Fiberglass Composition Shingles:
Fiberglass & Asphalt Shingles(Composition) Products are currently a popular type of residential roof material for a variety of reasons. One is that, they are relatively inexpensive. Fiberglass Composition usually start at around $2.85 per square foot installed and go up from there. Things that determine cost are slope of the roof, height of the building, ease of access to the premises, complexity of the project, the particular type of shingle and numerous other factors.

Flat Roofing Products:
FLAT ROOFING PRODUCTS Modified bitumens, like built up roofing (BUR), are made of reinforced asphalt-impregnated felts. But, unlike BUR, the asphalt in the felts is modified with plastic or rubber polymers (hence the name) to improve its elasticity, durability, and overall performance. Because of the added polymers, modified bitumens are often applied in a single layer with overlapping seams. They can be "glued" to the roof with hot asphalt or an adhesive, or by using propane torches to melt the asphalt underside. Some modified bitumens require protective surfacing materials, usually mineral granules or a liquid coating