulation to the surface you are installing as well as seal the seams.

Super Metal Sealant

This sealant is unique because it has the capability of attaching your insulation to many surfaces: concrete, steel, metal, aluminum, wood, and fiberglass. It is effective immediately allowing you to install insulation on vertical surfaces much easier and without using nails or staples. Allowing 60 minutes to set up this sealant increases the value of your R-Value insulation by sealing holes which sometimes can happen from a fastener application.

Utility Knife

This will be used to cut your insulation after you measure your surface area for installation. 

Screw Gun

Can be very helpful to fasten your insulation and continue the installation process covering all surfaces of your metal building. 

New Install

We have provided a step-by-step guide showcasing the best way to insulate your steel metal building. This process is simple and fast. All you need is the required items from our equipment list and your insulation from Factory Steel Overstock.

If needed feel free to use our insulation calculator to find out how many rolls you will need to insulate your steel metal building.

New Install Roof and Wall Insulation Over Purlins

You can pick between our R-Value 15.3, 17, and 22 insulation types.

  1. Apply the double-sided tape on each purlin at the top to keep it in place and not blow in the wind.
  2. Roll out the insulation perpendicular to each purlin.
  3. Give the insulation two inches to sag below. This allows you to trap the air efficiently, creating an additional insulation layer.
  4. To fix each seam you will then use your reflective tape. If you are using Reflective R-Value 17 you won’t need to do this as the insulation includes an adhesive on the roll. 
  5. Then simply attach your sheeting.

New Install Roof and Wall Insulation Over and Under Purlins

For this, you should be using our R-Value 15.3, 17, and 22 insulation types.

Follow the Steps 1-5 from above.

  • Using your Super Metal Sealant you will glue the second layer of insulation underneath the purlins.
  • Applying the insulation perpendicular to the purlins. If you have 48” wide rolls the width between each purlin won’t be an issue since you’re running the insulation in the opposite direction.
  • To reinforce the insulation and keep it in place properly you will use your self-tapping screw about every 3-4 feet.

Existing Structure (Retrofitting)

Retrofitting can be referred to as insulating an existing steel metal building. This can be done to buildings with or without insulation already installed.

You can use our R-Value 15.3, 17, and 22 insulation types.

  • To attach your insulation you will be using your Super Metal Sealant and double-sided tape. Adjacently running the tape and glue to each other to create a short and long-term hold. 
  • Using the self-tapping screws every 3-4 feet to reinforce the stability of your insulation.

More RetroFitting Options: Attaching the Insulation to the Sheeting

There is a total of 95% industrial new construction in the United States. With the increase of metal buildings, there is an increase in insulation options. If you are familiar with steel metal buildings and working inside them you understand how extreme temperature changes can be.

Insulation allows your building to stay at a comfortable temperature during the hot season and cold. Keeping you protected from weather, noise, ventilation, and reducing your energy bills.

Below is a guide to help you insulate your steel metal building to new and existing structures. Keeping your building condensation-free.

Types of Metal Building Insulation

There are 5 insulation that is most commonly used: fiberglass, reflective foil, insulated panels, rigid boards, and spray foam.

Every type of insulation has its pros and cons. This can vary between price and performance.

We have been in the industry for 35 years and recommended Factory Steel Overstock’s Fiberglass and Reflective options for insulating your steel metal building.

Why Factory Steel Overstock?

This provides your steel metal building with an all-in-one solution with new-generation performance.

Factory Steel Overstock:

  • Foil-structured reflective surface with a closed-cell polyethylene foam inside
  • 97% radiant heat prevention
  • R-Values that do not get affected by compression or humidity
  • Fire-Resistant
  • Increase airflow from the rippling surface
  • No leakage and seals properly around nails
  • Holds its value and structural integrity over time
  • Vapor Barrier
  • Prevents rodents, birds, and bugs from nesting
  • Prevents any growth of mildew or mold
  • Eco-Friendly

When choosing steel metal building insulation, we suggest R-Value 15.3, 17, and 22 insulation types.

How to Avoid Condensation in Steel Buildings

Just like when you bring a cold beverage outside in the summer, when warm air comes into contact with a cold metal surface condensation occurs. When condensation occurs it can be both concealed and visible. When visible you will be able to see water form, icy surfaces, as well as cold pipes and cooling ducts. If the condensation is concealed it takes much longer to become aware of its presence. It appears as wet spots, stains, paint peeling, or bubbles on walls surfaces.

Condensation allows for the growth of mildew and mold. This can lead to health issues, nesting of insects, foul odors, and ruin the structural integrity of your building.

  • Proper air circulation should be in place at all times. Fans help keep your steel metal building create evaporation when there are plants or heaters in your building.
  • The higher the quality of your ventilation system the better. Ceiling vents remove hot air directly outside.
  • Examine your lighting to be sure they are not generating heat. Heat leads to additional moisture at times.
  • Having proper drainage systems will keep water, rain, and melting snow away from your building.
  • Dehumidifiers can be used in high-moisture areas of your building.
  • Sealing your insulation ends and covering joints to keep moisture out from the insulation layers. Most importantly when using fiberglass insulation!
  • Never leave metal faces exposed when applying your insulation. When installing, do this in a continuous mode.
  • Apply insulation to the walls and roof of your steel metal building. Eliminating any part of your building to have vulnerable areas.
  • Use high-quality insulation that prevents condensation, and works as an air/vapor barrier. 
  • Insulation options vary. Factory Steel Overstock is a high-quality solution with maximum performance for your steel metal building.