Green Homes News

Inward Vapour Drive – Cold/Temperate Rainy Climate

Green Homes 2 - Fri, 2023-09-22 02:08
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Categories: Green Homes

Grilles, Registers, and Diffusers Part 3: Supply Air Outlets

Green Homes 2 - Fri, 2023-09-22 02:00
Properly sized and located supply outlets will maximize airflow and contribute to an HVAC system's longevity
Categories: Green Homes

Internally insulating log cabin – ventilation in residual cavity

Green Homes 2 - Thu, 2023-09-21 23:01
Hi everyone. We live in an old log cabin in Central Sweden (Dalarna). So climate is long, cold, dry winters (down to -20 celcius snow on the ground from November…
Categories: Green Homes

Open cell spray foam concern

Green Homes 2 - Thu, 2023-09-21 20:45
It is sept 2023. In late may 2023 we had open cell spray foam installed through an energy rebate. We had it installed on roof deck/rafters. The floor has some…
Categories: Green Homes

Hot Water Tank Install

Green Homes 2 - Thu, 2023-09-21 20:39
I am about to install a AO Smith hybrid hot water heater. It has water connections on the top and the side. I assume an internal pipe takes the cold…
Categories: Green Homes

Jacking up 1950’s sill plate to add capillary break

Green Homes 2 - Thu, 2023-09-21 18:27
After seeing a few posts on here suggesting adding a capillary break before insulating rim joists, I would like to do that on my 1958 house.  However, I do not…
Categories: Green Homes

Should I install a poly barrier in zone 6?

Green Homes 2 - Thu, 2023-09-21 12:27
My situation is such that I am building a little cabin in zone 6. Almost 2 years ago, we didn't know all the information and built a t111 siding, tyvek…
Categories: Green Homes

.16″ (40 Pa) external static pressure for a 3/4 T concealed ducted AH ?

Green Homes 2 - Thu, 2023-09-21 11:00
I finally received a reasonable quote for my proposed compact ducted mini split system. However, I look at the specs and the proposed 3/4 T Bosch climate 5000 compact ducted…
Categories: Green Homes

Skinny Bonfiglioli Retrofit in 2×4 Wall

Green Homes 2 - Thu, 2023-09-21 10:40
Here's the situation. I'm renovating an old house in Climate Zone 6 (boarding zone 5) with the following existing wall assembly (from the outside in).1. Vinyl siding2. 1/4" foam board…
Categories: Green Homes

Unvented Tin Roof with Titanium PSU underlayment

Green Homes 2 - Thu, 2023-09-21 10:30
I have a few questions regarding my roof system. I am in climate zone 6. The current status is that the roof underlay is in place but there have been…
Categories: Green Homes

Air Quality – best approach?

Green Homes 2 - Thu, 2023-09-21 10:06
Hey everyone,I recently moved into a 1960s home (location Toronto/Canada), that has had air sealing done to it in the past. The blower door test came back at 4 ACH…
Categories: Green Homes

Sustainable Development and Challenges of the COPs

Green Homes - Thu, 2023-09-21 10:00
Location: W-434 A&B, Wexner Building, HKS, 79 JFK St., Cambridge

Join DRCLAS for a broad discussion with Izabella Teixeira on topics such as the challenges and opportunities of the United Nations Conference of the Parties (COPs) meetings for climate and biodiversity, worldwide natural resource management, and Brazil’s potential for generating sustainable solutions.... Read more about Sustainable Development and Challenges of the COPs

Categories: Green Homes

Lochinvar Combi-Boiler Missing Outdoor Air Sensor

Green Homes 2 - Thu, 2023-09-21 05:20
We had a Lochinvar - NKC199N (199,000 BTU) combi-boiler installed last fall. Our house is only 1,600 sq/ft and decently insulated so it seemed like overkill, but had to do…
Categories: Green Homes

Single vs two component foam for misc air sealing and insulation?

Green Homes 2 - Wed, 2023-09-20 20:38
I have a fairly messy band joist between my attached garage and house with joists from both sides coming through.  I was thinking to air seal and insulate it with…
Categories: Green Homes

Vertical siding, 1/2″ CDX nailing, and rain screens

Green Homes 2 - Wed, 2023-09-20 19:23
Hi All, Zone 5. Western Ma.  First time owner/builder, building my own house.  Budget is tight, skill set is limited.I have the house framed, and fully dried in. 1/2" CDX…
Categories: Green Homes

New addition without spray foam

Green Homes 2 - Wed, 2023-09-20 19:09
We are trying to finish up plans with our builder for a new 1500 sqft addition with a 1500 sqft basement.  I've been enjoying reading through many of the articles here to…
Categories: Green Homes

Replacing attic fiberglass with roxul

Green Homes 2 - Wed, 2023-09-20 18:32
Gable and roof vented Cape cod attic.Zone 4 SW MOI believe it's r19 between the ceiling joists with unfaced r30 rolled across it.I want to replace the r19 with r30…
Categories: Green Homes

Second Floor Deck Waterproofing

Green Homes 2 - Wed, 2023-09-20 17:45
We have framed a second floor deck above a patio out of beautiful locally sawn cedar joists and as per usual, it is framed level.  The client has now requested…
Categories: Green Homes

Overlay foam board to interior already cut and cobbled?

Green Homes 2 - Wed, 2023-09-20 17:12
SummaryCan I add 1/2 foam board insulation over an air tight cut and cobbled wall cavity with irregular depths? (pics attached)Specs- 7' x 10'- ceiling: vaulted, no ventilation, has 4…
Categories: Green Homes

Attic/Roof Venting and Insulation Options

Green Homes 2 - Wed, 2023-09-20 17:00
Hwody folks!  We are doing a project in Grass Valley, Ca, climate zone 9 I believe.  It is a single story house on a raised foundation with a large attic…
Categories: Green Homes

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