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0 Answers

Curious on thoughts about insulation on a new house.

Will be building a house in southern ontario, cold in the winter hot in the summer. Been reading up on insulation techniques, as i like the idea of thermal bridging but hate the idea of trapping moisture in the walls as i have seen some ugly things over the years in renovations and what moisture can do. Im unwilling to put foam board on the outside and vapor barrier on the inside. Just seems wrong. So here is my thought. Build the walls, apply a one inch foam straight to the studs with a layer of plywood fastened overtop with tyvek.

Asked By user-6782048 | Jul 25 17
20 Answers

Need ventilation suggestions for remodeled office - it's too tight!

Hi all -

I've successfully converted my residential 20x20 garage into a beautiful office and photo/video studio. It's beautiful and I'm very happy except for one thing: lot's of off-gassing, VOCs, and chemical smell. I've had the windows open for most of the last year and still if I close them, the odors build up over a few hours. Air testing shows high levels of VOCs, and detectable formaldehyde - likely from the spray foam or polyspartic floor covering but hard to say.

Asked By Dave H | Jul 17 17
6 Answers

Furring down from trusses

I just received the engineering for my truss system and see that where I want to fur the 5 in 12 scissor trusses down with a 2x6 (so that I can insulate the attic out to the ext. walls), the notes say, "This truss design requires that a minimum of ½" gypsum sheetrock be applied directly to the bottom chord."
Trusses NOT over the vaulted great room spec "rigid ceiling directly applied or 6-0-0 oc bracing." Bracing is allowed in lieu of rigid ceiling elsewhere in the house.

Asked By Mark Walker | Jul 24 17
2 Answers

Walls and floor for one piece shower?


I have a one piece shower I just bought and am going to install it myself. I have never done so and am looking for a guide or advice on the best practice to make sure:

1) No leaks or water damage
2) Shower is properly stabilized

My first question is what materiel I should be using for the framed in walls around the shower? Can it just be directly against my studs or should I put up some mold free plywood/material first?

Asked By MichaelBa | Jul 23 17
3 Answers

How best to handle wet garage wall ?

I have a free standing garage that has poured concrete walls. The garage is built into a steep hill side that opposes the back of the garage and one side. I intend to convert the garage to a wood shop where I will store lumbar so I am trying to mitigate moisture issues. The garage has a new roof and interior spray foam in the rafter bays. My problem is that an area about one foot wide on the floor adjacent to the back and the hill side wall stays damp and the lower portion of the same two walls is damp for about 18 inches in height.

Asked By W. Timothy Ward | Jul 23 17
2 Answers

New bath fan vent placement - seeking advice

We have a first floor bathroom on the home's gable end that currently lacks a vent fan. I plan on installing one next weekend, but am seeking advice on the fan's exterior vent placement.

I think I have two options:

1) installing a ceiling fan and running a 12-ft rigid pipe through/parallel with the floor joists and out the back end's vinyl siding. This places the exhaust vent ~10-ft below my attic's soffit vents.

2) installing a thru-wall fan through exterior brick.

Asked By hankla.lzo | Jul 24 17
5 Answers

Foil faced rigid insulation

I am in mixed-humid (Zone 3A).

I plan to use foil faced roof sheathing in my vented attic as a radiant barrier and was wondering about the efficacy of foil faced rigid insulation on my exterior walls facing the air gap to the siding (brick, stone and plank). Given my climate, any wall moisture will typically dry to the interior, so it would seem the reduced permeability of the foil facing would not be an issue.

From inside out:
• Latex paint
• Drywall

Asked By pnjfksx | Jul 22 17
0 Answers

Accessing a concealed duct unit

My HVAC contractor will be installing a Fujitsu 9RLFCD and a 12RLFCD. Each of the slim duct units will share space in closets and hang vertically. I don't have a utility room for them to be exposed in.
Now I need an idea on how to conceal the slim ducts but still make them accessible.
Do they need ready access like a breaker panel or can all the seasonal coats be hung in front of them? Are there pre-made access panels for sale?
What is a "good practice" for finishing these off? Any pictures?

Asked By Mark Walker | Jul 22 17
2 Answers

Naive question on LEED certification


Asked By Brian Gray | Jul 21 17
0 Answers

HVAC question


We are building an energy efficient 2700 sq foot ranch, open concept. We live in Wisconsin and leave the windows closed year round due to allergies. So, the AC or Heat is normally running.

It has been suggested that I get an HRV. It has also been suggested that I get a whole house air purifier. Do I need both? Or maybe just and HRV and 4' media filter?

For the HRV, I have seen Lifebreath or Zehnder? Either one better, or other brands to consider?

My builder is not familiar with these specific types of products.

Thanks in advance for any help!


Asked By jabehling | Jul 21 17
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