What is building envelope / Guides

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...what is the best wall system? That also depends on what you are looking for. What is the most durable wall? What is the most energy efficient wall? What is the most soundproof wall? What is the most affordable wall? That is just a short list of things to consider, and despite many people online saying they ha...

Insulating a Slab on grade for a Passive Solar LEED Home with Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...what specification of insulation to use under a slab , It is common to install as little as R5 insulation below slab floors, making that about the weakest point in a building envelope, as walls are generally at least R20 and ceilings R40. There is a misconception that heat rises (hot air rises, but heat travels evenly ...

The high performance almost ZNE Warburg house by bioi - built for under $100,00
Efficient home design

A High Performance Home on a Shoe String Budget (Almost ZNE!)

...is essentially divided into two halves, a public side a private side. With a well-insulated building envelope, high performance mechanical systems and radiant heat in the polished concrete floor, this modest-sized one bedroom house earned the highest EnerGuide rating possible for a home that is not net-zero, a consid...

Net Zero Energy Homes Pilot Canada
Green building certifications

Net zero energy homes Canadian pilot results

...building community, This Net Zero Energy home construction program focused on off-the-shelf technologies to ensure that it did not rush the home building industry into high-performance building techniques that were beyond their experience range or comfort levels. A little push of the envelope is a great thing to keep...

Bike lanes in Vancouver
Lifestyle, location and commuting

Vancouver's goal of becoming the Greenest City by 2020

...is depressurized. This allows builders to measure, find and repair any air leaks before construction is completed. While they are a prerequisite for programs like LEED, unfortunately blower door tests are not something required by provincial building codes. When there is a minimum performance requirement in place, ...

Multi-unit Passive House for Heiltsuk First Nation on Campbell Island,
Passive House

Multi-unit Passive House for Heiltsuk First Nation in British Columbia

...Buildings certified to Passive House require up to 90% less heating and cooling energy than an average building. The Bella Bella project was seen as an opportunity to put this change into practice. An RFP (request for proposal) was issued for a design/ build contract, including a basic program, design criteria and th...

Leed platinum plaque
Green building certifications

All about green home certification programs & rating systems for USA & Canada

...building envelope (windows, doors, insulation) as well as appliances and energy systems. With this information and a blower door test to determine how airtight your building envelope is, information is fed into energy analysis software called HOT2000 which compares your home with a reference home of similar size in a s...

Built to ENDURE: the Net Zero Heat Kenogami House
Efficient home design

The Kenogami House: designed to ENDURE

...building, how energy efficient a building is largely depends on the building envelope. It controls heat loss, air leakage and the movement of moisture. What is often omitted from the equation that determines the overall efficiency of a building is the embodied energy of the materials that make up its components. The ...

BC Energy Step Code - Builder Design Guide &  Requirements explained
Building codes

The new BC energy step code: builder design guide & requirements explained - Vancouver

...is is an incremental improvement in BC provincial building standards designed to lead us towards Net Zero Energy buildings far into the future, but at a pace that won’t freak you out. At least not freak you out too much anyway. What is Energy modelling? This isn’t something that will be done with a tool from your p...

The passive solar home in Lac Kenogami, Quebec
Passive solar home design

Ecohome design wins House of the Year Award from Green Builder® Magazine

...is challenge. The following is our story first published on September 6, 2013. After fire destroyed his house in Lac Kenogami, Quebec, Alain Hamel decided to make the best of this unfortunate situation and pushed the envelope on energy efficiency during the design process of his new home. Alain enlisted the help ...

Students at New Frontiers School Board to build LEED home to be donate
LEED Homes

Quebec carpentry students to build LEED house for Habitat for Humanity

...building project, and so far it looks like they will do very well. The design is by no means completed; it is still in the very early stages. The teachers are taking advantage of this opportunity to come up with any and all green features they can think of, all while ensuring this house fits in with its future neighb...