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Roofing Glossary
Choose from ABC's at top of page for more terms |
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| Glass Fiber Felt |
A felt sheet in
which glass fibers are bonded into the felt sheen
with resin. Glass fiber felts are suitable for impregnation
and coating. They are used in the manufacture and
coating of bituminous waterproofing material, roof
membranes, and shingles.
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| Glass Fiber Mat |
a thin mat composed of glass
fibers with or without a binder. |
| Glaze Coat |
(1) the top layer of asphalt
in a smooth-surfaced built up roof assembly; (2) a
thin protective coating of bitumen applied to the lower
plies or top ply of a built up roof membrane when application
of additional felts or the flood coat and aggregate
surfacing are delayed. |
| Gravel |
coarse, granular aggregate, containing
pieces approximately 5/8 inch to 1/2 inch in size and
suitable for use in aggregate on built up roofs. |
| Gravel Stop |
a flange devices, frequently
metallic, designed to provide a continuous finished
edge for roofing materials and to prevent loose aggregate
form washing off of the roof. |
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