Shingles and Shakes are experiencing a renaissance as an environmentally friendly material for roof and wall.
Sawn shingles and split shakes in Larch and Yellow Cedar are approved under fire regulations according to EU guideline ENV 1187. This is
valid for sawn split products with bevelled profile for correctly ventilated application and for all roof pitches with 20° and up. Before the EU guidline was in place, Western Red Cedar
grade no. 1 shingles had been approved as a hard roof (meaning fire-retardent) according German standard DIN 4102 part 7.
FHP generally offers shingles and shakes from selected producers in the naturally durables species Western Red
Cedar, Alaskan Yellow Cedar and Eastern White Cedar only. |
|
Species |
Description |
Western Red Cedar (Thuja plicata) |
Red Cedar, very high natural durability Leight and soft but at the same time stable wood. Colour variation from light brown to
dark brown-red |
Yellow Cedar (syn. Alaskan Cedar, sc. Chamaecyparis nootkatensis) |
Alaskan-Ceder, very durable up-to ground contact, big hardness, very light colour and heavier than Red Cedar. |
Eastern White Cedar (Thuja occidentalis) |
Very high natural durability close to Yellow Cedar, smaller log dimensions, lighter colour, lesser density and hardness compared to Yellow Cedar. |
The grading agency for shingles and shakes made in North America is the Cedar Shake and Shingle Bureau under the quality brand name Certigrade®. These rules regulate the grain and grade as well as the dimension tolerancs for the different qualities. Normally a no. 1 grade(100% vertical grain and clear) is used on a roof and for a wall appliacation a no. 2 grade(flat grain allowed) can be used. |