Walls and Roofs

Correct window installation details
Windows and doors

How to install windows

Tips for window installation that will give you the best performance and durability. Fitting Windows, how to fit windows correctly to avoid air or water leaks  Watch more Green Building videos here The Edelweiss LEED Platinum V4 Demo House has been oriented towards the south to increase passive heat gain and reduce…

Exterior air barrier membrane © Ecohome
Air and vapour barriers

How to install an air barrier for reduced air leakage

Air leakage is responsible for a large portion of the heat loss and moisture damage in walls. Watch more green building videos on the Ecohome YouTube channel here The Ecohome Demo House has a vapour permeable exterior air barrier and with an ACH rate of .69 is many times more airtight than the average new home. Air…

Mineral wool insulation in roof by Rockwool - LEED Platinum V4
Roof assemblies - new construction

Mineral wool insulation in roofs by Rockwool

Mineral wool batts being installed in roof for a total of R95 - Contributing to a LEED Platinum V4 certification for EcoHome's Edelweiss House. Mineral wool roof insulation used to best effect: Watch more Green Building Video Guides on the EcoHome YouTube Channel here The Ecohome's Edelweiss House LEED Platinum…

Wall assemblies - new construction

Wood framing

All lumber for interior and exterior framing is FSC certified. All framing materials for the Demo House are FSC certified, and provided by our sponsor Kott Lumber. Kott engineered the plans for us , supplying detailed framing documents including a cut list for each framing member. We were also provided with a wood…

Installing foam panel insulation, which is best?
Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

Rigid foam insulation boards are different. Choose carefully between Polyisocyanurate, EPS & XPS or Mineral Wool & Hemp as the wrong choice can reduce insulation performance & cause mold & rot in building envelope's. Polyisocyanurate (PIR), Extruded Polystyrene (XPS), Expanded Polystyrene (EPS) or Styrofoam? When…

Insulating a Slab on grade for a Passive Solar LEED Home with Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

Installing 8 inches of Roxul mineral wool below a concrete slab floor. Insulating below slab-on-grade foundations Why insulate under a slab on grade foundation? For comfort, and to save money, that's why! In many areas Building Code has fallen behind common sense on what specification of insulation to use under a…

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

Top Tips for installing windows & doors to prevent water leaks & air infiltration, helping them perform better & last longer, especially in LEED, Passive House & ZNE Homes. Why Installing Windows & Doors Correctly is so Important Window & Door openings are breaches in a building envelope that need to be carefully…

How to choose Triple pane, high performance windows
Windows and doors

Our top tips for buying high-performance windows

The quality of windows you install will have a big impact on both your comfort and your heating bill. Here is a guide to help you choose the best windows for your high performance home. Which windows are best? Windows are essential to our homes, so getting the choice of window right is important. They give us…

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

Dense-packed cellulose insulation in double stud walls offers high performance while maintaining a low carbon footprint. Here we bust some of the unfortunate myths and misunderstandings surrounding this type of wall construction. Dense-packed cellulose insulation - the History In 2005, Metric Homes of Carp, Ontario…

How to insulate basements properly
Insulation and soundproofing

Best practices for basement insulation in new home construction

Basements in Canada & USA face serious challenges: fluctuating water tables, surface floods, thermal shock, radon gas infiltration, condensation, mold, mildew, rotting walls and heat loss. Better basements manage these issues. The most common practices currently employed for finishing basement interiors as living…

Basement wall insulation
Insulation and soundproofing

Properly insulating basements and concrete slab floors

The importance of properly insulating basements cannot be stressed enough. Uninsulated basements and poorly insulated basements can be responsible for as much as 1/3 of the total heat loss of a home.   Insulating a basement is a great idea if it wasn't insulated when built, as before we began insulating foundation…