Roof Tile Glossary

Granite a very hard natural igneous stone that is usually stain and scratch resistant.

Roof tile glossary. An architectural house style featuring steeply angled sides roofline that usually begin at or near the foundation line and meet at the top in the shape of the letter a. Quite common until the 1920 s the function of a roof truss is to support the purlins. The apex of two slopes on a pitched roof. The glazing process defines the color and surface texture and produces a hard non porous impermeable tile with a water absorption rate of 0 5 or less.

Eaves or top tiles. Incudes apex ridge and barge tiles. Exposure the portion of the shingle that is exposed to the weather. A purpose designed tile that covers the ridge of a pitched roof.

The tile is fired in a kiln at approximately 2 000 degrees. Accessory a concrete or terracotta product used to finish the roof. Tile covering the apex. The overhanging lower edge of the roof.

A single course of short tiles is also used both sides of the ridge. More recently a roof truss means a prefabricated structural timber. Sometimes found in very large buildings where big rooms resulted in few load bearing walls. Eave the horizontal edge of a roof that projects over the outside wall.

Usually measured from the butt of one shingle to the butt of the next overlapping shingles. Abutment where the roof meets a structure rising above the roof.