Ridge Plate Roof
What is a ridge and valley plate.
Ridge plate roof. Are angled pieces of steel are designed to support roofing material at a hip or valley condition. A ridge board is a non structural member that serves as a prop for opposing rafters to rest against and connect to. How pour stops work. Roof slope is commonly represented as x in 12.
Metal sales universal ridge 14 in x 126 in steel roof panel ridge caps. By evelyn fielding the ridge board and rafters are the strength of the roof. Pitch can vary a great deal from a shallow slope up to a very steep pitch. Ondura 5259 4 in x 39 5 in cellulose fiber asphalt roof panel ridge caps.
Which is equal to 1 4 or 1 3 the total span of the building not counting any overhang. The main elements of the gable roof layout are the ridge beam common rafters and wall plate. Getting a little more technical the national roofing contractors association defines the ridge as the highest point on a roof represented by a horizontal line where two roof areas intersect running the length of the area. Whether you need corrugated metal decking for concrete or steel roof decking you can count on o donnell metal deck.
The ridge board runs the length of the building and provides support for the tops of the rafters helping the whole roof structure work together as a system. About o donnell metal deck. A common rafter runs from the roof ridge to the top of the front or rear wall plate and extend beyond the wall to provide an overhang or eaves or soffit. Description ridge valley plates act as a smooth transition over two separate roof surfaces that protects the edges of the two meeting metal deck sheets.
Pitch is the slope or angle from the wall plate to the roof ridge line. Ridge beam sizing is based on the span of the beam between supports and the amount of roof load supported by the beam. For example a roof slope that rises 6 inches for every 12 inches of run is said to have a slope of 6 in 12 or simply six twelve. For pricing and availability.
Gaf cobra ridge runner 13 4 in x 240 in black plastic roll roof ridge vent. Pitch for a gable roof the most common is generally 1 4 or 1 3. In our rafter type drawing above common rafters are drawn in red. In simple language the ridge of a roof is the peak where two opposing roof planes meet.