How To Add 2 X 4 To Attic Rafters

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.

Upper bedrooms are made up of about a 24 inch high exterior wall then vaulted ceiling. To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch. Anyhow they currently have batts of fiberglass between them which is in co. The live loads a truss is required to bear are determined by local building codes.

So if your rafters are only 5 1 2 deep that is all the space you have for insulation. How to increase the interior ceiling joist for r38 insulation. Gluing and screwing a 3 4 attic subfloor and providing solid bridging should also be considered. Adding a 2 x 4 along the bottom chord of the 2 x 6 ceiling floor joist maybe helpful in stiffening the joist as well.

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. An attic conversion is a great way. 1 1 2 story house built in 1904 i think. 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.

Use cleats the same length as the width of the new rafter when added to the width of the old rafter. It is possible however to add pieces of wood onto the rafters to fur them out to allow for more 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. Once you ve marked the lines use your pencil to draw the diagonal length on the.

When installing 2 by 4 lumber to existing 2 by 6 rafters add the 2 by 4 width which is 3 1 2 inches to the 2 by 6 width which is 5 1 2 inches for a total of 9 inches. Attach 1 2 inch wood cleats to both sides of the existing rafter. I thought the rafters were 2x6 s but they are 2x4 s.