Green building guides
Q: We typically build energy-efficient houses with 1-inch foil-faced polyisocyanurate foam on the interior of our walls. But more than one customer has questioned us about the potential health effects of the foam. Their concerns seem to stem from the outgasing of chemicals, more than the potential for the foam to burn. Are such concerns founded? What possible chemical hazards are present, and is there any evidence that these chemicals outgas at any substantial levels?
GUEST EDITORIAL: Green Building vs. Green Hype
With existing trees on a new lot, it’s what you can’t see that counts most — the roots. Here are the keys to preventing damage.
