Built green / Guides

Exterior air barrier membrane © Ecohome
Air and vapour barriers

How to install an air barrier for reduced air leakage

Watch more green building videos on the Ecohome YouTube channel here The Ecohome Demo House has a vapour permeable exterior air barrier and with an ACH rate of .69 is many times more airtight than the average new home. Air leakage can be responsible for up to 1/3 of the total heat loss of a home and cause signific...

Zero Carbon Homes - The S1600 Prefab Eco Home is affordably Close
Planning and Design

Zero Carbon Homes - The S1600 Prefab Eco Home gets affordably Close

...built inside the Montreal stadium for Expo 2019 Carbon emergency: Targeting the grey energy of buildings New construction in both residential and commercial applications are increasingly being built to higher standards of energy-efficiency and overall sustainability . This building trend has resulted in margina...

Crawl Spaces or Slab on Grade Foundations?
Foundations and Basements

Slab on grade or crawlspaces, which is better?

...built on a crawlspace; full stop. • EPS foam can be used as a vapour barrier when installed with multiple layers and offset joints as it will not absorb moisture from the ground. • Building on high ground eliminates any risk of flooding. • A slab on grade with a frost-protection skirt designed for its specific cl...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...built to code . For example, if a home is built of timber and will be air conditioned in summer months, it is now agreed on by building scientists that the worst thing you can do is to install an interior polyethylene vapour barrier. Since we build outside with wet materials, buildings start out wet. Over their servi...

Rendering of the Ecohome demonstration house
Efficient home design

Ecohome Demo House: High performance, affordable cost

...built homes, yet be on par with those homes in its annual cost to own and operate. Design for heat retention before heat generation Standard practices in residential construction are long overdue for re-evaluation and improvement. The energy needed to operate new homes reflects the cheap oil prices of days long gon...

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

Building science for LEED v4 wall design made easy - video

...built out to allow for the additional exterior insulation. The Delta air barrier was wrapped around the entire window box and into the interior. Window build outs for exterior insulation © Ecohome 4. Trusses were dropped on top after walls were completed. The trusses we needed for this house were enormous by mo...

The Top Twelve Green Building Trends for 2020
Planning and Design

Find out what's trending in 2020 for Green Home Construction

...built inside a city’s limits means one less house was built outside of them. 11. More options for Green building certifications Passive House certified homes consume about 90% less energy that a code-built house . As a green home certification program, Passive House is getting a boost from some regional building co...

Tiny Houses encouraged Washington State for Affordable Housing WA
Tiny house

Tiny Houses - Washington State promotes tiny homes & Eco-villages for Affordable Housing in WA

...built prefab housing The bill expands the definition of factory-built housing in RCW 43.22.450 to include tiny houses and tiny houses with wheels, incorporating prefabricated tiny houses into the L&I certification process for factory- built housing Creates a regulatory pathway for permitting tiny house Eco-comm...

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

What causes ice dams and how to fix them

...Green Homes all in the Ecohome Green Home Building Guide pages .

Which House Plants are Best to Clean Air & Remove Toxins?
Healthy indoor air quality

Which house plants are best for purifying air? Ecohome investigates

...built the first LEED Platinum home in Canada, he is a co-founder of Ecohome, a LEED for Homes Provider, LEED Green Rater, recipient of the 2016 Green Building Champion Award from the CaGBC, and a contributor to the LEED for Homes Rating system.

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils

...built on soil that could not support other types of structures. The typical soil bearing requirements for a thickened edge footing are 150 kpa (3,000psf), where a raft slab may be able to sit on soil with one third of that bearing capacity, or even less with additional engineering measures. This will often be the mos...