Timber Flat Roof Detail Section

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

Timber flat roof detail section.

Timber in the form of rough sawn or planedboards or planks can be used as the loadbearing deck to a flat roof fig. The flat roof covering can also be epdm. 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. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls.

Today flat roofs are used by architects for the same reasons that they became a cornerstone of modernist architecture. Dormer in perspective view 3 12. The construction of the flat roof is similar to that of the timber upper floor. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.

This flat roof covering can be roofing felt usually 3 layers with a mineral chipping topping to soak up the heat of the sun which protects the felt from both melting and breakdown under uv rays. Ventilated batten void warm roof gable 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. Contemporary designers frequently aim to produce the same clear and simplified forms that appeared at the beginning of the 20th century but are now free to use a wide range of new materials and construction techniques that reflect present day technology. Roof panels 3 8 1 roof panel connections 3 9.

Parapet detail joists parallel details in section 4. From there the flat roof system you choose will determine the materials you apply. 24 mm 20 and should have. Dormer in section 3 11.

Having a manual for warm flat roof construction with details and a summary of rules to follow helps. 3 05 timber frame pitched roof. Boardsmust have a nominal thickness of min. Intermediate floor joist parallel 4 3.

Flat roof joist and decking 3 10. This ethylene propylene diene monomer rubber covering is very versatile long lasting and very strong.