Flat Roof With Overhangdetails

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.

Flat roof with overhangdetails.

If the wind is. Other roof protrustions sothat notiiing obstructs tiieflow ofair from eave to ridge. Metal roofing can be used on any pitch or slope of roof. To these roofs and adjacent wood construc tion.

The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. Corrugated panels are more prone to bend under heavy snow loads. Roof overhangs at the eaves and rakes protect the walls below from rain and sun. Metal panels untreated wood panels and vinyl attic vents figure 1.

But are they really necessary. 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. Chapter 9 2 wood. Overhangs are common in most house designs providing protection against both wind and rain.

You will also incur additional costs because. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. The tradeoff between solar heat gain and shading. 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.

The national roofing contractors association recommends structural panels for flat or low slope roofs but corrugated panels are used in some areas with no heavy snow. Soffits are commonly constructed from fiber cement panels metal panels stucco vinyl panels or wood sheathing. For homes built in the northern hemisphere i e. The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope.

Figures 9 7 and 9 8 show some conditions commonly encountered. For example 4 12 pitch means 4 inches of rise in 12 inches of run. The exposed timber rafters and decking are susceptible to ignition and embers and hot gases can enter the attic through.