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Roofing Glossary
Choose from ABC's at top of page for more terms |
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| Heat Welding |
method of melting
or fusing together the overlapping edges of separate
sheets of thermoplastics and polymer modified bitumens.
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| Headlap |
the minimum distance, measured
at 90 degrees to the eaves along the face of a shingle
or felt, form the upper edge of the shingle or felt
to the nearest exposed surface. |
| Holiday |
an area where a liquid applied
material is missing. |
| "Hot Stuff"or "Hot" |
the roofer's term for hot bitumen |
| Hygroscopic |
the term used to describe a material
which attract, absorbs and retains atmospheric moisture. |
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