What is a thermal bridge / Guides

Energy modeling simulation of heat loss through thermal bridging
Efficient home design

What is a thermal bridge and why is it so important to break it?

...is easy to look at the R value rating of a material and assume that our entire wall assembly matches it uniformly. But when you factor in the thermal bridges caused by framing materials and any discontinuities in the wall structure, you can also quickly deduce that this is not the case. It doesn't take expensive equi...

How to Insulate Exterior Walls from the Outside US Canada Ecohome
Walls and Roofs

The easiest way to insulate walls from the exterior in older homes

...and exterior cladding. Cascadia Clips from Cascadia Windows in Vancouver are the biggest name in fiberglass thermal spacers you will find across Canada and the U.S. so the concept has in a way adopted the brand name, but there are others brands of wall insulation thermal spacers such as Armatherm Z Girt available, pi...

Air barriers are essential to a properly functioning wall system
Air and vapour barriers

What is an air barrier?

...alking about vapor barriers. An air barrier is not something you walk into a building supply store and buy; it is a design concept, and arguably a commitment. Products that can act as air barriers are drywall, sheathing, insulation, house wrap, even the polyethylene we normally install as a vapour barrier can act as an...

Building science for LEED v4 wall design made easy
Concept and design

Building science for LEED v4 wall design made easy - video

...and XPS that is connected to a disturbing amount of human health issues. Avoiding thermal bridges: When one section of a wall conducts heat much quicker than another, we refer to it as a thermal bridge , and that can greatly reduce the overall R value of a wall. Virtually every thermal bridge in this wall assembly ...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...is certain, water only runs downhill - unless that is it has a reason to do otherwise. When installing windows and doors the first basic rule is to "think like water" - ensure that all openings are flashed and taped appropriately and to code so that water that wants to run downhill can do so rather than accumulate and ...

Shipping container homes, Good or Bad?
Architecture and plan design

Are shipping container houses environmentally friendly & good or bad to live in?

...and strength of wood. You can easily frame a wooden roof to carry the added weight of soil on a green roof, and wood is renewable, usually local, and more sustainably harvested than metal. 4. Health: Container houses may subject you to toxic substances, as it is hard to know what was previously contained in a conta...

Interior sheathing as air & vapor barriers in wood frame construction
Air and vapour barriers

Interior sheathing as an air and vapour or vapor barrier

...ay to do it, and not necessarily the best for this climate, particularly with air conditioned homes. Whether or not a material qualifies as a vapour barrier is determined by the amount of moisture that passes through it, and it is given a rating. Any material that allows less than 60NG (nanograms) of moisture to pass...

Better Basement Design on basement walls prevents mold and midlew
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...an even and total protection. SPUF has a high R value per inch, acts as an air barrier and a vapour barrier. However, it has been known to shrink after application, leaving air gaps and a lack of thermal protection. Another downside to the original SPUF is that some blowing agents have a high global warming potential...

Comparing ground source and air source heat pumps
Heating and cooling

Heat Pumps: Ground source geothermal GSHP or air source ASHP, which one is best for heating a home?

...is would instantly cut annual heating costs by a factor of 3 and offer very attractive paybacks. Research has shown that heating a single family home with a heat pump instead of a natural gas furnace or boiler yields carbon emissions savings comparable to taking an average car off the road . A gradual transition to...

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

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

...an even and total protection. SPUF has a high R value per inch, acts as an air barrier and a vapour barrier. However, it has been known to shrink after application, leaving air gaps and a lack of thermal protection. Another downside to the original SPUF is that some blowing agents have a high global warming potential...

Solariums in cold climates won't heat homes unless carefully designed and built
Greenhouses and Sunrooms / Solariums

Solariums in cold climates won't heat your home

...arge glazing area. As the structure and frame have virtually no insulation value, they will act as a thermal bridge , and quickly draw the heat out of the solarium. In short, heat accumulated during the day will be lost at night, and the overall energy balance will often amount to a net heat loss rather than the comm...