Foam Roof Ver Shingles

One of the keys to over roofing is to tie the air control layer of the roof assembly to the air control layer of the wall assembly.

Foam roof ver shingles.

You use a nominal 3 lb density spf with an elastomeric coating over it that has been rated with the foam as a class a b or c roof covering. Foam roofs are lightweight durable and seamless. It is more popular in business and industrial setting than it is on homes. Spray polyurethane foam spf is the only roofing material that has no seams.

After cleaning the existing roof the spf roof can be applied directly over asphalt shingles concrete metal and wood. They do require more maintenance than some roofing options as well but after your first recoat you are typically good to go. Overall foam roofs are a great choice for flat roofs. Sprayed polyurethane foam roofing made from a combination of two substances that are fed through a machine called a proportioner which heats and feeds the two components into a spray gun.

Find here detailed information about foam roofing installation costs. Spf roofs are installed by spraying a liquid on the existing roof and allowing it to expand into a foam. Your foam manufacturer can assist with providing the correct system. The dura foam roof system has a rigid and durable surface that you can walk on.

This process means that the foam can conform to all roof shapes and types even irregularly shaped roofs. Average cost to have foam roofing installed is about 8 000 9 000 foam roof with two layers of silicone underlayment for 1 500 sq. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. This foam is applied over the top of the membrane that came down from the roof deck catching the wall control layers.

Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Although they are expensive compared to other types of flat roofing the added insulation will save you money over time. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Foam roofing is a newer material that can provide you with a few benefits as well as some drawbacks.

One thing the foam will look funny to some folks kinda like snow if it is done right. A thick typically 1 5 thick closed cell polyurethane waterproofing barrier seals the roof against leaks. Note the 2 lb ft3 spray polyurethane foam enhancing the air seal around the extended rafters. If not applied evenly it can look pretty gross.