Two by four lumber is standard for framing most walls including short walls in the attic.
Walls in attic.
It will not bear any loads.
But they are awfully good to have.
It needs a certain amount of loft to work properly.
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.
Tools materials and supplies.
Don t mash or compress the insulation into the space.
Carefully measure where each of the new wall studs will go and mark the locations with perpendicular lines across the plates.
Your attic wall will not be a supporting wall.
Knee walls are not found in all attics and they are not absolutely necessary.
An attic wall needs to be located near the joists and studs so it can be held in place properly.
Use r 30 insulation for the ceiling and r 13 for the walls.
Purchase enough to install a stud on each end of the wall and every 16.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Staple insulation between the wall studs and ceiling joists image a.
Support and follow me.
At the bottom points of the triangles the rafters meet the top plates of the exterior walls.