Flat Roof Timber Frame Detail

Old asbestos roofs are often replaced with flat roofs.

Flat roof timber frame detail.

Sizes of joists needed for flat roof construction. 3 06 timber frame timber flat roof 3 07 timber frame timber flat roof with parapet 3 08 timber frame lintel at window head 3 09 timber frame windows and doors jambs and cills specification within an example should 3 10 timber frame ground bearing floor insulation above slab 3 11 timber frame ground bearing floor. So any timber joists that are used need to be strong enough to support this weight. Wall ground floor junction scottish building standards.

It dealt in detail with flat roof constructions and can be regarded as one of the first guidelines for such roofs fig. Separating membrane vapour barrier. 4 09 suspended ground floor slab. Chapter 7 ceiling and roof framing 40 ceiling joists 40 flush ceiling framing 42 post and beam framing 42 roof slopes 44 flat roofs 45 pitched roofs 45 valleys 48 dormers 48 overhangs 48 ridge beam roof details 49 lightweight wood roof trusses 49 chapter 8 wall sheathing 53 types of sheathing 53 corner bracing 54 installation of sheathing.

Flat roofs are always built at a slight incline at least 1 8 inch per foot. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. Government accredited details developed by bre for local government search. Flat roof detail masonry cavity wall flat roof insulation above and between joists.

Flat roof joist and decking 3 10. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. Some roofs actually slope in several directions ensuring optimal water runoff. When framing a flat roof you will need to create a slight incline.

Parapet detail joists perpendicular 3 13. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. Dormer in section 3 11. Roof panels 3 8 1 roof panel connections 3 9.

Parapet detail joists parallel details in section 4. This will help you create a flat roof framing plan. You can do this with a foam layer that exactly fits your roof. Harmony timber are manufacturers of timber frame roof truss kits and open metal web joists based in county wicklow ireland.

Timber frame flat roof detail. Timber frame flat roof detail.