Insulating Flat Roofing Insulating Flat Roofing

What You'll Need
A ladder
A broom
Vapor barrier
Tar adhesive
Rubber membrane
Protective eye wear
Work gloves
Work boots

Flat roofing can be challenging to insulate. Flat roofing systems can be found on houses, garages and other building structures. Water is more likely to leak into a flat roof than a slanted one. There are a variety of different types of insulation applications available including: blanket, blown and rigid insulation. Various materials are used in manufacturing these forms of insulation, such as styrofoam and polyurethane. You will need to research the market and thoroughly inspect your roof before you choose the best insulation for your situation. Properly insulating your flat roof will add years to the life of it.

Step 1 – Safety

Put on your protective eye wear, work gloves and work boots before you begin. Be careful moving up and down the ladder. Always be aware of the edges of the roof while you are working. Be sure to have a friend or family member with you while you work. Check the forecast to be sure you have a day of good weather to complete your roofing job.

Step 2 – Ventilating the Roof

There are no eaves nor soffits through which air can flow in a flat roofing system. It is important to install a proper ventilation system in order to provide a means for any moisture or hot air to escape. Moisture and excess heat can damage insulation. Install the vents on the side exterior walls or on the roof. You will need to apply a generous amount of sealer around the roof vents to prevent any leaks.

Step 3 – Installing Vapor Barriers

Vapor barriers provide a secondary layer of protection from moisture and heat. They are constructed from polyethylene film and building paper. Install your vapor barrier between the joists and the insulation.

Step 4 – Sealing Insulation Gaps

You can may find gaps in the insulation around holes and fixtures. These gaps can allow moisture and heat leaks and pockets which could cause a great deal of damage. You will need to seal these gaps to protect your insulation, ventilation and vapor barriers and to enable them to work efficiently.

Step 5 – Choosing Your Insulation

Blown insulation is the easiest to install. You will need a professional to install it or to assist you in the installation process. Blanket and rigid insulation are less expensive than blown insulation but their installation process is more difficult.

Step 6 – Insulating the Roof

Remove all of the roofing materials from your roof. Clean the roof to remove any dirt or residue from the surface. Read the instructions provided by the manufacturer of the insulation you are using before you begin to install it. Lay your installation on the rooftop. Apply a tar adhesive over all of the insulation on the entire roof.

Step 7 – Finishing the Roof

Install rubber on the roof. Work in an area that is four feet by four feet. Apply a thick layer of adhesive to the area. Lay the rubber membrane over the adhesive. Be sure there are no wrinkles in the material. Continue until the entire roof is complete.

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