Said another way a roof requiring r19 insulation will receive about 3 inches of polyurethane foam.
Gravel on a foam roof.
Tar and gravel roof repair.
Of all the flat roofing options a tar and gravel roof is the most economical.
With regular maintenance and repair a tar and gravel roof can last as long as 30 years.
Gravel is an excellent fire retardant.
Your tar and gravel roof is a good candidate for a foam roof system.
Spray foam roofing usually cost between 4 7 per sq.
Ultimately once cleaned and prepped and verified that the roof is dry a gravel built up roof is a very ideal surface to apply foam to.
Installation performed by washington roofing.
This is a major reduction in weight and one of the reasons foam roofing is the exception to the rule when it comes to required tear offs.
Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system.
Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system.
The new roof can be applied.
If applied the proper way spf roofing systems will have significantly less maintenance costs than traditional tar and gravel roofs.
A spray foam roof is always coated usually w silicone.
Combining high compressive strength and seamless spray in place rigid polyurethane foam with a thick layer of protective gravel your endurarock roof will save you thousands of dollars a year in maintenance and energy costs.
Polyurethane foam roofing application over modified bitumen roof.
For more information on replacing leaking tar and gravel roofs visit our spray foam roofing page.
Advantages of a tar and gravel roof.
A built up roof bur sometimes called a tar and gravel roof is a tried and true style of flat roof.
Also applying a new acrylic elastomeric cool roof coating can further weatherproof a.
Ncfi s endurarock roofing system is the perfect solution for leaking flat roofs.
Also a tar and gravel roof is very rugged and safe to walk on.