Now that the kneewall is.
Installing knee wall attic insulation.
This is not very easy in most of the older houses we work on because the hatches and attics are too small to get rigid foam board through.
Sheathe the kneewall during framing.
More details online 1.
Knee walls installing batt insulation.
The disadvantage is that it would be very very hard to reach the desired r value from r 49 to r 60 depending on climate for attic insulation.
Friction fit insulation between and parallel to the framing members in full contact with rigid backing top and bottom plates.
7 staple the edges of the facing into each of the studs.
There are as many ways to do it as there are people who do it.
The advantage here is that your knee wall is probably already insulated this way so it s just a matter of buying some foam so cheap.
Keep the attic outside insulating a kneewall and the attic floor behind the kneewall is possible but tricky.
Cover the whole wall.
Bring the attic inside insulating between the rafters simplifies the air sealing details.
Insulating and air sealing knee walls unvented version.
Verify insulation material is the correct width and r value.
Verify that top bottom plates and a fire rated rigid backing have been installed.
Insert each strip of faced insulation between the studs in the knee wall with the facing directed toward the living space of the attic.