At the bottom points of the triangles the rafters meet the top plates of the exterior walls.
Walls in attic.
But they are awfully good to have.
Use r 30 insulation for the ceiling and r 13 for the walls.
If your attic space is framed with rafters and is unfinished it has a triangular shape.
Your attic wall will not be a supporting wall.
Don t mash or compress the insulation into the space.
Two by four lumber is standard for framing most walls including short walls in the attic.
An attic wall needs to be located near the joists and studs so it can be held in place properly.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Framing basics for attic knee walls along the sides of your loft or attic space.
Purchase enough to install a stud on each end of the wall and every 16.
Support and follow me.
Knee walls are not found in all attics and they are not absolutely necessary.
Tools materials and supplies.
Staple insulation between the wall studs and ceiling joists image a.
Carefully measure where each of the new wall studs will go and mark the locations with perpendicular lines across the plates.