DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   Building & Construction (
-   -   Insulating under extruded windows (

rookie50 12-07-2006 01:35 PM

Insulating under extruded windows
Hi I've got two areas that are cantelevered out of two rooms about two feet by 9 feet. The floor joist are 2x12 and the underneath is just covered with vinyl siding on the outside.You can access this area from the basement where bat insulation is in place.Problem is there is air leakage entering this space and the floor above(hardwood) gets quite cold even though there is a floor register right under the window.Would removing the bat insulation and having soft foam sprayed in to fill the cavities work?This would be about twenty cu.ft of foam per window.

redline 12-07-2006 04:56 PM

to clarify-

is there currently insulation under the extended area?

rookie50 12-07-2006 05:54 PM


Originally Posted by redline (Post 26246)
to clarify-

is there currently insulation under the extended area?

Yes there is some fiberglass insulation and some tar paper acting as a vapour barrier but the tar paper isn't really properly installed and the cavity is about half filled with the fiberglass insulation. You can feel the air penetration when there is any wind blowing outside.

All times are GMT -5. The time now is 09:12 PM.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.