Roof System Cross Section

A disadvantage of the hip roof is that it is more difficult to construct than a gable roof.

Roof system cross section.

In most truss members only flexural buckling of the compressed members in the plane of the truss structure and out of the plane of the truss structure need be. These hip rafters run at a 45 angle from each corner of the building to the ridge. Roof system cross section mechanically fastened cover board and adhered insulation with vapor barrier ftr das17sp pdf dwg. Roof system cross section mechanically fastened cover board and adhered insulation with vapor barrier ftr das12sp.

A roof system should be selected that optimally responds to an integration of the project s requirements and the system selection criteria. Roof section details free autocad drawings. Folded ridge ventilating ridge detail at eaves external gutter valley details detail at gable barge board. Local buckling of the section is controlled using section classification.

The blue pieces are roll formed metal roof battens or purlins. Intersecting the intersecting roof consists of a gable. Buckling of the member is controlled by applying a reduction factor to the resistance of the cross section. This roof is built with purpose made steel hook bracket which is bolted to the truss with m16 bolt.

Cam plants are called cam plants because they possess a specific form of metabolism called crassulacean acid metabolism. Green roof plants cam photosynthesis minimizes drought effects in prior columns we discussed how some cold tender cam plants such as many of the succulents can be damaged by freezing temperatures. The hip roof has four sloping sides. A more traditional planted roof of built up layers is also common but the tray system offers much more flexibility and comes pre planted with mature specimens.

The regulations state that all roofs must be cross ventilated at eaves level by permanent vents and these must have an equivalent area equal to a continuous gap along both sides. Extensive systems weigh anywhere from 10 to 25 pounds per square foot when dry which is why the interlocking system of trays is important otherwise strong winds could very easily. The bracket is bolted to an m16 bolt cast in situ embedded 300 mm 12 in into the reinforced concrete block wall. It is the strongest type of roof because it is braced by four hip rafters.

Roof ventilation is essential to reduce the likelihood of condensation within the roof space as required by the building regs 1985. Roof detail drawings in an autocad format. Insulated roof and non insulated roof detail drawings. Like many aspects of a home a roof is fairly complex.