Efficient wall / Guides

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

The best tips for buying windows

...walls which are insulated to R50. If that house was fitted with just one 3 foot by 3 foot window with an R-value of only 1, the overall R-value of all of the walls combined would drop to R40, even though the poor-performing window occupies only 0.5% of the total wall area. If the house actually had two such windows, ...

Renovate, Remodel or Rebuild? How to choose which is Best for Homes
Wall assemblies - renovation

Should I be renovating my home or tearing it down & rebuilding?

...walls. Stripping exterior walls to the sheathing is a great starting place for a R.E.M.O.T.E wall , a residential exterior membrane outside-insulation technique. A wall being stripped back to the original structure that will be rebuilt as a REMOTE wall © Michel Chenier Whether new or old, REMOTE walls are a gre...

Tips for finding a reliable green home builder
How to Find Qualified Green Building Professionals

How to choose a home-building contractor

...efficient homes? Do you build airtight homes? Do you conduct blower door tests? Do you do energy modelling? What do you do to avoid thermal bridging in walls? What are your preferred types of insulation? Which type of wall assembly do you recommend? What is the most important feature in a home that affect...

Passive home designer Harold Orr, one of the original high performance homes
Passive solar home design

The principal designer of the house that inspired the global Passivhaus movement reflects on the project that started it all.

...walls. So the wall becomes expensive very quickly. Third you can insulate the wall, install the air / vapour barrier, then strap the wall on the inside with 2x3's. The problem with this is that 2x3's are the same price as 2x4's, and strapping the wall horizontally is more labour intensive than building a double wall....

Ecohome's Kenogami House 'The Most Resilient Home in North America'
Concept and design

Resilient design features for new home construction

...walls and interior condensation due to thermal bridging. A durable wall is energy-efficient and airtight, with an airspace between wall structures and exterior cladding to allow walls to dry and allow us to Install windows and doors correctly . The reason we make that connection between durability and efficiency is t...

Blower Door Tests - What's the Cost & Who Does Them?
Air and vapour barriers

What is a blower door test? What's the cost? How do you find a company to do one?

...wall assembly, it can condense and deposit moisture in your walls. Moisture means rot and mold, rotten and moldy walls means home renovations are needed, and that means open up your wallet. Nothing good ever comes from warm air leaking out of a building in winter. Nothing. Some older-school builders who aren’t up to ...

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils

...wall, and finally the slab floor. Rarely are footings insulated, and depending on how the walls are insulated, the result can be a thermal bridge between the footing and walls or floor. This brings unwanted heat loss, as well as a greater risk of condensation forming on those colder portions of concrete. Alternativel...

Prefab Passive House & LEED Kit Homes for Sale in Ontario & North Eastern US
Concept and design

Prefab Passive House & LEED ready kit homes - the future of buying a new home?

...wall assembly, in kit form The prefab high-performance walls of this Passive House & LEED ready home kit are made almost exclusively using ecological materials from natural sources: double-stud wood framing, recycled paper (cellulose insulation), and wood fiber insulation panels . Double-framed wall construction ...

Building a Passive House that's LEED Certified too - an Owner's Tale
Passive House

An owner/builder's account of building a Passive House

...efficient - in the neighbourhood of 90% more efficient than most Canadian homes. The key is to have almost perfect airtightness and super-insulation along with very high-performance windows . Achieving airtightness requires the use of some fairly high-tech materials but the result is a house that uses next to no energy...

Skygarden House home renovation in Toronto, Canadian Green Building winner
Real estate

This beautiful Renovation in Toronto is a Canadian Green Building Award Winner

...efficient active systems, such as in-floor radiant heating , high-velocity cooling, low-flow plumbing fixtures and high-efficiency lighting . Complementary to this approach, a key sustainable strategy was the decision not to increase the footprint of the house and to maintain the existing exterior brick walls while a...

LEED Platinum home certification FAQ
LEED Homes

LEED Certification for Homes - Frequently Asked Questions

...wall system). Renovation projects that only involve a single part of a home like kitchens or bathrooms are not eligible. When is it to late to register for LEED? Ideally registration begins before construction and even design , but it may not be too late. A project that is late to register will not be eligible for ...