Knee Wall Roof Angle

It has a gable roof with a steep pitch that allows one to walk into the area.

Knee wall roof angle.

Attic floors unconditioned attics. The knee wall will be built on the floor of the attic and then tipped into place against the rafters. An attic knee wall is a short wall that extends from the floor of an attic room to the roof rafters. I have a project i am currently working on that involves over framing a new gable roof on top of an existing shed roof.

4 0104 1 knee wall dense packing topic. Subtopic 4 0104 attic knee walls. In his book a visual dictionary of architecture francis d. This will be the overall length of the stud.

Determine the angle of rafters by setting the scrap piece of 2x4 in a vertical position against the side of a rafter. Scribe a line on your scrap piece along the angle formed by the rafter. Pick a location and measure from the top of the bottom plate to the point on the bottom of the top plate where the top of the stud will hit. A knee wall is a short wall typically under three feet one metre in height used to support the rafters in timber roof construction.

The knee wall is probably around 8 or so in from the ends of the building. Mark off the stud locations for you knee wall. Basically we would like to frame some angled knee walls on the shed gables then frame a new roof on those walls. Ching defines a knee wall as a short wall supporting rafters at some intermediate position along their length the knee wall provides support to rafters which therefore need not be large enough.

Unlike other kinds of knee walls this kind of wall extends all the way to the rafters but because of the slope of the roof. In other words it s usually a short wall standing perpendicular to a sloped roof and is usually added as support. The knee wall in an attic drops. The idea is to not have to remove the shed roof so as to not make a mess of the interior.

One of your 2x4s will act as the bottom of your wall and will not be cut. Now slide your square up against the bottom plate and use your bevel gauge to get the angle. We then pocket holed the bottom of the studs to the 2x4 on the floor. In architectural terms a knee wall is the flat plane formed when a sloping surface typically the roof plane of a building intersects with the wall at a point that is lower than the normal ceiling height.

The knee wall forms the wall of the attic room and it also creates an enclosed space under the eaves behind the wall. You can use an angle finder to find your roof pitch or make a pattern and translate that to your miter saw.