money out the window

R-Value and Drape Insulation

In the last week I have had several requests to add lining to existing drapes. For those of you who have been thinking about it but need a bit more information, here is a brief summary of the infomercial I presented at the Shuswap Women in Business meeting last month. Hunter Douglas, one of the largest manufacturers of window coverings suggests that up to 25% of our annual heating bills go out the windows. They have produced a variation on the honeycomb shade, the Architella with an R value of 7.7. So what is R-Value anyway? R is a measure of resistance to heat transfer. R-Value is not the best way to measure a window’s heat loss protection value but it is the most common. (U value is the insulation rating for transparent objects.) A home with 4” studs must have R-12 insulation. If you have a double insulating glass READ MORE