Building science / Guides

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

Building science for LEED v4 wall design made easy - video

...Building Science The wall we designed for the Edelweiss house, Canada's first LEED Platinum V4 Home is best categorized as a 'REMOTE' wall, a high performance building envelope developed by the Cold Climate Housing Research Centre in Alaska. REMOTE stands for 'Residential Exterior Membrane Outside-insulation TEch...

Net Zero Homes - Canada's first certified Net Zero House in BC
Green building certifications

The first Net Zero-labelled homes in Canada

...building significantly more energy efficient homes. Building science training is mandatory for participation in the Canadian Home Builders' Association Net Zero Homes Labelling Program. This training introduces the concept of treating the building as an integrated system, the basic principles of building science and ...

R values and insulation performance
Efficient home design

Understanding thermal performance

...buildings. Lorne Ricketts is a Building Science Engineer [EIT] with RDH Building Engineering Ltd. and has significant experience with the thermal performance of building enclosures and insulation products. He was the lead investigator on a recent project by RDH which assessed the thermal performance of conventional...

Building Climate Zones USA & Canada Maps Help with Specification of Homes
Planning and Design

Climate Zones in USA & Canada for Building Homes

...building homes But the principles of building science remain the same in all climate zones ; in relation to moisture movement though walls, and thermal dynamics (meaning how heat moves from one place to another). To better understand the basics of how to build an energy-efficient and durable home , see our building s...

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?

...Building codes and thermal bridges: It is not only sensible to address thermal bridging in construction, it is becoming law. Recent revisions to building codes have increased the thermal requirements of building enclosures in many regions, including requiring a thermal break. Contrary to common assumptions, t...

UBC's Centre for Interactive Research on Sustainability
LEED Homes

UBC Lab Exceeds LEED Platinum becoming one of North America's greenest buildings

...buildings worldwide that will provide “net positive” benefits to the environment. It reduces UBC ’s carbon emissions, powers itself and a neighboring building with renewable and waste energy, creates drinking water from rainwater and treats wastewater onsite. The CIRS building includes a green roof cour...

Efficient home design

Phase change building materials - natural heat storage in buildings

...building science makes mundane tasks like folding laundry a joy. This particular episode was about phase change building materials (PCMs) and how they can be incorporated into buildings to improve energy-efficiency by harnessing a naturally-occurring physical reality, 'the melting point'. When looking for commerciall...

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

...building envelopes. Building codes are making you do stupid things. The laws of physics trump code. - Joe Lstiburek This article was inpired by building scientist Joe Lstiburek, one of the most globally trusted and well-known names in building science who has left an indelible mark on the building codes of the ...

Vapor retarder latex primer instead of polyethylene sheet
Air and vapour barriers

Replacing polyethylene vapour barriers with latex paint vapor control

...buildings. This cult is responsible for many more building failures than building successes. It's time that the cult deprogramming started." - Joe Lstiburek, Principal of Building Science Corporation The USA & Canada has many climatic zones, so there is not one building envelope that can possibly serve them a...

Tips for finding a reliable green home builder
How to Find Qualified Green Building Professionals

How to choose a home-building contractor

...buildings; Any builder who has successfully navigated a performance-rating system would be knowledgeable in the area of green home building , so is a good bet when searching for a contractor who knows how to correctly weather seal & air seal windows and doors , for example, which is an essential part of building a mo...

Why Building Affordable Eco Homes is Important
Efficient home design

Why building an affordable family home today means choosing to build a Green Home

...building homes that are better than the legal minimum performance allowed - otherwise known as Building Codes - is probably a smart move. We aren't even suggesting that going to extremes and building North America's best Net Zero Energy Home in a cold climate zone is necessary - even 60% better - which is relatively ea...