Flat Roof Wall Plate Detail

By way of metal flat roof joist hangers.

Flat roof wall plate detail. Where trussed rafter roofs are not subject to uplift a minimum of two 4 5mm x 100mm galvanized round wire nails skew nailed one on each side of the trussed rafter or truss clips fixed in accordance with the manufacturer s instructions are acceptable. Wall plates should be bedded to line and level using nails or straps to hold them down in accordance with the design requirements. Flashing conc. Surely with a face wall plate there sheer force is downward.

And bolts directly into the brick block work isn t the best especially if the wall plate spans the cavity. The wall while the horizontal strut loads cancel each other out if the roof is symmetrical. On a flat roof yes it is more so but on a pitched roof it would try and push the plate off the wall. In order for all the roof components to work they must be square parallel level and fixed down properly.

Where a new flat roof abuts an existing external wall the joists can be hung on metal joist hangers which are fixed to a horizontal timber plate wall bolted to the wall. Will all be fixed to them. Dbl2x4 top plate 2x4 studs 16 oc engineered roof trusses wi overhang level return roof apron gutter. Getting the wall plates or top plates as they are sometimes called right is important because all the ceiling joists roof rafters hips etc.

Wall plates shall be bedded to distribute roof loads and fixed to prevent wind uplift roof construction details should be available on site particularly for combination and specialist roofs. Exterior wall parapet rafters prep. A cavity closer should be provided to the top of the walls to prevent fire spread and to stop damp air entering the roof space. To wall sloped roof no overhang ledger support.

Using timber wall plates. The connections and general detail here should be provided by the design engineer. This article covers all manner of flat roofing venting methods and details on how to build a flat garage roof and how to frame a flat roof and also encompasses flat roofs roof decking roof coverings including flat roof felt how to prevent leaks at abutments timber flat roof construction details and parapets and common. They are cut to the same length as the brickwork they sit on a half lap joint is great for the corners to be fixed to.