Asphalt Roof Covering

Low slope asphalt roofing systems such as built up roofing or modified bitumen are the most cost effective choice for commercial roofing projects because they maximize usable space to design areas for recreation or gardens.

Asphalt roof covering.

Asphalt shingles consist of a base material covered with a layer of asphalt or modified bitumen and topped with mineral granules. There are many kinds of asphalt shingles on the market including energy star certified products that may be eligible for a tax credit. Organic asphalt shingles have nothing to do with being environmentally friendly. Today s asphalt roofing products are beautiful affordable reliable and are trusted to perform exceptionally well against extreme weather conditions.

Asphalt shingles popular in the early years of the 20th century fulfilling a need for an economical fire resistant roof covering. It is sold as 15 pound or 30 pound felt a figure that represents the weight of one square 100 square feet of the material. I walk you through some of the repairs we make to this old asphalt flat roof in wembley london we are going to cover the roof with a new liquid roofing syste. Asphalt roofing is the most common form of roof covering in the united states.

Mastic asphalt is a mixture of asphalt bitumen and aggregates. Iko permascreed is a mastic asphalt levelling screed for flat roofs walkways vehicle decks. It is not as common as built up felt for small domestic roofs even though it is known to be more durable and generally performs better as a waterproofing material. If your roof isn t working everything beneath it is at risk.

It is designed to provide drainage falls as well as a stable base for the specified waterproofing system. It is manufactured in the uk from selected bitumen s limestone filler and specially graded aggregates. Over the years asphalt shingles have increasingly become recognized as an economical fire safe and aesthetic product with a combination of beauty durability longevity and value. They are economical easy to install and easy to maintain.

Here s why you should choose asphalt shingles over other materials for your new roof. A mastic asphalt roof gives a seamless covering and can be used on timber metal and concrete decks. Made of asphalt impregnated felt it is used as an underlayment between the roof deck and the roofing material. No matter how large.

Traditional asphalt impregnated felt roofing like that in our sketch above is installed overlapped a minimum of 2 3 inches single coverage or overlapped half its width or 16 inches double coverage or overlapped 2 3 its width to give a 12 inch exposure and a 3 ply roof or 3 4 of its width to give a 9 inch exposure and a 4 ply roof. The reason is simple. It is sold in rolls 36 inches wide that cover either two or four squares.