Waterproofing Roofing. Your Re-Roofing Specialists
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Glossary of terms used on this site

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Term Definition
Base flashing

That portion of the flashing attached to or resting on the deck to direct the flow of water onto the roof covering.

Battens

1"x2"x4' wood strips nailed to the roof, upon which the field tile hangs.

Bird stop

In addition to preventing birds from nesting in the hollows of the tile, this length of formed metal or foam elevates the first course of tile so that it is positioned at the same angle as subsequent courses.

Blisters

Bubbles that may appear on the surface of asphalt roofing after installation.

Built-up roof

An outer covering of a comparatively flat roof, consisting of several layers of saturated felt. As laid, each layer is mopped with hot tar or asphalt. The top layer is finished with a mineral or rock covering and a special coating.

Bundle

A package of shingles. There are 3, 4 or 5 bundles per square.

Butt edge

The lower edge of the shingle tabs.

Caulk

To fill a joint with mastic or asphalt cement to prevent leaks.

Chalk line

A line made on the roof by snapping a taut string or cord dusted with chalk. Used for alignment purposes.

Class "A"

The highest fire-resistance rating for roofing as per ASTM E-108. Indicates roofing is able to withstand severe exposure to fire originating from sources outside the building.

Class "B"

Fire-resistance rating that indicates roofing materials are able to withstand moderate exposure to fire originating from sources outside the building.

Class "C"

Fire-resistance rating that indicates roofing materials are able to withstand light exposure to fire originating from sources outside the building.

Closed cut valley

A method of valley treatment in which shingles from one side of the valley extend across the valley while shingles from the other side are trimmed two inches from the valley centerline. The valley flashing is not exposed.

Coating

A layer of viscous asphalt applied to the base material into which granules or other surfacing is embedded.

Collar

Pre-formed flange placed over a vent pipe to seal the roof around the vent pipe opening. The collar is also called a vent sleeve.

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Waterproofing Roofing

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

Contact us today for your free quote!

Commitment To Safety

 COR Safety certifying body

Waterproofing Roofing is committed to a proactive health and safety program aimed at protecting our staff, our clients property, and the environment from injury or damage. We are an avid supporter and advocate member of the Alberta Certificate of Recognition program which certifies that we have an active Health and Safety Program in place.

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