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33 Answers

Spray foam insulating

I have a home that is approx 800 sq ft in size not counting the attic.
I'd like to spray foam it.
It is about 70 years old built with 2x4's.
Crawl space, no bsmt.
A little over 8' walls on main floor ( 100")
I was planning on doing 3" of closed cell 2LB spray foam from a professional.
Also, as well in the rafters since it is a sloped roof but I'd like the attic finished since it is 7ft high, I would have some nice, temp regulated storage and I am planning to install the furnace there too.

I was then made aware of certain concerns.

Asked By mic l | Apr 16 16
11 Answers

Zone 7A existing cabin crawl space headaches

We recently purchased a existing seasonal lakefront cabin built in the 80s in northern MN. We are remodeling and converting to all-season occasional use and trying to address the vented crawl space. It is damp and there is some mold on floor joists, but I don't believe there has been standing water and the soil composition is sand. The problem is access: there is very low clearance in most areas (only 6-8" in some spots). Our contractor has proposed 1) adding rigid insulation to the perimeter block foundation, or 2) raising the cabin and adding two more rows of block.

Asked By Deb Edwards | Apr 13 16
13 Answers

Bathroom venting through soffit?

Martin, you have several times stated your strong preference that bathrooms be vented through the roof, and not through the soffit. I ask again because I am not sure your earlier remarks would apply in this case.

Asked By David McNeely | Apr 9 16
6 Answers

Virginia: High wind and rain lead to cathedral ceiling stains

I know, can lights are bad. Our builder was supposed to know better. We have 13! Ceiling stains occur even when we are away for a month or more. Obvious mistakes are ridge vents that allow rain to blow in, ridge only partly vented.

Asked By John Haskill | Apr 9 16
12 Answers

Mold and fire question

So I am having string of bad luck on my new home construction. Towards the end of the project it caught on fire which destroyed the roof. As part of the remediation they pulled the drywall and insulation off and I am greeted with more wonderful news, there is mold on the interior OSB.

Asked By D L | Mar 26 16
2 Answers

Replacing a wood deck with composite

When replacing a wooden deck with composite material there is usually a 1/2 inch discrepancy because the decking was 1 1/2 inches thick and the new composite is usually 1 inch thick. What migh tone use to handle this problem to enable the deck to end up at 1 1/2 inches thick again? Thanks

Asked By Kenneth Riedel | Apr 4 16
3 Answers

Brick cape has iron window headers that bow downward

I own a 1952 brick cape (with no overhangs) in CT that faces the Great Meadows salt marsh off of Long Island Sound. Most weather patterns, coastal breezes, and storms hit my house directly in the face.

When I bought the house, the building inspector found gaps in the brick mortar surrounding the iron headers of all the rough window and door openings. Last year I hired a seasoned brick mason to re-point all the mortar gaps (He did a great job.).

Asked By Dawn Viglione | Apr 2 16
2 Answers

How to properly insulate/ventilate a roof with no soffit venting?

My home has no soffits to vent and I get ice damming every winter. Also, where I have vaulted ceilings, the drywall is cracking. The roof has no vents, and the eaves are not vented, either. What is the most effective approach to alleviating these problems? Is active ventilation with a humidistat an option?

Asked By Rick McKenna | Apr 2 16
3 Answers

Transition from flat to sloped truss ceiling

I am working on finalizing my roof truss order. My building has flat ceilings at both ends, with a sloped ceiling over the center portion. In other words, there will be two transitions between flat and sloped ceilings. My truss designer has asked if I want a supplemental-flat-bottom-chord-truss to make these transitions. I had assumed this would be how it was done - a scissor truss with a flat bottom chord truss right next to it - but now that he's asked, I am wondering what the alternatives are.

Asked By Jim Tyler | Mar 30 16
4 Answers

Detached garage ventilation?

I have a detached garage in climate zone 4A -- 3200 ft. elevation just outside of Asheville, NC

The garage is insulated / drywalled and has a very nice finished room above (hardwood floors, beadboard walls). Both rooms are insulated, but neither is conditioned.

The garage has windows on 3 sides and the finished room has windows on 2 sides.

I had always left the garage windows opened year round and finished room windows closed year round (unless occupied).

I have been told that I should keep the garage windows closed, particularly in the summer.

Asked By Andrew S | Mar 12 16
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