Green Homes News

From choosing products to their compatibility with other control layers to assemblies that work, take a deep dive into CEI

Question: should we have any insulation added when we replace our roof?We have an vented attic and a hip style roof with gabble vents. Contractor proposes Roof Ridge Exhaust Vent.…

I have a wall of windows in the back of the house that is very exposed to wind driven rain off the ocean here in Washington state. My second window…

Is anyone familiar with "Denny Board"? As far as I can tell the company that manufactured it is now defunct and I can't find any information on it. Closest match…

I'm trying to decide what style of Picture Frame to use on an upcoming external insulation project. This will have vertical furring to hold the 2 layers of GPS foam…

Hello, What do you think about using exterior Rockwool but then using plywood sheathing instead of strapping? This would create a Rockwool nail base. Innie and outtie windows seem like a…

I have a 24' x 35' attic that has roof going all the way to floor but with steep pitch. I have t&g ply for the floors, but I am…

I bought and am remodeling a house built in the 1920's with dirt floor vented crawlspace and an addition that was built in the 60's had to tear out and…

Hi all,We're in Zone 5, Northern California mountains, with very dry summers and variable-humidity winters (rain/snow raises humidity).We have a dirt crawlspace which we plan to put a vapor barrier…

I'm doing a ventilated deep rafter cathedral.The main path for any drying would be in the ventilated cavity.So is there a risk to coving the entire roof in ice shield?Or…

I am building a new house here in NW kansas (Zone 5a). My builder wants to do flash and batt Hybrid insulation on the 2x6 exterior walls. (Huntsman HFO PRO…

Meet high-performance energy efficiency goals by following the PGH approach to designing and building

what could be causing the drywall in  a small house with an ERV that is very tight to bow up between the ceiling joists ?

I have found quite a bit of info on FPSFs and there is always a concrete slab included. I'm wondering if I can pour a Frost-protected shallow footing without a…

Never terminate bathroom exhaust ducts in an attic, where added humidity can lead to mold issues and expensive repairs

Investing in sustainable home features can significantly increase the value of your property and simultaneously make your living environment more comfortable

I'm building a new house in the Dallas TX and I want to use a hybrid insulation strategy of poly-iso and mineral wool batts, but I'm struggling to understand the…

Someone posted here a few months ago a site where you could get 99th percentile dew point data. Now I can't find it.Does that rig any bells?

Hello,I have 2" RockWool exterior insulation, vertical furring strips, and horizontal furring strips and I will be using Hardie Panel on top of that. My windows are flanged and taped…

Hello everyone,Following the sage advice in this forum, I have done a number of green energy upgrades  to my house, including sealing the house really tightly, and switching my heating…