Thermal bridges / 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?

...Thermal bridges that will cause significant heat loss are not limited to just studs in a wall. They include discontinuities in the insulation, corner junctions, badly installed insulation (convective thermal bridges), concrete slab junctions at walls and balconies, service openings (structural thermal bridges), and 'pe...

How to Fasten Cement Board Facing to slab on grade insulation
Slab on Grade

Finishing the exterior of an insulated slab-on-grade floor

...thermal bridging. What we decided on was plastic straps that passed through the cement board and that were anchored in the concrete. It did hold as planned, though there is more play in it than we ideally would have liked and if we were to do it again we would increase the amount of fasteners. Like many things, this ...

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

...thermal bridges – wood does act as a thermal bridge, but not nearly as much as metal, and with engineered I-joists, at only 5/8ths of an inch, the conductivity of the wood isn’t a great concern and becomes even less so the deeper it is. Fiberglass thermal spacers or "Cascadia Clips" The purpose of fiberglass insula...

Thermal image showing where home heat loss is occurring.
Insulation and soundproofing

How insulation works

...thermal bridge', and preventing it is known as a 'thermal break'. Heat loss through thermal bridging When we mentioned at the beginning that these factors can work in conjunction, that is because the cold surface that results from the high conduction through wall studs and other thermal bridges can absorb radia...

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

Building science for LEED v4 wall design made easy - video

...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 was identified and eliminated in the design phase. Thermal breaks in exterior insu...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...thermal performance as of 2012, it is now required in most areas that you break thermal bridges with some form of continuous insulation. With that, performance has improved, but there is still the matter of an enormous quantity of wood that makes up the frame, so the stated R value of batt insulation does not reflect...

How radiant floors work
Delivery: radiant, forced-air and decentralized

How to design for thermal comfort in a home

...thermal bridging, sealed against air leaks, triple-paned windows, humidity control and properly designed heating, cooling and ventilation equipment , to name a few. Thermal comfort = efficiency and durability: The less heat that is lost through the building enclosure, the warmer it will be, and less heat will be ...

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

...thermal bridges in framing puts the paper surface of drywall at a severe risk of condensation in winter. The interior environment of homes has changed significantly in the last few decades and this places new challenges on wall assemblies. Building code has often failed to keep up with that. Vapor control measures th...

Top Tips for Getting a House Ready for Winter
Wall assemblies - renovation

Winter preparation for your home - are you ready for the cold?

...thermal bridges through wood framing , poorly installed insulation, or even the complete absence of insulation in some spots. Some insulation materials can settle; other times builders take short cuts and future homeowners pay the price. Depending on the severity of the problem you may want to re-insulate one way or ...

How to choose Triple pane, high performance windows
Windows and doors

Our top tips for buying high-performance windows

...thermal bridging, which causes heat to be conducted through the wall framing via the window frame. This can be best achieved by centering windows in the wall rather than having them flush to the outside as we most commonly see. Eliminating thermal bridges lowers the risk of condensation, which in turn ensures longer li...

Condensation on windows in our homes - why is it there? - how to stop it?
Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...thermal bridges in its insulated envelope, it points to problems in humidity levels in the home – possibly coming from hidden problems in basements, crawlspaces, walls or ventilation systems – and some things are certain when a home has condensation running down the windows: Condensation won't disappear on its own ...