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3 Answers

Help with basement design

Hello All,

I am working on refinishing a play room in the basement that was recently damaged from water coming through the slab because my gutter was not hooked into the corrugated pipe that takes water away. So I now I want to refinish a playroom for my 1 year old son in the basement, making sure the health and safety is the priority.

Asked By leonid grossman | Sep 21 14
1 Answer

Sealing gap between garage floor & drywall?

Hi:

I am trying to figure out whether & how to air seal the gap between my garage floor and drywall in my 12-year old three-story townhouse in zone 2a. The gap is generally 1/2" wide, however in many places it's less. The door shown in the photos leads to the first-floor of the house.

I think caulk (any particular kind?) is the answer, but wanted to check first.

Also curious - without performing a blower door test, how "bad" do you think this gap is from an air-sealing perspective?

Thanks,
Rob

Asked By Robert Hallenbeck | Sep 20 14
3 Answers

The joys of insulating...

What is the best way to insulate around the corners of rigid round duct using foil-faced blanket type duct insulation?

Make a "sock" and coax it around the corners and don't worry about bunching?

Snip out pieces and try to form something like an elbow while generally making a mess and wasting time?

Something else?

Asked By Lucas Durand - 7A | Sep 19 14
2 Answers

Woodpeckers, Stucco + Exterior Foam with Rainscreen

Our client has requested to change the exterior wall cladding from from smooth panel cement board to acrylic stucco mainly for aesthetic reasons (eliminates corner trims, battens, etc.). Woodpeckers are a real concern in the area and when they knock on stucco with foam behind it sounds hollow so they keep digging.

First up, the proposed wall assembly: (BC Interior Climate Zone 6)

5/8" GWB
Membain vapour retarder
2x6" Studs @ 24" of
R22 Fiberglass Batt Insulation
3/8" OSB Sheathing
Tyvek WRB
2 Layers of 1" Type 2 EPS with staggered joints and taped seams on outside layer

Asked By Brett Sichello | Sep 20 14
24 Answers

Options for high R-value above-grade walls (R-80)?

To make a long story short, my above grade exterior walls need to be at an R value of 80. This is to meet Passive House standards for a new residential house in a very demanding climate.

I am currently planning on using SIP's of some sort. But even the best of those only get me up to around R-50 though. Any thoughts on ways to get to R-80 while still being cost effective and keeping the size of the wall to a minimum?

I have found a number of options myself, but was curious if anyone else had thoughts or suggestions to meet such a high R value for a wall.

Asked By Tom Schmidt | Sep 19 14
3 Answers

Thinking of going solar

I have reading alot about solar systems. I live in a 40' 5th wheel RV. Now This is what I was thinking of buying.....

6 - LG 305 watt solar panels ( 305 watt output each total 1830 watts ) ( around 75 amps output )
Magnum 5000 watt 24 volt inverter
Schneider (Xantrex) XW-MPPT-60-150V Charge Controller
4 - 6 volt 480ah Royal AGM batteries.
( Plus 3 - 30 amp fuse boxes and a junction box for the solar panels

My question is..............

I am Trying to figure out how many hours per will I be able to runs some devices on solar

Asked By Ron Davis | Sep 19 14
9 Answers

Most cost-effective method for achieving 3 ACH 50?

What are your strategies?

Asked By Nick Sisler | Sep 17 14
7 Answers

Better choice of exterior wall construction for new home?

We're building a new home in central Iowa. We're in climate zone 5. We thought we had a final above grade wall spec. Now, we're entertaining a different one. I think the first one is more robust, but I'd like an opinion on the two walls:

Wall 1 from inside to out:
1/2" drywall with latex paint
MemBrain "smart vapor retarder"
2x6 wood stud, 16" o.c.

Asked By Silas Hoeppner | Sep 16 14
5 Answers

Effectiveness of Roxul "flash and batt" - irregular closed-cell spray foam causing air gaps?

I have a spray foam crew coming Thursday to convert my attic to "unvented" (2x8 rafters). They want customers to do 5". My plan though was to do 4" and then 3.5" Roxul batts to fill followed by a layer of the Roxul board to reduce bridging on the rafters.

Asked By Chuck Swanberg | Sep 16 14
5 Answers

Air sealing question: Assistance requested for 6th side of building envelope

My husband and I are homeowners who are working on a very deep energy retrofit of our 1860's house, almost a total rebuild. We have learned so much from this website and the Q's and A's from everyone's contributions, so many thanks to all readers and contributors. We had already started the building process when we learned of this site, and are now attempting to make accommodations for deficits in our education and processes during the early stages of our build.

Asked By Howard Lederman | Sep 14 14
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