Walls and Roofs

The structure and design of a building envelope will determine how much it costs to heat and cool your home, and how long it will last. This section contains information about wall designs that will protect your home against the elements, and create an enjoyable indoor environment that is healthy, comfortable and durable.

Carpenter ants
Pest control

Removing insects and rodents from your home

Solutions for preventing and eliminating some common pests and insects.

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Choosing between renovating and rebuilding
Wall assemblies - renovation

Renovating or tearing down and starting over

Whether a house is worth rebuilding or is better torn down takes considering a lot of factors.

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4th generation blowing agents for spray foam
Insulation and soundproofing

New HFO blowing agents for spray foam will make it over 1,000 times less harmful to the climate

Foam blowing agents long ago stopped harming ozone, that switch had a huge impact on climate. That problem has now been solved.

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Shou sugi ban carbonized wood siding
Exterior cladding

Shou sugi ban carbonized wood siding

Shou sugi ban burnt wood exterior cladding is naturally made and very durable.

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Living green roof on the Helen Schuler Nature centre
Roof coverings

Living roofs: the secrets to success

Learn the steps to creating a successful green roof - concept, design and maintenance.

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Repainting and refinishing brick facades
Exterior cladding

Refinishing bricks and masonry

How to refinish tired-looking brick homes, and how to make new bricks match your old ones.

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Icicles are an indication of heat loss, which can cause damage to insu
Wall assemblies - renovation

Winter troubleshooting - are you ready for the cold?

Tips for preparing your house for winter: how to make your house more efficient, more durable and more comfortable.

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Ice dam
Roof assemblies - renovation

What causes ice dams and how to fix them

Ice dams form at the bottom of roofs, letting water penetrate and cause damage to the interior of walls and roofs.

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Frost in attic
Roof assemblies - renovation

Why is there frost in my attic?

A roof leak isn't really a roof leak if it’s leaking on a sunny day. It's more likely an accumulation of frost finally melting.

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Insulation and soundproofing

Does 'insulating paint' work?

No, it doesn't work. Don't buy the hype about insulating paint, this is snake oil in its truest form.

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Tyvek home wrap left exposed to wind and UV rays
Wall assemblies - new construction

Weather barriers - what they do and how to install them

Weather barriers (or more accurately water-resistive barriers) keep bulk water away from vulnerable building components and allow walls to dry at the same time.

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