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11 Answers

Hi,
I need some advice...preferably before I cut a bunch of holes in the walls or ceiling and find out that this was a pointless venture.

So the details:

900sq foot one level, mostly open plan, highly insulated and sealed home.
Heating climate...like really... a lot. -40 C is not unheard of for stretches of time. More typical is -20 C

The house is powered completely with PV.

Heat is supplied by radiant slab, a bit of passive solar. I am also putting in a small wood stove in the next few days.

Asked By keith ahlstrom | Aug 21 14
3 Answers

I am in the process of shopping for window flashing tape and am running in circles about what brand (and type) of flashing tape to purchase. Obviously, price is a consideration, but I do not want to sacrifice quality and longevity.

Asked By Matthew Michaud | Aug 20 14
5 Answers

For a large scissor truss (top chord 31" above bottom chord), we want around R-70 but no more. How do you 'contain' the blown in, or how would you use batts?

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Asked By David A Flannery | Aug 18 14
6 Answers

Hi there,

Just want to be sure I'm not missing anything ---from the reading I've done, it seems that most PVA woodworking glues are fairly nontoxic...We have specified no or low-VOC products for our remodel, but our contractor is not an expert in this area. They want to use Titebond II. It seems like a safe choice. Does anyone agree or have a better suggestion for a carpenter's (wood) glue -- aiming to have a minimal impact on indoor air quality--very limited off gassing.

Asked By Mindy Munger | Aug 14 14
2 Answers

We are in Minneapolis with a 1923 Tudor house. Last year was our first winter in the house. We had bad ice damns last year and there is plenty of evidence it has had problems in the past. The second floor is a full story and consists of a shed dormer addition with no venting that I can see. The rest/original of the roof has minimal venting due to lack of (none) eves. There are only pots, but no soffit venting. Half of the story is unconditioned attic is accessible and is on the same floor as the living space. Access through a full size door.

Asked By Joe Sweeney | Aug 4 14
11 Answers

Your details show a caplillary break between the footing and foundation walls. What is it? Is it continuous?

Asked By Arthur Ratner, AIA | Jun 23 09
5 Answers

Investigation revealed 3 problems: 1) no soffit vent; 2) insulation extending beyond the end of plastic rafter vents closing off the air channel up to the ridge vent; 3) no blocking above the wall to seal up the fiberglass. I've corrected the first two and caulked the ridge on the inside, but am unable to fix the blocking. The odor persists and I fear the fiberglass is contaminated with mold that the revived air flow won't be able to dissipate. Would pulling out the fiberglass (through the soffit to avoid major deconstruction) and filling the bays with foam work?

Asked By Michael Roland | Jul 25 14
3 Answers

I am planning a 30'x22' farm workshop in Eastern Ontario, Canada. I want to end up with a level floor suitable for woodworking machines (table and bandsaws, planer, jointer etc) , Floor will be on grade, location is on a small rise and I will make sure there is good drainage away from building. I will place 2" of SM insulation under floor. I will most likely frame double stud walls and insulate with 6" to 7" of Roxul.

Asked By mark godfrey | Jul 26 14
6 Answers

Hi. I haven't been here for a while because I thought I had found the solution to my crawlspace problem but alas I haven't. I had been dehumidifying the crawlspace at our beach house with a high capacity Santa Fe dehumidifier which unfortunately got destroyed when the crawlspace was flooded during Superstorm Sandy. Rather that buy a new one, I had a vapor barrier installed, replaced the open vents with insulated smart vents and had the underfloor of the house covered in 2-3" of closed cell spray foam.

Asked By Cherylann Schieber | Jul 17 14
1 Answer

I am a homeowner, little sun from Nov to March, average daytime winter temp -8 C, night -15 C, with intermittent -20 C days lasting no more than a week, summer daytime temp, average mid 30 C, night 20 C, with intermittent weeks of high 30 C., average annual rainfall 20 inches, average annual snowfall 60 inches, generally calm, however, can get an occasional rare storm with winds of 20-40 mph and generally low humidity particularly in the winter.

Asked By Marilyn Limbert | Jul 16 14
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