Energy efficiency and durability

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Polyurethane foam vs. Icynene foam: What's best for subfloor insulation? 6 1 day 14 hours ago
by rheems i
28 min 31 sec ago
by D Dorsett
ERV-Minisplit combo vs. Magic Box 4 20 hours 6 min ago
by Marcus de la fleur
1 hour 47 min ago
by Charlie Sullivan
1903 home, first time with central air, lots of questions about insulating, ductwork, etc 8 1 day 14 hours ago
by John Friend
17 hours 15 min ago
by Dana Dorsett
Will positive pressure work to vent an attic (i.e., blowing air in)? Attics exhaust fans are a bad idea. But what about blowing air in (using positive pressure). 9 3 years 49 weeks ago
by Erica Downs
2 days 22 hours ago
by Malcolm Taylor
I have a 1950 brick clad house and want to improve the wall insulation. 0 4 days 30 min ago
by Andrea Quimby
n/a
Ramblings on thermal mass, AC and window fans 20 2 weeks 3 days ago
by Alan B
4 days 13 hours ago
by Alan B
Insulating a sloped ceiling 1 4 days 19 hours ago
by frank mengler
4 days 19 hours ago
by Martin Holladay, GBA Advisor
Exterior and interior foundation insulation crossover 2 5 days 3 hours ago
by Chris King
5 days 1 hour ago
by Charlie Sullivan
Exterior foam over 2 layers of siding a bad idea? 1 5 days 15 hours ago
by TIM LANGE
5 days 4 hours ago
by Martin Holladay, GBA Advisor
What is the best way to attach the sub-slab vapor barrier to the walls? 10 6 days 15 hours ago
by Adam Peterson
5 days 20 hours ago
by Jim Tyler
Dehumidification vs. ventilation in an existing house 33 1 year 29 weeks ago
by Timothy Godshall
5 days 23 hours ago
by Martin Holladay, GBA Advisor
How to choose someone for an energy audit? 7 6 weeks 6 days ago
by Joe Watson
5 days 23 hours ago
by j pritzen
Open air returns in attic 2 6 days 20 hours ago
by Jim Bellar
6 days 19 hours ago
by Steve Knapp
Low-e storm window over low-e house window? 2 1 week 17 hours ago
by Chris Dunn
1 week 4 hours ago
by Martin Holladay, GBA Advisor
Should I tape my sheathing joints AND my rigid insulation joints? 7 1 week 2 days ago
by Julie Kardatzke
1 week 15 hours ago
by Julie Kardatzke
Blower door tests and Equivalent Leakage Area 8 1 week 1 day ago
by Ted Cummings
1 week 1 day ago
by andrew c
Unvented attic -- New roof, exploring options 8 1 week 3 days ago
by Ryan Holt
1 week 2 days ago
by Charlie Sullivan
Building wrap: under the exterior foam, or over? 3 2 weeks 1 day ago
by Steve Vigoren
1 week 3 days ago
by Joe Suhrada
How to determine COP for an ERV 0 1 week 3 days ago
by Venkat Y
n/a
How can I add insulation to an insulation-board sheathed building? 4 1 week 5 days ago
by Barbara Robertson
1 week 4 days ago
by Barbara Robertson
Insulating ceiling under a deck 2 1 week 5 days ago
by Meri Lewis
1 week 5 days ago
by Martin Holladay, GBA Advisor
2" or even 4" of foam on exterior of garage/workshop in zone 7 4 1 week 6 days ago
by tim brown
1 week 5 days ago
by Martin Holladay, GBA Advisor
What percentage improvement can I expect in my electric bill if I have spray foam insulation installed? 2 1 week 6 days ago
by Delilla Harts
1 week 6 days ago
by Dan Kolbert
How do I calculate the payback period for additional insulation? 3 2 weeks 14 hours ago
by Jeremy Turner
2 weeks 2 hours ago
by Charlie Sullivan
Is this a risky wall assembly? 13 46 weeks 5 days ago
by Jeremy Coenen
2 weeks 16 hours ago
by Charlie Sullivan
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