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We live at the bottom of an ocean of air. Each of us is carrying around 14.7 pounds per square inch when at the beach in Miami1. We are powerful creatures indeed. Imagine carrying around 101,000… Read More

Putting ductwork outside is bad enough, but putting ductwork in an attic is even worse (Photograph 1). Attics are even hotter than outside during the summer and as cold as the outside in the winter.… Read More

Life was simple when I grew up in Canada. Winters were long and cold, we had no air conditioning, walls dried to both the outside and the inside and the Toronto Maple Leafs would win Stanley Cups.… Read More

When Mother Nature came up with wood it gave it magical properties that try as we might we mere humans find it difficult to improve upon or to transfer to other materials we come up with.1 One of… Read More

"I've looked at life from both sides now . . ."~ Joni Mitchell1Walls can get wet from the inside, walls can get wet from the outside. Walls can start out wet. Wet happens. Because wet happens walls… Read More

“If there is a pile of manure in a space, do not try to remove the odor by ventilation. Remove the pile of manure.” Max von Pettenkofer, 18581Gotta love those Germans. Especially the really old ones… Read More

Excessively high exhaust flow in a tight enclosure. Surely no one would be dumb enough to do this? Quick quiz. What is currently the most common ventilation approach in houses, apartments and… Read More

If you take rocks and melt them and blow air through them you get fluffy rocks. And fluffy rocks don’t burn. If you take gypsum and make it into sheets you get “sheet rock”. And guess what? Rocks don… Read More

One of the dirty little secrets that never gets talked about is that water leaks through building papers, building wraps and housewraps and runs down between them and the sheathings that they cover.… Read More

To claim that something that has holes in it can act as a water control layer is a pretty interesting argument. It is both true and untrue.I have it on good authority, that for there to be a leak you… Read More