Air tightness / Guides

Problem areas of air leakage in a home and blower door test being cond
Air and vapour barriers

Airtight Construction of Homes is Essential: "Your house sucks." "Oh yeah? your house blows!"

...Air Tightness in Houses - All about Balancing Air Pressure in the Home We go on incessantly here about the importance of air barriers in home construction to reduce air leakage , but no matter how hard you worked to make a house airtight, if the pressure isn't balanced you will be sucking air in or forcing it out and...

Midori Uchi
Efficient home design

A new contender for the title of Canada's Greenest Home

...air tightness quality, and environmental responsibility in home construction. The Midori Uchi will be a show home for showcasing green home design for approximately one year. Some notable design features of the Midori Uchi: Rammed earth walls (first time in a single family residence in the Lower BC Mainland) Ra...

How to Choose between an HRV and ERV system
HRV and ERV

Choosing between an HRV and an ERV

...air comes in through walls? A reasonably tight house would have a measured air tightness of about 3 Air Changes per Hour at a pressure of 50 pascals (ACH @ 50 Pa). For the average home (2100 square feet), this would mean about 75 m³/h or 21 L/s (44 cfm) of outside air under normal circumstances. In real terms, that...

Habitat workers raise a wall at the the Red River Ex June 2011
LEED Homes

The Canada Green Building Council announces affordable green housing program

...airieHOUSE Performance, Inc. The homes feature innovative environmental aspects, including an exceptional building envelope designed for maximum insulation and air tightness, drain water heat recovery, and high performance heating and ventilation systems – saving up to 30 per cent a year in energy and water costs. Th...

The Archipod
Tiny house

Have a backyard home office delivered by truck

...air tightness. Standard heating is by way of an electric radiator, which is a highly efficient way to heat a small, independent and highly insulated space. 'Pods' can be fitted with small wood stoves as well. The fibreglass insulation used is made from recycled glass. The roof-light provides a high level of illum...

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

How to design for thermal comfort in a home

...air temperature and heat radiating to and from the surrounding surfaces of your home will further muddy the waters defining comfort; this includes air speed (think indoor 'wind chill' factor), relative humidity in the enclosed space, stratification (the difference in temperature between your feet and your head) and air...

When should you replace windows
Windows and doors

When should you replace old windows?

...airing old windows: If your frames are in relatively good shape and the issue is air leakage, repair is not only possible, it will likely be much cheaper and offer a very quick payback for your efforts in terms of saving energy and money. Air tightness - air isn't moving through the glass, it’s leaking around old s...

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

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

...airtightness standard. It has been estimated that air leakage can account for about 1/3rd of a home’s total heat loss , so for step one of the Step Code you will need to conduct a blower door test and meet the target set out by your municipal building inspectors. Conventional building designs that builders are fami...

Passively-heated off-grid LEED house in Low, Quebec
Off-grid and Net-Zero Housing

Off-grid living blog: a firsthand account of building and living in a remote area

...air with a device like a heat recovery ventilator (HRV). Blower door test to check for air permeability being conducted © Ecohome Airtightness is measured in air changes per hour (ACH), which measures the total volume of air inside a building, and how many times in one hour that this much air would be replaced ...

Passive home designer Harold Orr, one of the original high performance homes
Passive solar home design

The principal designer of the house that inspired the global Passivhaus movement reflects on the project that started it all.

...Air lock entry at the doors. With an air tight building an air lock is not really of much value, the whole house acts as a air lock and air doesn't blow though the house because there are no holes for the air to flow through. Soffits designed to allow full sun in the winter and complete shade for the windows in the s...

The EC3 Tool - Skanska - Calculating & Comparing Carbon Footprint of Buildings
Planning and Design

Calculating the Carbon Footprint of Buildings, Introducing The EC3 Calculator From Skanska

...air-tightness , more efficient heating , better internal air quality … which is a step in the right direction, but far from the whole solution to better buildings and homes. With the introduction of LEED V4, PHIUS+ and Zero Energy Ready Home standards across the US and Canada, supported by higher performance building...