View Single Post
Old 10-22-12, 03:21 PM   #87
S-F
You Ain't Me
 
S-F's Avatar
 
Join Date: Nov 2009
Location: Northampton MA
Posts: 662
Thanks: 6
Thanked 71 Times in 58 Posts
Default

Daox, what made you decide on 10" as opposed to 12"? The reason so many people use 12" walls is that it seems to be a good break even point for wall vs. window R value. Much more doesn't accomplish a whole lot with regular (Good) windows on a manual J or PHPP. You have broken the bank with the Serious (ly expensive) windows.

I just got estimates on Marvin integrity fiberglass 3 pane windows for my house and the ROI was over 100 years as opposed tot he vinyl replacements I already have. They need to go because they condense moisture. The ROI for replacing them with double pane Marvin Integrity casements is closer to 70 years but the comfort value is immediate upon replacement and very real.
__________________
My project:


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


Chipping away on a daily basis.

Quote:
You know you're an ecorenovator if anything worth insulating is worth superinsulating.
Quote:
S-F: "What happens when you slam the door on a really tight house? Do the basement windows blow out?"

Green Building Guru: "You can't slam the door on a really tight house. You have to work to pull it shut."
S-F is offline   Reply With Quote