Flat Roof With Overhangdetails

For example 4 12 pitch means 4 inches of rise in 12 inches of run.

Flat roof with overhangdetails.

Roof overhangs at the eaves and rakes protect the walls below from rain and sun. Overhangs are common in most house designs providing protection against both wind and rain. To these roofs and adjacent wood construc tion. The exposed timber rafters and decking are susceptible to ignition and embers and hot gases can enter the attic through.

Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. For homes built in the northern hemisphere i e. Corrugated panels are more prone to bend under heavy snow loads. If the wind is.

The siding underneath the overhang is known as the soffit. With composite siding such as boral s truexterior siding over a ventilated rain screen and with properly executed flashing at the windows and doors the walls on the fhb house will be able to handle rain just fine. America and canada the most important windows and doors to keep in mind for any roof strategy are the south windows. Figures 9 7 and 9 8 show some conditions commonly encountered.

Metal panels untreated wood panels and vinyl attic vents figure 1. Soffits are commonly constructed from fiber cement panels metal panels stucco vinyl panels or wood sheathing. But are they really necessary. Metal roofing can be used on any pitch or slope of roof.

The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope. Cold roof insulation between rafters wnapor barrier on warm side below orw sheatiiing roofing roofing 2 x 8 sleepers notched for vent aligned wi rafters flashing over rooang fascia sheatiiing 2 x 4 sleepers aligned w rafters provide. The tradeoff between solar heat gain and shading. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases.

Other roof protrustions sothat notiiing obstructs tiieflow ofair from eave to ridge. You will also incur additional costs because. The membrane proper must be kept in an unbroached condition with all edge conditions either above scupper or drain height until water runoff is complete.