Green Homes News

Any experience with Stiebel Eltron heat pump water heaters

Green Homes 2 - Tue, 2022-03-15 06:31
After researching and reading all I can find on the Hybrid Heat Pump water heater products I'm very wary of installing one due to the excessive noise issues detailed here…
Categories: Green Homes

Building a heated floor over slab next to unheated area of slab

Green Homes 2 - Tue, 2022-03-15 05:12
We're renovating a 25 x 40 building with unheated slab in northern Vermont.  The slab is mostly below grade.  We plan to build a floor above the slab and install…
Categories: Green Homes

Financing for Energy-Efficiency Upgrades

Green Homes 2 - Tue, 2022-03-15 02:00
Two programs, although not available in every state, help homeowners pay for ugrades while lowering monthly energy bills
Categories: Green Homes

Substitute for ZIP R

Green Homes 2 - Mon, 2022-03-14 15:39
I'm working on a project of several structures in climate zone 7 where ZIP R-6 has been installed on everything enclosed currently - however the builder is having trouble sourcing…
Categories: Green Homes

Arnold Arboretum Research Talk

Green Homes - Mon, 2022-03-14 10:10
Location: Zoom

Anna Feller, the Swiss National Science Foundation Postdoctoral Fellow in the Hopkins Lab at Harvard University, will present "On the Genetic Architecture of an Adaptive Radiation."... Read more about Arnold Arboretum Research Talk

Categories: Green Homes

Ice Dams In New Construction

Green Homes 2 - Mon, 2022-03-14 09:37
I am in the process of building a house. The house is insulated to R49 in the attic (was just insulated and inspected), I also inspected the ventilation and based…
Categories: Green Homes

Why no insulation on exterior of above grade frost wall?

Green Homes 2 - Mon, 2022-03-14 08:14
Hello all,I am building a timber frame house in central Maine (climate 6A). My building site is well drained, sandy soil and almost perfectly level. I am hoping to use…
Categories: Green Homes

floor assembly on piers

Green Homes 2 - Mon, 2022-03-14 07:21
Hi,I'm looking for advice to fix my cold floor on piers. We're in zone 4a.Current assembly is: carpet, pad, 3/4" plywood, 9- 1/2" TJI 16" OC, fiberglass batt, 5/16" fiber…
Categories: Green Homes

To much insulation?

Green Homes 2 - Mon, 2022-03-14 02:07
I am having a house built in Eastern part of Virginia.  Due to severe mold sensitivity I specified certain materials mainly Rockwoolinsulation plaster walls and ZIP sheathing.  I ended up…
Categories: Green Homes

Replacing the Heating System in an Old House

Green Homes 2 - Mon, 2022-03-14 02:00
Steam radiators and spotty insulation make for a challenging HVAC problem
Categories: Green Homes

Sizing heat-pump for the room its in or the adjacent room also?

Green Homes 2 - Sun, 2022-03-13 16:31
I'm wondering if there is wisdom in sizing a ductless heat pump for the 'load' from an adjacent room or for the room only.This is an addition with 3 exterior…
Categories: Green Homes

Increasing Roof Pitch With Second Roof Deck Over Existing Rafters

Green Homes 2 - Sun, 2022-03-13 15:31
Hi,I have a late 70's home with 2x6 raftered ceilings.  The roof has ridge vent, but there is fiberglass batt completely filling the rafter bays.  The pitch is 2.25/12.  I…
Categories: Green Homes

US to supply Europe with “Heat Pumps for Peace and Freedom”?

Green Homes 2 - Sun, 2022-03-13 14:02
The article "Heat Pumps for Peace and Freedom" argues that the US should make heat pumps for Europe, anyone want to weigh in on pros/cons?  Seems like the basic premise…
Categories: Green Homes

Where to Buy a Single-unit Passive House Glass Entry Door in the US

Green Homes 2 - Sun, 2022-03-13 13:40
I'm trying to find a way to find a single entry door to replace an existing door in my home in southern California with a nice passive house door but…
Categories: Green Homes

Zone 5A Basement Insulation/Sealing Retrofit Question

Green Homes 2 - Sun, 2022-03-13 13:23
Hi there,I realize that insulating and sealing is a topic that has been written about extensively - both in articles and in the Q&A.  The wealth of information might be…
Categories: Green Homes

Mold in poured concrete lower level of new house

Green Homes 2 - Sun, 2022-03-13 08:32
A couple of weeks ago we noticed significant mold on the ceiling and concrete walls of the wine room of our new house (Moved in 18 months ago, concrete walls…
Categories: Green Homes

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