Timber Flat Roof Fascia Detail

Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls.

Timber flat roof fascia detail.

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Fascias may have a wide variety of decorative patterns. The details shown concentrate on combined gravel stops and fascias.

Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading. The joists are attached to load bearing walls by two common methods. Flat roof joists spanning the shorter length of the roof form the load bearing members of the structure. Gravel stops and fascias are used where flat roofs end to provide a weathertight transition between roof and wall.

Whatever new flat roof covering you choose epdm rubber kemper. I explain problems with insulating a roof using the warm and cold roof construction methods. A timber decking is then constructed and its weight supported by the joists. For additional stability you can also use steel joists that are built into one or both of the walls.