This is Part 4 of our educational series designed to help people like yourself understand roofing, building envelope, and construction jargon. Be sure to check out the other articles here, but let’s jump right in to another educational post:

Part 4

Alligatoring:  The cracking of surfacing bitumen on a built-up roof, producing a pattern of cracks similar to an alligator’s hide; the cracks may or may not extend through the surfacing bitumen.

Flashing:  Components used to weatherproof or seal the roof system edges at perimeters, penetrations, walls, expansion joints, valley, drains, and other places where the roof covering is interrupted or terminated. For example, membrane base flashing covers the edge of the field membrane, and cap flashings or counterflashings shield the upper edges of the base flashing.

Heat Welding:  Method of melting and fusing together the overlapping edges of separate sheets or sections of polymer modified bitumen, thermoplastics or some uncured thermoset roofing membranes by the application of heat (in the form of hot air or open flame) and pressure.

Building Code:  Published regulations and rules established by a recognized agency prescribing design loads, procedures, and construction details for structures. Usually applying to designated jurisdictions (city, county, state, etc.). Building codes control design, construction, and quality of materials, use and occupancy, location and maintenance of buildings and structures within the area for which the code has been adopted.

Ridge Vent:  A ventilator located at the ridge that allows the escape of warm and/or moist air from the attic area or rafter cavity.



We hope you enjoyed reading this article on the roofing and building envelope industry, and we hope you learned something new! Be sure to click below to download a copy of our educational eBook on Energy Efficient Building Envelopes, it really is a good read that everyone dealing with roofing needs to understand.

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