One of the toughest decisions in green building is the choice of insulation. Each type has its own set of virtues and problems. Last summer I wrote an article to try and address this confusion. I didn ...

Fiberglass batts are the most common insulation materials used in construction, and the vast majority of the time they are not installed properly, leading to very inefficient construction. This ...

Last week's column addressed cellulose insulation, which is the greenest and one of the most effective insulation materials available. But it isn't always practical or affordable to install cellulose.

After decades of arguing, homeowners still can't pick a clear winner.

Q: How do I prevent condensation from appearing underneath the vapour barrier covering the fibreglass insulation on my basement walls? The company that did the building work came and loosened the ...