C Attic Gable End Wall Sheathing Be Made Of Styrofoam

So companies like norbord started creating tallwall windstorm panels to help alleviate this.

C attic gable end wall sheathing be made of styrofoam.

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. Install r13 in walls and insulate garage door. 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. 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.

Gable end walls and the roof sheathing at the gable end can take a tremendous beating during a hurricane and if not properly attached and braced they fail and cause catastrophic damage to your home. And of course a bathroom with a window doesn t require an exhaust vent. For more information on gable end frame bracing see the following. In some cases the expected loads will be too high for the gable end frame end wall studs or ceiling diaphragm.

Install soffits along under each side of roof eave. I d prefer to see a rigid material on attic kneewalls figures 8 and 9. 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. Here is how to insulate an unfinished attic.

Install rafter baffles in each rafter cavity. I know not ideal but has to help and make some noticeable difference. Install r13 insulation in the rafters on top rafter baffles. A house protected by solarbord radiant barrier sheathing has a head start on comfort.

Here are the three keys to sheathing an attic kneewall properly. An exhaust vent fan can exhaust out through a gable end side wall or out through a soffit overhang. For the gable ends i may use both methods mentioned. Both can be done poorly of course and i ve seen both done poorly.

3 4 t g osb flooring will cover the floor. This means the rest of the house will be cooler too. This will allow me to rigid foam block the joist ends right up to the knee wall sheathing and seal with dow pro foam. Up to 97 of radiant heat from the sun is reflected by solarbord so the attic can be up to 30 cooler.

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. I think the rigid material will do a better job with air sealing though and will stay intact longer. If so the building designer might design a balloon framed end wall which eliminates the need for a gable end truss. I was considering sheathing attic side knee walls with either thermo ply red or xps foam.

Cover the whole wall. Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve your mobility in the attic. Never step between joists as you may break through the ceiling below make sure there are no uncovered electrical boxes or exposed wirings. I will extend this roxul to the attic side of the knee wall studs.

Install gable vents on each end of garage.