Roof insulation for 1 1 2 story homes a home where you have living space in the attic is typically installed in the rafter spaces.
How to add 2 x 4 to attic rafters.
An attic conversion is a great way.
Anyhow they currently have batts of fiberglass between them which is in co.
Use cleats the same length as the width of the new rafter when added to the width of the old rafter.
If the bottom chord of a roof truss functions as a floor joist such as in an attic room it carries a live load that also varies by use but a typical live floor load for a residential space is about 40 pounds per square foot.
Attics are fresh air ventilated so provisions must be made to reroute the attic s ventilation through the rafter spaces and the rafters must then be insulated.
Upper bedrooms are made up of about a 24 inch high exterior wall then vaulted ceiling.
So if your rafters are only 5 1 2 deep that is all the space you have for insulation.
It is possible however to add pieces of wood onto the rafters to fur them out to allow for more insulation.
Ceiling joists are the horizontal boards that span the width of the house resting on the outer wall plates and possibly on.
1 1 2 story house built in 1904 i think.
I thought the rafters were 2x6 s but they are 2x4 s.
Next set the framing square on top of the rafter beam and use a pencil to trace the outside edge of the framing square s tongue.
Attach 1 2 inch wood cleats to both sides of the existing rafter.
How to increase the interior ceiling joist for r38 insulation.
I need to add a 2 6 edge edge to my current 2 6 rafters to accommodate r 38 or better insulation in my attic ceiling that will be finished with sheetrock after insulation.
Gluing and screwing a 3 4 attic subfloor and providing solid bridging should also be considered.
The live loads a truss is required to bear are determined by local building codes.
To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch.
There are a myriad of ways to do this from what i see and my question is around a good fastening methods.