C Attic Gable End Wall Sheathing Be Made Of Styrofoam

Cooler attic cooler house.

C attic gable end wall sheathing be made of styrofoam.

Your house has a gable end if you have a sloped roof with a vertical wall that forms a triangle under the end of the roof. In some cases the expected loads will be too high for the gable end frame end wall studs or ceiling diaphragm. For the gable ends i may use both methods mentioned. Up to 97 of radiant heat from the sun is reflected by solarbord so the attic can be up to 30 cooler.

Web plane gable end frame bracing. Preparing an attic for insulation. This means the rest of the house will be cooler too. But the north wall is ripe for added depth as well as the south wall outside of the landing and perhaps the dormer walls too.

Install soffits along under each side of roof eave. Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve your mobility in the attic. Both can be done poorly of course and i ve seen both done poorly. I was considering sheathing attic side knee walls with either thermo ply red or xps foam.

Install gable vents on each end of garage. An exhaust vent fan can exhaust out through a gable end side wall or out through a soffit overhang. Install rafter baffles in each rafter cavity. For more information on gable end frame bracing see the following.

However your roofer is correct that bathroom exhaust venting is desirable to avoid indoor moisture problems that can extend to the attic roof sheathing and can affect roof. I think the rigid material will do a better job with air sealing though and will stay intact longer. I will extend this roxul to the attic side of the knee wall studs. I d prefer to see a rigid material on attic kneewalls figures 8 and 9.

If so the building designer might design a balloon framed end wall which eliminates the need for a gable end truss. 3 4 t g osb flooring will cover the floor. This will allow me to rigid foam block the joist ends right up to the knee wall sheathing and seal with dow pro foam. Install r13 insulation in the rafters on top rafter baffles.

Install r13 in walls and insulate garage door. And of course a bathroom with a window doesn t require an exhaust vent. Cover the whole wall. Here is how to insulate an unfinished attic.

I know not ideal but has to help and make some noticeable difference. A house protected by solarbord radiant barrier sheathing has a head start on comfort. The stairs come up to the south gable end with a landing of just 36 from nosing to framing so i don t know if i can get away with deepening the wall in that area. Here are the three keys to sheathing an attic kneewall properly.

The death of the 8 sheet one of the biggest items when sheathing a wall vertically is that the sheathing has to be continuous 602 10 4 5 which meant that an 8 sheet wouldn t cut it in many places so longer ones were required.