Ridge Plate Roof

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.

Ridge plate roof.

Whether you need corrugated metal decking for concrete or steel roof decking you can count on o donnell metal deck. Roof slope is commonly represented as x in 12. In our rafter type drawing above common rafters are drawn in red. Which is equal to 1 4 or 1 3 the total span of the building not counting any overhang.

Pitch can vary a great deal from a shallow slope up to a very steep pitch. 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. Are angled pieces of steel are designed to support roofing material at a hip or valley condition. The ridge board must be set as perfectly as possible so take your time and use careful measurements.

About o donnell metal deck. Ondura 5259 4 in x 39 5 in cellulose fiber asphalt roof panel ridge caps. How pour stops work. The main elements of the gable roof layout are the ridge beam common rafters and wall plate.

Ridge boards can only be used in roofs with slopes from 3 in 12 up to 12 in 12. 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. Pitch is the slope or angle from the wall plate to the roof ridge line.

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. Gaf cobra ridge runner 13 4 in x 240 in black plastic roll roof ridge vent. 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. A ridge valley plate acts as a cap or cover where two sheets converge on top of a roof line.

In simple language the ridge of a roof is the peak where two opposing roof planes meet. Pitch for a gable roof the most common is generally 1 4 or 1 3. 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.