Waterproofing Roofing. Your Re-Roofing Specialists

Glossary of terms used on this site

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Term Definition

Roofing application method in which shingle courses are applied vertically up the roof rather than across and up. Not a recommended procedure.


The supporting framing member immediately beneath the deck, sloping from the ridge to the wall plate.


The inclined edge of a sloped roof over a wall from the eave to the ridge.

Random-tab shingles

Shingles on which tabs vary in size and exposure.

Re-cover (overlay)

The installation of a new roof system over an existing system without removing an existing system.


Installing a new roof system on a building that is not new.

Release tape

A plastic or paper strip that is applied to the back of self-sealing shingles. This strip prevents the shingles from sticking together in the bundles, and need not be removed for application.


The uppermost, horizontal external angle formed by the intersection of two sloping roof planes.

Ridge shingles

Shingles used to cover the horizontal external angle formed by the intersection of two sloping roof planes.


The vertical distance from the eaves line to the ridge.

Roll roofing

Asphalt roofing products manufactured in roll form.

Roofing tape

An asphalt-saturated tape used with asphalt cements for flashing and patching asphalt roofing.


The horizontal distance from the eaves to a point directly under the ridge. One half the span.

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Waterproofing Roofing

The Re-Roofing Specialists
2243 31 St N
Lethbridge, AB
T1H 6Z2
Phone: (403) 320-8128

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