Air Leakage Testing a New Off-Grid High Performance House

We had the great pleasure of air leakage testing a new off-grid, high performance house last week. It was the most air tight building we’d ever tested!

DSC_0524

Situated on a hill overlooking the sweep of the Saugeen River below.

Builder Steven Dennison of Dennison Homes and building envelope consultant Patrick Andres, a Certified Passive House Consultant (CPHC) have officially produced the most airtight home we’ve ever tested in Ontario for an off-grid build going up in Saugeen Shores. If there’s a tighter one we want to test it!

DSC_0522

From left to right; high-performance tester Shervin Akhavi (BlueGreen Group), Certified Passive House Consultant Patrick Andres and builder Steven Dennison of Dennison Homes take moment to celebrate the home’s air tightness record for Ontario.

This lovely house built on a hillock in farm country, overlooking the Saugeen River had a traditional look. Using Nudura Insulated Concrete Forms (ICF) for the basement walls and 8 inch Structurally Insulated Panels (SIPs) for the above grade walls Steve took it up to 11 and added more insulation!

The exterior walls were clad with another 1.5” of extruded polystyrene and the interior also had an interesting product from Nudura – expanded polystyrene with integral wood strapping at 16”oc.

ENVELOPE DETAILS:

  • R 24 underslab insulation
  • R30 below grade walls
  • R 58 above grade walls
  • R 75 cathedral roof
  • R 80 truss roof
  • Doors were from Fibercraft Door Company in Hanover, Ontario.
  • Windows were produced by  Southwall Insulating Glass of Chicago with a pair of Heat Mirror 88 film in the sealed glazing.

 

DSC_0530

The poly air barrier on the top floor being puffed in by the air tightness test.

The Southwall super-insulating glass with suspended film in a fiberglass window frame were beautiful. These units have a high frame R-value and come in multiple colours with optional stainable wood veneer interiors. George Strickland, the manufacturer’s representative, has been promoting the line in Ontario for the last two years. George says “The Southwall glass units can be included in any type of window frame allowing for adaptability in style and design, in commercial or residential applications.”

George also supplied the exterior thermal doors which were made by Fibercraft. These high performing single and dual (French) doors are made with Fibergalss skins and come in smooth or wood grain stainable finishes. They also came with the Southwall glass built-in.

DSC_0518

Window detail showing the Southwall’s super-insulating glass with suspended films in a fiberglass window frame.

The air leakage rates, with a leaky cellar door came in at an amazingly low 0.52 Air Changes per Hour at 50 Pascals (ACH50) with a mere 32 square inches of equivalent leakage area (ELA). Though the wood stove and HRV were not in yet, this basement door was super leaky and the drywall wasn’t clamping the poly on the second floor.

DSC_0514

Driving in we crossed a half dozen wild turkeys (Meleagris gallopavo).

Views: 1054

Comment

You need to be a member of Home Energy Pros Forum to add comments!

Join Home Energy Pros Forum

Comment by Greg Labbe on December 2, 2013 at 12:35pm

Dennis,

I didn't do the WUFI or the PH consulting on this project. Patrick Andres may be able to help you with your query:

http://www.linkedin.com/profile/view?id=80946049&authType=NAME_...

Comment by Dennis Heidner on November 22, 2013 at 7:35pm

What does WUFI show for the drying ability?  

The heat pump is there for spring,summer and autumn cooling to (prevent over heating) correct?

Forum Discussions

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler 2 hours ago. 2 Replies

Dirty solar panels

Started by Evan Mills in General Forum. Last reply by Stacie Bagnasco 8 hours ago. 1 Reply

Fixing a water heater?

Started by John Shillito in Best Practices. Last reply by Eric Kjelshus on Friday. 21 Replies

Latest Activity

David Butler replied to Brad Cook's discussion Too many Heat Pump Water Heaters in a basement?
"theoretically, let's say you perfectly isolate the HPWH from a heat source. The HPWH's…"
1 hour ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Interesting idea. Commercial roof on a slope! Typical density for roofing spray foam is 2.5 to 3.0…"
2 hours ago
Profile IconRandy Kinnison, Breanna Detwiler, Jeff Farlow and 7 more joined Home Energy Pros Forum
2 hours ago
Summer Redman added a discussion to the group Job Board
Thumbnail

Hiring 2 Training Specialists in Champaign-Urbana, Illinois

The Applied Research Institute (ARI) at the University of Illinois at Urbana-Champaign is seeking…See More
3 hours ago
Summer Redman joined Diane Chojnowski's group
Thumbnail

Job Board

This group is for posting jobs related to all aspects of the home performance industry including…See More
3 hours ago
Stacie Bagnasco replied to Evan Mills's discussion Dirty solar panels
"This is a great idea. I clicked on your discussion because it made me remember that I forgot to get…"
8 hours ago
Kirsten Richnavsky posted an event
Thumbnail

rCloud - The Future of Testing at Your Office or Home

October 18, 2017 from 2pm to 3pm
Integrating rCloud as an essential part of your RESNET QA process.Retrotec’s rCloud app is here,…See More
8 hours ago
Ed Whitaker replied to Brad Cook's discussion Too many Heat Pump Water Heaters in a basement?
"Brad,   I agree with the comments and would add a couple of thoughts. 1st,  any time you…"
9 hours ago

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service