Isocyanates, such as MDI (methylene diphenyl diisocyanate), are chemicals that react with polyols to form polyurethane.
Environmental Protection Agency (EPA) released a new action plan for a key family of chemicals used in SPF. The issue of the day is spray polyurethane foam (SPF) insulation products. Get your copy » The issue of the day? SPF safety Our 98-page report provides detailed guidance on insulation products in all major categories, including cost comparisons and detailed recommendations on what insulation to use, and what to avoid. CEUs available. Remember when compact fluorescent bulbs first came out? Remember the first low-flow toilets? Best forget them.īuildingGreen's complete guide to insulation And we're not usually completely ready with a seamless hot swap. Unfortunately for the builder, homeowner, or renter who simply wants some reliable advice on what to worry about from an environmental perspective, and what not to worry about, things sometimes change or crop up unexpectedly. We have been inventing new chemicals that affect our indoor air quality for well over 100 years. For example, we have been paying serious attention to the health effects of building materials on indoor air quality for only about 20 years. We are racing to make our buildings safer, healthier for occupants, less-polluting, and lower carbon.
When I heard this, it felt to me a lot like a situation we face with some regularity in green building. This is underscored by the fact that you have to remove your seatbelt, in a speeding tractor-trailer, before you can even begin! While I'm sure that experienced drivers can "hot swap" quite, um, professionally, it is an inherently unsafe practice. When one is ready to take a break and turn the wheel over, rather than taking the time to stop, they may decide to trade places while the vehicle is moving down the highway. In trucking, a hot swap occurs in a truck being driven by a team of two drivers when they are in a real hurry to make a delivery. While he was thinking about it, his wife lit up and offered this advice (which I'm sure is not from the company manual): make sure your seatbelt is removed before you begin a hot swap. Over dinner recently, I asked what was one key lesson that he would want to impart to any new driver. At one point he even became a trainer working with new drivers. Updated by Paula Melton June 1, 2018.Ī friend of mine used to be a long-haul truck driver.
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