Roofing Covering Examples

The irc addresses roof covering requirements in several areas.

Roofing covering examples.

Examples of a class a roof covering include concrete or clay roof tiles fiberglass asphalt composition shingles and metal roofs. This is not a recommended roof covering. It consists of multiple layers of tarpaper rolled in asphalt and applied to the roof. Organic asphalt shingles begin with paper often recycled that is saturated in asphalt and covered with granules.

Look for installations that have been in place at least 10 years to see what the wear characteristics of that material are in your area says bollnow. The national roofing contractors association nrca suggests you look at full size samples of the synthetic product and the manufacturers brochures. Made from a fiberglass base topped with asphalt and mineral granules these three tab shingles are an all around good choice for most home roofing needs. This is the most common reason and the next reason is the second most used excuse.

An example of an unrated covering is an untreated wood shake roof. The reason is simple. The roof wasn t maintained loose flashing or a cracked vent boot were found for example that allowed water through. Rolled asphalt the rolled asphalt roof covering is similar to putting asphalt shingles on your roof.

Examples of common class c building materials include untreated wood shakes and shingles plywood and particleboard. In addition small crushed stones are glued to the top of the surface giving the asphalt layer additional protection from the sun s uv rays. Asphalt composite shingles are the most popular roofing material in north america. If wood shakes and shingles are impregnated with fire retardant chemicals they meet the requirements for a class b fire rating and can meet a class a rating if additional materials are included in the roof assemblies.

There are many kinds of asphalt shingles on the market including energy star certified products that may be eligible for a tax credit. They are economical easy to install and easy to maintain. Fiberglass shingles start with a fiberglass mesh mat that is covered in asphalt and topped with granules that provide color and reflect some of the sunlight. The roofing material is faulty so it is the manufacturer s fault.

Metal roofing comes in vertical panels or shingles resembling slate tile and shake and lasts about 60 years. Shingles made with fiberglass are lightweight and resist tearing. Metal excels at sloughing off heavy snow and rain won t burn and resists high winds. Asphalt roofing is the most common form of roof covering in the united states.