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By creating a path for air to move, structural vents are supposed to prevent the buildup of moisture in an attic. This article was first published in Builder Magazine, January 2006.

This article reports on field experience of unvented cathedralized (UC) attics in the U.S. Traditionally, in some regions of the country, slab on grade construction is a preferred mode of… Read More

IntroductionThis guide provides information on how to construct vapor diffusion ports when using fiberglass and mineral wool insulation with conditioned unvented attics and unconditioned unvented… Read More

The purpose of this guide is to provide useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet… Read More

This guide describes ways to meet the roof venting requirements as per building code while converting the attic into living space by moving the insulation to the underside of the roof deck… Read More

Unvented roof assemblies can bring attic mechanical systems into conditioned space, negating ductwork losses. However, in previous work, unvented roofs with air-permeable (fibrous) insulation,… Read More

Unvented cathedralized attic (UCA) assemblies, created by eliminating ventilation and by moving the thermal insulation and air barrier from the ceiling plane to the rafters,… Read More

So here we are…ready for the “big show”…but not quite at the big show.  Think of it this way…to get to zero energy conservation takes us most of the way…and the last bit is the renewables piece… Read More

Snap, Crackle and Pop are beloved gnome characters…cartoon mascots of Rice Krispies breakfast cereal produced by a small company you might have heard of…Kellogg’s1.  Rice Krispies are one of the… Read More

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