Double wall / Guides

Passive House wall system ; Larsen Trusses & dense-packed cellulose insulation
Wall assemblies - new construction

Larsen truss wall systems with double-stud construction & extra insulation for new homes & energy efficient home renovation

...double-stud wall assembly that allows for thicker insulation, is ideal for dense-packed cellulose insulation wall systems and a very high R-value building envelope without many of the problems associated with double-stud wall construction. Not only is it a great wall system for new green home building incorporating a d...

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

...wall construction on 1200/ft2 of wall you can expect to pay about $1.00/ft2 installed. If you add 1" or more of breathable foam insulation on the outside of the wall you will be looking at a minimum of an R25 exterior wall. A typical wall would be built with the following layers from inside to outside: 1) Drywall, ta...

Off grid, passively heated and cooled house in the Gatineau Hills, Que
Off-grid and Net-Zero Housing

Off grid living blog, part 2: passively heated, this house in Quebec aims for LEED certification

...double exterior wall are plenty. It eliminates thermal bridging through studs, provides lots of room for insulation, and the air/vapour barrier is sandwiched between walls where it won't need to be punctured for electrical work, as all wiring is done on the interior 2x4 wall. High efficiency Double wall...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...wall? What is the most energy efficient wall? What is the most soundproof wall? What is the most affordable wall? That is just a short list of things to consider, and despite many people online saying they have " The Perfect Wall " there isn't one right answer, because honestly the perfect wall system for your ...

Net Zero Energy homes Edmonton Alberta
Off-grid and Net-Zero Housing

Net Zero Energy house in Edmonton, Alberta

...wall systems: Different wall systems combined with various technologies are being used to demonstrate diverse methods to achieve Net Zero energy consumption. The showhome and neighbouring home to the West will feature a 12" EnerGard Wall System made with engineered wood and expanded polystyrene which achieve an i...

Building science for LEED v4 wall design made easy
Concept and design

Building science for LEED v4 wall design made easy - video

...Wall Design: Building Science The wall we designed for the Edelweiss house, Canada's first LEED Platinum V4 Home is best categorized as a 'REMOTE' wall, a high performance building envelope developed by the Cold Climate Housing Research Centre in Alaska. REMOTE stands for 'Residential Exterior Membrane Outside-in...

The Fincube tin house
Tiny house

The Fincube off-grid tiny house

...double-sided functional wall panels allow for easy versatility in room layout. When the Fincube is used as a living space, the functional wall panels are situated in the middle of the room, and the four living areas (living room and bedroom, kitchen and bathroom) open up to the outside. The 360-degree glass fronts,...

Yukon's first LEED certified home
LEED Homes

The Yukon's First LEED Certified Home

...wall significantly reduces heat loss and on top of that this home has walls insulated to R-60 and the ceiling to R-100. Hyper-insulating a home will add cost of course, up until a certain point. With such extreme insulation , builder Forest Pearson was able to avoid the cost of installing a furnace and ductwork, inst...

How to Build With Less Wood for Best Performance
Wood and organic materials

How to build high performance homes with less lumber

...double what code would require in many cases, and it's also a smarter long term investment in colder climates. Legalett ThermalWall rigid foam insulation panels This wall assembly doesn’t need an interior poly vapor barrier as the foam will be the vapor barrier. Double stud dense packed cellulose walls Cell...

Energy modeling simulation of heat loss through thermal bridging
Efficient home design

What is a thermal bridge and why is it so important to break it?

...walls quite unpleasant, rendering part of your home somewhat unusable at times. Wood, metal and concrete in exterior walls act as thermal bridges, conducting far more heat than the insulation on either side of them. But with most types of wall assemblies we have little choice but to use some kind of heat conducting m...

Passively-heated off-grid LEED house in Low, Quebec
Off-grid and Net-Zero Housing

Off-grid living blog: a firsthand account of building and living in a remote area

...walls, we ended up using a double stud wall assembly. The structure of the house is built with 2x8 lumber, which allowed both for the necessary support on the tall wall of the main floor, as well as to give a deep space for insulation. The bays in this wall were filled with Roxul batt insulation, a mineral wool product...