Rot / Guides

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?

...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 speed on building science often think letting your walls ‘breathe’ is a good thing...

Installing foam panel insulation, which is best?
Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

...rotection you think it will in the dead of winter, and it may cause moisture damage due to its lack of permeability. Polyiso insulation boards are the most widely used low slope, above-deck commercial roofing insulation. As a versatile choice for commercial roofing applications, polyiso is designed to be part of any ...

Poly vapour barriers in air conditioned houses can cause mold and rot
Healthy indoor air quality

Why you should Never Install Air-Con in a Home with a Vapor Barrier

Vapor Barrier + Air-Con = Damp Moldy Walls So here's a little known fact that most HVAC installers won't tell a potential new client for central air; Polyethylene vapor barriers in combination with air conditioning in homes can rot walls because of the condensation they may cause. This is why if you have a newer hom...

What is Interstitial Condensation? (And how to stop it!)
Walls and Roofs

What is Interstitial Condensation in Walls or Roofs? (And how to stop it!)

...rot, mold and hidden structural damage. Just like dry rot, Interstitial condensation can be difficult to diagnose due to the fact that it’s hard to notice any signs of a problem until significant damage has been done. As we always say with potential structural issues, if you think you have a problem it is best to hav...

When should you replace windows
Windows and doors

When should you replace old windows?

...rot go unchecked in your house will just lead to further problems. More than just the loss of heat, money and comfort, over time rot could spread beyond just the window and affect the structural integrity of the wall itself. There is also air quality issues to consider as you may have mold and mildew as well. In such a...

Cutting a 110 year old dying pine tree.
Recycled and Reclaimed Materials

The rise of urban logging

It's always a bit sad to watch an old and seemingly healthy tree come down. But if it must, it's great to do something useful with it. This 110 year old pine tree in Chelsea, Quebec that was looming over two homes started to show signs of rot. With a new building project slated to go right underneath it, it was time t...

Metal roof with solar panels
Roof coverings

How to choose roofing materials

...rot and wind, very low embodied energy. They make for a beautiful, authentic and natural looking roof. As it is a completely natural material, it can be more responsibly disposed of than other materials at the end of its life Cons: Installation is time consuming, hail can cause splitting of shingles, they aren’t pe...

$40k Interest-Free Loans for Green Home Renos, How to Apply Canada 2021
Grants and incentives

Greener Homes interest-free loan scheme 2021 Canada - the ultimate guide

...rot walls. What could possibly go wrong with that you ask? Because organic materials that are kept wet will rot, full stop. If you want to test that theory, try this- the next time you pull your laundry out of the washing machine, stick it in a plastic bag instead of the dryer and see how it smells in a month. Spoi...

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

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

...rotected wood touching concrete will wick moisture and eventually rot. One inch of SPUF will solve your problems; four or 5 inches will reduce heat loss and save you money in the long run. Have insulation blown onto rim joists if it isn't already done. Foam must be covered by drywall for fire protection. Don't in...

A Tiny House with a Greenhouse - Yes it's Possible!

Tiny House with attached and mobile greenhouse - good or bad idea?

...rot in the ground and you've got my full retraction. Otherwise, just consider what needs to happen here – you have to take your home where it needs to go, then drive back and get your greenhouse. Two trips hauling trailers around. Greenhouses and growing food in cold climates The climate impact of food production...

Real estate

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

...rot and water damage. Read more about choosing exterior siding . Type and condition of roof: Shingles don't have a very long life span, so see how close they are to needing replacement. Metal roofs are far more durable and have a much longer lifespan. More here on choosing durable roof coverings. Windows: Quality i...