Roof Joist Construction Details

Double the tiles at eaves and project them 1 inch over the rear edge of gutters.

Roof joist construction details.

End bearing in hanger on a top plate. End bearing in hanger supported by a beam. Intermediate bearing with blocking panels. Lay all tiles within 1 foot of hips ridges and abutting vertical surfaces in roofer s cement.

End bearing with rim board. I joists in floor and roof applications. Good installation begins with specification of the correct joist for the application. This will give additional stability to the roof structure.

For additional stability you can also use steel joists that are built into one or both of the walls. End bearing in hanger supported by i joist s 44kb. Secure each tile with two large head roofing nails. Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading.

I joist construction details. End bearing with blocking panels. The construction of the flat roof is similar to that of the timber upper floor. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

In addition to floor and roof framing details this guide includes recommendations for cantilevers and placement of web holes. End bearing with rim joist. Lay 10 or 12 inch tiles with 1 inch head lap on the sides of dormers.