Air leakage testing / Guides

Radon Mitigation - Installing a radon evacuation stack in a slab floor
Radon in Homes - Mitigation

Mitigating radon gas in homes

...airtight than in previous decades for reasons of durability (condensation in wall assemblies), and also for energy efficiency, as air leakage used to account for about 1/3 the total heat loss of a home. The lack of fresh air leaking in and out when building green homes means radon now collects in homes at higher concen...

Air and vapour barriers

Aerobarrier home and attic air-sealing spray

...air seal is thereby created around any openings and cracks in ceilings, walls, windows, plumbing and electrical penetrations. This is an easy way to plug holes in your air barrier that you can’t possibly see - from as small as a human hair to as big as a half-inch wide. The airflow in the home is monitored in real ti...

Heat Recovery Ventilation - Lunos video
HRV and ERV

Lunos ductless air exchanger

...air-sealed high performance home, bringing in fresh air and removing moisture. An HRV uses the heat in stale exhaust air to warm incoming fresh air. Until now, this has meant a centralized heat transfer core and a network of ducts feeding and drawing air throughout the home. With Lunos wall insert air exchangers that i...

Multi-unit Passive House for Heiltsuk First Nation on Campbell Island,
Passive House

Multi-unit Passive House for Heiltsuk First Nation in British Columbia

...testing for air leakage was planned for the factory, a number of envelope air seals had to be completed on site. Certification was further complicated by the limited climate data base available at the Passive House Institute, and the fact that Campbell Island gets its power from a diesel generator. Architectural deta...

BC Energy Step Codes - Builder Design Guide &  Requirements explained
Building codes

The new BC energy step code: builder design guide & requirements explained - Vancouver

...air leakage targets, but that just means being a little more vigilant with the way air barriers are installed and the way breaches in the building envelope are sealed; such as plumbing, electrical and ventilation openings, and how to ensure windows and doors are properly sealed . New BC Energy Step Codes - A Step i...

Tyvek home wrap left exposed to wind and UV rays
Air and vapour barriers

Choosing the right house wrap / weather barrier, which is best?

...air leakage. With no stapling needed and being fully adhered to the sheathing, wind and air pressure isn't a concern for air barrier durability with peel-and-stick membranes. Depending on the substrate you're sticking the membrane to, manufacturers may recommend they be installed by first applying a primer to the sur...

Free Energy Audits, Net Zero Home Grants & Interest Free Home Renovation Loans
Grants and incentives

0% loans & Grants for Green Home Renovations & Construction - A Boost for Canadians in 2020

...aired. A large percentage of heat loss from a home is due to air leakage , so part of your energy audit will be a blower door test , which will help you find and fix air leaks. Our Quebec office recently had a full renovation which gave us an opportunity to try an air barrier spray for sealing air leaks , and we were...

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

The best tips for buying windows

...testing or simulation, not done in-house. • Choose the most appropriate window material and design, see here for info • Remember that the product should be very airtight. Otherwise, the energy saved in heat transfer will be lost through air leakage. • Be careful to select glazing with a high coefficient of visibl...

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?

...air in from any existing hole in your air barrier no matter how small it is. The operator then determines your ACH (air changes per hour) based on the house dimensions and the volume of air in the home. Standard new home construction in North America seems to return an average air leakage rate of about 3 air changes ...