Air leakage / 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...

Top Tips for Getting a House Ready for Winter
Wall assemblies - renovation

Winter preparation for your home - are you ready for the cold?

...air leaks can often be fixed with a tube of caulking . In fact, it can be good to do both. If you plan to cover a window with plastic, stopping air leaks first will prevent the plastic from ballooning out and ripping the tape seal. Read more here about how to install windows properly so they don't leak air Air leaks ...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...air leakage) ventilation in the home means that ground floor rooms are less humid than the basement. All that ground moisture will be continually sucked into the concrete and will then often cause fungus and mold issues in your batt insulation, timber frame or drywall. And frankly, that sucks! So Why are basements Mo...

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...

Spray Foam Insulation - Is it Good or Toxic & Dangerous?
Insulation and soundproofing

Is spray foam insulation a good choice for your home? Or a toxic recipe for disaster?

...air will leak through spray foam after it sets (right after, at least) and as much as we advocate for airtight homes, that can be a very real problem in this case given the risk to health. It is a known fact that indoor air quality in homes can be heavily polluted, and several times more toxic that outdoor air. That’s ...

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

...air gaps and air circulation make burning a phone book much more difficult than burning a single sheet. If you are looking to insulate using the greenest of options, CFI is probably for you. It is often manufactured regionally using upwards of 80% recycled materials, acts as carbon storage and requires significantly ...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...airtight and, most importantly, with better ventilation like HRV's or ERV's or air conditioning. There is also much more understanding of how buildings work and why walls can fail in a home with air conditioning, even when built to code . For example, if a home is built of timber and will be air conditioned in summer...

Real estate

Evaluating a home before purchase: how to recognize value and potential problems

...air leakage from the interior or insufficient or poorly installed insulation. Buying a house in summer won't tell you much on this front, but ask the owners. Does the ground slope away from the house or towards it? There should be at least a 5% grade away from the foundation so surface water will drain away and not t...

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

Our top tips for buying high-performance windows

...airtight. Otherwise, the energy saved in heat transfer will be lost through air leakage. • Be careful to select glazing with a high coefficient of visible transmittance [VT] and ensure that glazing on all orientations have a matching colour or tint. A high VT means more daylight is available which can save energy for...

Ontario climate change action plan
Grants and incentives

Ontario announces ambitious climate change action plan to reduce emissions

...air leakage will be part of home energy rating © Ecohome Grants for homeowners to invest in solar and geothermal systems Financial incentives for the purchase of energy efficient houses Establishing a mandatory energy rating for homes (fear not homeowners, inspection budgets will be paid for by the governmentt) Impleme...

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?

...air & vapor barrier . Without one, you sacrifice durability, energy performance and comfort. Air leakage makes homes drafty and very costly to heat, and escaping moisture will wreak havoc inside walls. Stripping exterior walls to the sheathing is a great starting place for a R.E.M.O.T.E wall , a residential exterior me...