Flat Roof Glossary

A roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.

Flat roof glossary.

It is usually employed on nearly flat or completely flat roofs to prevent leaks and move water off the roof itself. Pvc and tpo membranes are considered thermoplastic membrane. When shopping for an industrial or commercial roof drain or replacement part it is important to be clear with a manufacturer or distributor what you need. Flood coat the top layer of bitumen in an aggregate surfaced built up roofing membrane.

2 part of a flat roof structure that receives the ends of the flat roof joists. This type of roof needs a sealed system installation. A mansard roof is a four sided roof with two steep roof planes that meets with a flat plane on the top often punctured with dormers. A membrane roof refers to the material that functions as waterproofing.

3 part of a suspended timber floor construction that provides a level bearing and fixing point for the joists and uniformly distribute loads from the joists to the wall below the plate. Otherwise you may inadvertently end up with the wrong drain or part or the wrong size leading to more time that your roof lacks the proper. The amount of fall of a roof is described as its pitch. Barge boards batten counter batten dormer eaves fascia felt roof cold felt roof hot flashing flat roof gable gauge hip hip board hip end margin nail sickness rafter ridge ridge board ridge tile sarking sarking board slate soffit tiles interlocking tiles plain tingle truss underfelt valley verge.

The same roof has a 4 12 or 1 3 pitch. A type of roofing used primarily in flat or nearly flat roofs. Gravel coarse granular aggregate having rounded edges resulting from the natural erosion of rock. Flat roofs are not flat they have falls or slopes which allow the water to drain away and prevent ponding.

Pvc and tpo membranes are considered thermoplastic membrane. Built up roofing a flat or low sloped roof made up of layers of asphalt and ply sheets. Glossary of common roof drain and parts terms. What is a membrane roof.

Flat or low slope roof a roof with a pitch of less than three feet of rise over a twelve foot run. Glossary of roofing terms. The way the roof falls determines which way the water drains off into gutters and outlets. The terms pitch and slope are simply two different ways of expressing the same measurement.