Frost in attics / Guides

Frost in Attics: What causes Attic Ice? How to Fix it?
Roof assemblies - renovation

Why is there frost in my attic? Is ice in roofs a problem & How do I stop it?

...ing from inside a home into an insufficiently ventilated roof space, condensing, and forming ice. What causes ice in attics? Attic ice problems happen when there's a combination of 3 issues with a home's building envelope - and the thing that most often alerts home owners that a problem exists is a wet patch in the...

How to Vent Roofs - the Methods, Vent Types, Fans
Walls and Roofs

Why Roofs need to be ventilated and how to ventilate a roof properly

...in warm climates? Along with preventing frost build up in a cold climate, roof ventilation also prevents roofs from overheating in the summer, which prevents premature aging . Unventilated attics or insufficiently vented attics in warm climates (and ones in colder climates in summer months) can allow temperatures to ...

Ice dams on roofs & how to fix them
Roof assemblies - renovation

What causes ice dams and how to fix them

...ing to occur. Ventilation equipment such as furnaces, duct work and air conditioning are rarely seen in attics anymore, but if you have such equipment up there it is likely contributing to ice damming. In addition to that, you are probably adding 25% to your operational costs by having air handling equipment in what ...

Skylights can be problematic in a high performance home
Windows and doors

Are skylights an asset or a liability?

...ing insulation starting around R40, and finding them as high as R60 and R70 is not that unusual anymore, nor is that much insulation overkill in a really cold climate. In contrast, a skylight will probably be rated somewhere between R3 and R5 if you're lucky. That is a seriously weak link in the chain. Since a skylig...

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!)

...interstitial condensation? Interstitial condensation is a form of damp that occurs most often in winter when warm, moist, internal air from inside a structure finds its way into cold exterior walls, floors or roof and ceilings . It can also be caused in in summer months in conditions of high external humidity in comb...

Canada Greener Homes Grant 2021 - How to apply fiberglass attic insulation
Grants and incentives

Canada Greener Homes Grant 2021 - the "how to apply" guide - step by step

...ines contained within it to be able to work out what areas will benefit most from energy efficiency upgrades. But, we always suggest starting with optimizing the insulation for the building envelope, as insulation is the gift that keeps on giving! Home insulation Updating eligible attic/ceiling insulation, exteri...

Installing Siding Correctly
Exterior cladding

How to install siding

...ing the top cladding board to trim boards: This creates a dead end that traps humidity in walls behind siding. Cutting boards short and relying on caulking to fill the gap: Caulking will eventually fail, letting water in but also potentially keeping it in. Boards are best installed tight, a certain amount of shrinkin...

Ecohome's Kenogami House 'The Most Resilient Home in North America'
Concept and design

Resilient design features for new home construction

...ing. Exterior insulation will better protect against foundation cracking and interior moisture damage by eliminating the freeze/thaw cycle that a foundation wall insulated from the inside will experience. Discover how to insulate and build better basements here . Install a sump pump; including a battery backup is a...