heat-loss-through-windows / Green Building & Sustainable Home Renovation Information & Advice

The importance of installing doors and windows correctly: Window and door openings are breaches in a building envelope that need to be carefully managed in order to prevent moisture damage and air leakage in homes as well as to save energy. Water leaks from around windows and doors are the visible result of a poor inst...

Top Tips for preparing a home for winter Extremely low temperatures over winter can test your home in many ways, and sometimes your house will return a failing grade. Even brand new homes built to code can see failures of their building envelopes, windows, doors and ventilation systems during winter, a simple failure t...

The difference between air barriers and vapor barriers The job of a vapor barrier is to prevent vapor diffusion, and the job of an air barrier is to stop air leakage through differences in air pressure. A wall system should have one vapor barrier, but can have many air barriers. A vapor barrier can act as a very effect...

Material choices for window frames: Window frames can be made from a variety of materials offering different levels of performance and insulation values. Air in the cavities between panes expands as it heats up and contracts as it cools, which puts pressure on the seals and frames. When we speak of durable and sturdy w...

Fitting Windows, how to fit windows correctly to avoid air or water leaks  Watch more Green Building videos here The Edelweiss LEED Platinum V4 Demo House has been oriented towards the south to increase passive heat gain and reduce energy demand during operation. Choosing higher quality windows on all sides of your ho...

Homes heated by the sun's free heat! Passive Solar Houses are aptly named because there are no wires, panels or batteries and nothing to break down. It's just about design, and it isn't a new concept. Humans around the globe have been incorporating passive solar design features into their homes for thousands of years. ...

  Insulating a basement is a great idea if it wasn't insulated when built, as before we began insulating foundation walls and below slabs (see slab on grade), it was generally estimated that basement heat loss accounted for about 1/3 of the total heat loss of a house. It is likely that such an abysmal starting place ma...

Windows, Replace or Repair? We often get asked if it is a good idea to replace old windows with new and better performing windows to save money. Usually to the surprise and relief of homeowners we most often tell them to stick with the ones they've got. Not to say that the idea of replacing windows is always 'green was...

Which windows are best? Windows are essential to our homes, so getting the choice of window right is important. They give us natural light, a way to ventilate the home without depending on mechanical systems, a means of emergency exit, and they offer an alternative way to heat homes free of charge through passive solar...

It is easy to look at the R value rating of a material and assume that our entire wall assembly matches it uniformly. But when you factor in the thermal bridges caused by framing materials and any discontinuities in the wall structure, you can also quickly deduce that this is not the case. It doesn't take expensive equ...

The production of vinyl (also known as PVC- polyvinyl chloride) accounts for approximately 40% of the chlorine gas produced in North America. Vinyl is highly polluting in production, and as a building product it is susceptible to UV exposure, causing it to break down and release particles. And in the unfortunate event ...