Insulate Under Bay Window Floor

And the farther a bay window protrudes from the house the more dramatic the effect and the more it opens a room.

Insulate under bay window floor.

The smooth surface between the floor joists is cardboard laying loose on top of the t g flooring. Consumes 2 to 3 times more energy than needed mainly because of insufficient insu. Also added 2 pics under the bay window showing the white vinyl siding 1 8 green foam sheet insulation brown lap siding heavily weathered white trim board and 1 2 white styrofoam. I have removed the plaster and lathe but now i have a question.

Bay windows are one of the more complicated window styles to install but their impact is well worth the effort. Side walls also need insulating if no cavity exists. This type of window protrudes from the house while also letting in lots of light. I ve written quite a few articles on how to insulate basement walls and floors but one more specific topic related to this subject keeps coming up and that s how to insulate a bay window floor or cantilever floor framing.

In addition to floors other cantilevered architectural features may require insulation. In this article i ll share a detail for new construction and also a detail for renovating existing bay window. Celotex pl4050 is a thermal insulated plaster board. To be used under bay window.

I am planning on insulating my 1st floor bay window using celotex or similar between the joints. Buy this item from amazon uk. Most people only insulate under the bay window. No vapour barrier is required and the foam blocks a considerable amount of sound transmission from the outdoors too.

They include bay windows greenhouse windows bow windows bump outs porches and balconies. Bay window and floor deck cantilever insulation details. If the floor is over a garage and has not already been insulated however it is recommended that each joist bay be filled with insulation. The void between the joints drops down below the floorboard level and seems to be a void until just above the ground floor window.