Document Search

To vent, or not to vent…that is the question: Whether ‘tis nobler in the mind to suffer  The slings and arrows of outrageous moisture, Or to take arms against them And by opposing end them.… Read More

This has nothing to do with a pony or Nebraska1.In general there are two main types of fire issues: fires emanating from the interior of a building and fires emanating from the exterior of a… Read More

Concrete slab-on-grade foundations should be easy to insulate…but they are proving not to be easy to insulate.  We were here more than a half decade ago (BSI-059: Slab Happy, April 2012)… Read More

So does the air control layer go on the outside or the inside?  How about both sides?  How about one in the middle? Do I want one water control layer?  How about two or… Read More

It is pretty weird to dig a big hole and drop a building into it.  A one story house with a basement is really a two story house that you dropped into the ground burying one story. … Read More

It is just shocking, just shocking that some molecules have a positive electrical charge and a negative electrical charge.  Water is a molecule with one oxygen and two hydrogen atoms held… Read More

In 1666 London burned – the city, not a building.  It was called the “Great Fire of London”.  In 2017 a building burned, not the city.  It is being called the “Great Fire of London”.… Read More

Some folks hate foam insulation. The rigid board stuff, the spray stuff, the flexible stuff. They don't like the blowing agents, they don't like the fire retardants, they don't like the chemical… Read More

A wall is supposed to keep the outside out and the inside in. That is the way things are supposed to work. Check out the “perfect wall” (Figure 1). We have our water control layer, our air control… Read More

Sometimes the obvious is not so obvious. And sometimes the not so obvious becomes obvious. For example installing leaky ductwork1 in a vented attic is a pretty dumb idea (Figure 1). It leads to… Read More