Roof Eaves Dimension

These benefits do not come cheaply though.

Roof eaves dimension.

An eave is the edge of the roof that overhangs the face of a wall and normally projects beyond the side of a building. It is often compared to slope but is not exactly the same. Anything more than 9 in 12 is considered steep. Although ceramic tile roofs are expensive they can have a life span of over 100 years.

Overhangs are common in most house designs providing protection against both wind and rain. A low slope roof is anywhere from 2 in 12 to 4 in 12. However there is also an architectural purpose to them. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

Conventional slope roof range between 4 in 12 and 8 in 12. They also help to frame windows on upper stories. Rw roof width dimension a in my sketch at left. The eaves are the edges of the roof which overhang the face of a wall and normally project beyond the side of a building.

The siding underneath the overhang is known as the soffit. The eaves form an overhang to throw water clear of the walls and may be highly decorated as part of an architectural style such as the chinese dougong bracket systems. Remember to include in a the amount by which the roof extends out over the building walls its eaves. Eaves form the overhang to distribute water clear of the walls.

Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. A 12 in 12 roof can cost up to 50 more than a 4 in 12 roof. This provides added protection against ice dams. Steeper sloped roofs are considered more aesthetically pleasing and last longer.

Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years. Some roofers install a layer of waterproof shingle underlayment wsu over the existing shingles at the eave end as would be done for a roof laid on bare sheathing. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Rl is simply the building width plus the amount of overhang at the two gable ends of the building.

That is their functional purpose.