Parts Of A Roof Rafter

It is a combination of two cuts.

Parts of a roof rafter.

Decking or sheathing usually made from 1 2 inch plywood the decking closes and reinforces the roof structure and provides a nailbed for the shingles. A waterproofing seal installed along the roof s valley line with taktekkernbergen no. Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang. The cripple jack rafter is also part of a common rafter but it touches neither the ridge of the roof nor the rafter plate.

There must be no gaps in the precision of the fit. Flashing if you have vent pipes chimneys or valleys on your roof you need to protect them and seal them against. Measure and mark cap plates for each rafter. Part of a roof s frame a ridge board runs horizontally along the peak of a sloped roof.

The horizontal beam connecting two rafters that intersect at the ridge. The part of the rafter that sits on the wall plate is known as the bird s mouth. A piece of lumber laid horizontally on a wall to support the rafter. The top of a a rafter usually joins a ridge.

A chief structural member as it is a load bearing wall. Here s a closer look at several other components of your rooftop system. The ridge cut also called the plumb cut at the top of the rafter the birdsmouth cut which itself comprises 2 different cuts where the rafter meets the building s wall and the tail cut at the base of the rafter. One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.

The ridge is the horizontal peak of the roof. Gutter and downspout the key role of a roof is to protect your house from water and to make that. Parts of a rafter. Cap plates are little metal braces that will secure the trusses to the walls.

Essentially the spine of a conventional stick framed roof the ridge board is sandwiched between the meeting ends of the roof rafters. The ridge is the peak where two sloped roof sections meet. The miter is simply a plumb cut. The central vertical post in a king post roof truss.

In general a rafter needs to be placed every two feet at least for maximum load bearing support and security. When you cut the rafters you ll need to make 3 separate cuts. If there is a noticeable gap then it should be a red flag for investigation. Collar tie and beam a collar tie or beam figure 7 7 is a piece of stock usually 1 x 4 1 x 6 l x 8 or 2 x 4 fastened in a horizontal position to a pair of rafters between the plate and the ridge of the roof.