Roofing Layers Allowed Florida

Two or more layers of any exist ing roof coverings.

Roofing layers allowed florida.

This roofing system has two layers of material. When replacement is required there will likely be an added expense in removal and disposal of the material it s not a deficiency so i just give an informational statement. And when the existing roof system is wet or deteriorated to the point it will not be a suitable substrate. A roofing contractor will know exactly how many layers of roof shingles are allowed in your area for your building but it is normal that you will be permitted up to three layers of shingles.

On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing. This law states that if more than 25 percent of a building s roof must be replaced within a 12 month period then the entire roof may need to be replaced. When roof system removal is required the code stipu lates all layers of existing roof systems need to be removed down to the deck. Yes provided the existing roof covering is suitable as a base for the installation of the additional roofing as stipulated by section 611 3 of the florida existing building code.

Asphalt shingles are composed of a base material which is either an organic felt of a glass fiber mat asphalt and surfacing material which is generally a mineral granule. When it s time to replace your roof there are several factors that might lead your roofing professional to recommend adding shingles on top of your existing layers. When you replace a roof on a home that was built before the implementation of the statewide florida building code on march 1 2002 the nailing of the roof sheathing decking must be brought up to current standards for hurricane resistance as part of the installation of the new roof. The requirement became effective on october 1 2007.

The code includes several specific excep tions to its roof system removal and replace. Steep sloped roof products such as tile slate metal and shakes only allow one layer. Most building codes allow up to two layers of organic or fiberglass asphalt shingles. Asphalt shingles are the predominate roofing material used to roof homes in florida.

That limit pertains to roofs with up to a 4 12 pitch. There are slight differences to the rule for buildings in or out of an hvhz so it is important to know where your building lies. To start viewing messages select the forum that you want to visit from the selection below. Another important florida roofing rule is the 25 percent rule.

While this is acceptable under the florida building code it is the maximum number of layers allowable. Are 2 layers of shingles allowed. I live in seminole florida. If this is your first visit be sure to check out the faq you must register before you can view photos and images.