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. Spf roofs are installed by spraying a liquid on the existing roof and allowing it to expand into a foam. It is more popular in business and industrial setting than it is on homes. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. This process means that the foam can conform to all roof shapes and types even irregularly shaped roofs.

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. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. A thick typically 1 5 thick closed cell polyurethane waterproofing barrier seals the roof against leaks. One thing the foam will look funny to some folks kinda like snow if it is done right.

Foam roofing is a newer material that can provide you with a few benefits as well as some drawbacks. Note the 2 lb ft3 spray polyurethane foam enhancing the air seal around the extended rafters. Polyurethane foam roofing is a style of roofing that is sprayed on. 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.

If not applied evenly it can look pretty gross. Although they are expensive compared to other types of flat roofing the added insulation will save you money over time. Read on to learn about some of the pros and cons of this type of roofing. 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. 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. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

Your foam manufacturer can assist with providing the correct system. Foam roofs are lightweight durable and seamless. 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. The dura foam roof system has a rigid and durable surface that you can walk on.