air-seal / Green Building & Sustainable Home Renovation Information & Advice

Approximately 100 times more water vapor is carried into our walls by air leakage than is carried by vapor diffusion. That makes air barriers 100 times more important than vapour barriers, so why is no one talking about them? We don't talk about air barriers because we are too busy talking about vapor barriers. An air ...

Polished concrete floors are extremely durable and non-toxic; silicate-based densifiers keep them that way and make it a great start to safe indoor-air quality in a home. This is an excellent flooring option for anyone with chemical sensitivities who wants a beautiful and durable eco-friendly floor in their passive sol...

For most of us, purchasing or building a home will be the biggest investment of our lives. This section is about knowing what to look for in new homes to get the best value for your dollar, or what to look for in a building lot for the same reasons. What to look for in a location: Being close to where you work and pla...

We often think of the land underneath our feet as fixed and unmoving. On a calm day, if you sit next to the ocean, it seems quite stationary. It does change though - with the shifting of tectonic plates, erosion, wind, super tides and flooding.  These changes are most noticed when we have a large event like a rain, win...

Air Tightness in Houses - All about Balancing Air Pressure in the Home We go on incessantly here about the importance of air barriers in home construction to reduce air leakage, but no matter how hard you worked to make a house airtight, if the pressure isn't balanced you will be sucking air in or forcing it out and, d...

The Ecohome Demo House has a vapor permeable exterior air barrier, and with an ACH rate of .69 it is  several times more airtight than the average new home. Air leakage can be responsible for up to 1/3 of the total heat loss of a home and cause significant moisture damage in walls, as one small hole can be responsible ...

Homes built in the last 40 years in Canada are relatively airtight. Before that we generally relied on leaky uninsulated walls to provide fresh air and prevent mold and mildew, and they did that very well. Cost and comfort had us adding insulation, but not necessarily sealing our walls. The folly of this was quickly re...

When buildings are decommissioned there can be a lot of valuable materials that could be used again, but when buyers can’t find sellers, otherwise usable materials are being sent to a land fill. There is a growing amount of used building materials that can be found at online classified websites such as Craigslist and K...

...air-sealing technique for ventilation systems where adhesive fine particles are sprayed into ducts, leaving the ducts perfectly sealed. Based on the success of that procedure, the company created the product Aerobarrier, which can seal entire homes.  How Aerobarrier works: Using standard blower-door testing equipment, ...

For most of us, purchasing or building a home will be the biggest investment of our lives. This section is about knowing what to look for in new homes to get the best value for your dollar, or what to look for in a building lot for the same reasons. What to look for in a home location: Being close to where you work an...

Why fix leaky faucets? One of the jobs that sat on my honey-do-list for quite a while longer than I care to admit has been to fix the leaky and dripping older-style faucet in the bathroom at the cabin - made worse by us being off grid and only having a finite amount of rainwater available in our outside catchment tank....