No Insulation Under Bay Window

My wife and i recently bought a rental property with a cantilevered bay window.

No insulation under bay window.

I recently found the styrofoam under the bay was only press fit in some areas no fasteners held up by a friction fit on the back side of the lap siding. To be used under bay window. For this particular project dr. This could be either polyurethane which i have lots of good personal experience with or icynene which i m still learning about.

What walls needs insulation. 50 mm celotex bonded to plaster board. Either way filling the floor cavity with spray foam delivers excellent thermal insulation while also keeping drafts out of your bay window area. Celotex pl4050 is a thermal insulated plaster board.

The house was built in 1943 and had no insulation under the bay. The rim joist under the window appears to have only the 1 8 green foam vinyl and lap siding covering it no other insulation. V 4500 series tan vinyl bay window model thdjw139600067 1 401. Consumes 2 to 3 times more energy than needed mainly because of insufficient insu.

Energy saver chose to insulate the bay window sill with silverglo rigid foam board insulation. If there will be a short wall down to the ground pour a small concrete pad and add matching framing on the pad. Bore holes in the plywood so you can tighten the cable nuts later if needed. Set your store to see local availability compare.

Attach the framing to the underside of the window using screws. Buy this item from amazon uk. Cut a piece of plywood to cover the bottom. Most people only insulate under the bay window.

A cold window in a warm room creates a convective loop which in turn contributes to even greater discomfort. I was able to put at least 4 inches of xps and sometimes 6 inches under each section of the bay. Side walls also need insulating if no cavity exists. I could lie under the bay and see the subfloor in the diagonal portions of the bay.

This high performance thermal insulation board has 50mm of pir insulation bonded to 12 5mm tapered edge plasterboard.