David Douglass
  • North Yarmouth, ME
  • United States
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Enclosed Attic Insulation - Uncover or not?
6 Replies

I am working on a 1950's colonial with attic insulation consisting of 2"x6" joists filled with loose fill fiberglass. The fiberglass is covered by 1" x 6" decking with 1/4" between the boards. I am…Continue

Started this discussion. Last reply by Tom Lewis Mar 19, 2011.

 

David Douglass's Page

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David Douglass replied to Caroline Hawkins's discussion Target Market in the group Marketing Energy Efficiency
"I consider my market anyone that spends more than $1500/yr on energy. I try to write different messages to get different segments to respond. I recently mailed 1000 flyers to home owners living in buildings with 2-4 units. I used "Can't…"
Apr 27, 2011
David Douglass joined James Sayers's group
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Marketing Energy Efficiency

Sharing ideas, tools and examples of promoting energy efficiency to consumersSee More
Apr 27, 2011
Tom Lewis replied to David Douglass's discussion Enclosed Attic Insulation - Uncover or not?
"Your last two statements, "The upfront cost of retrofits is a big barrier to comprehensive weatherization. Anything I can do to reduce the cost of installation will help," are compelling. You need a solution that makes sense, given the…"
Mar 19, 2011
David Douglass updated their profile
Mar 17, 2011
B Eric Bell replied to David Douglass's discussion Enclosed Attic Insulation - Uncover or not?
"In order to do make a substantial difference in the air sealing of your home (this is possible!) you have got to be able to access the ceiling and do some caulking, foaming and rigid batting of air leaks.  While I feel for you and all the work…"
Mar 17, 2011
Kris Grube replied to David Douglass's discussion Enclosed Attic Insulation - Uncover or not?
"This seems to come up often, especially when customers want to keep the floor boards in place for storage.  Best solution would be to remove floor boards, allowing for proper air sealing and achieve a minimum of R-38.  Another option is to…"
Mar 17, 2011
marshall minshew replied to David Douglass's discussion Enclosed Attic Insulation - Uncover or not?
"Just adding cellulose insulation will not improve your air barrier.  I would recommend removing the floor boards, spot air-sealing with foam (and rigid if necessary) at bypasses, etc. and installing new cellulose or FG.  I would not…"
Mar 9, 2011
David Meiland replied to David Douglass's discussion Enclosed Attic Insulation - Uncover or not?
"Best case is that you remove the boards and the existing insulation completely before doing air sealing--the loose FG has only marginal value, an inch of cellulose almost none. Ideally you are going to install 16-18" of insulation, so the…"
Mar 7, 2011
Tom replied to David Douglass's discussion Enclosed Attic Insulation - Uncover or not?
"Thanks for asking this question - I've actually been wondering the same thing for personal use. I hadn't thought of the every-third-board idea (seems a good thought), but was instead pondering how far sideways I could shoot sprayfoam (the…"
Mar 7, 2011
David Douglass posted a discussion

Enclosed Attic Insulation - Uncover or not?

I am working on a 1950's colonial with attic insulation consisting of 2"x6" joists filled with loose fill fiberglass. The fiberglass is covered by 1" x 6" decking with 1/4" between the boards. I am recommending adding cellulose to improve the air barrier and insulate. My question is whether I can get away with not removing the old boards, or maybe removing every third one? How much area is needed to ensure moisture can dry to the outside? It should not get damp because of proper ventilation.The…See More
Mar 7, 2011
David Douglass is now a member of Home Energy Pros
Nov 4, 2010

Profile Information

Company
Maine Home Energy
Professional Certification
BPI Building Analyst
Professional Interests
Economics and Personal Finance of Energy Efficiency
Website URL
http://www.mainehomeenergy.com

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