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Polyisocyanurate insulation is a common commercial and residential roof and wall insulation. It has one of the highest R-values per inch of thickness among common insulations. However, labeled R-… Read More

Gravity is the driving force behind drainage. The “down” direction harnesses the force of gravity and the “out” direction gets the water away from the building enclosure assemblies, openings,… Read More

  2x6 framing XPS insulating sheathing Fiberglass or cellulose cavity insulation in stud space   Scoring: How It Rates The scoring of each wall system is based on the following five categories. A… Read More

High performance precast concrete enclosure walls stand apart from most "rainscreen" walls in several key respects: how they control rain penetration, how they provide airtightness, and their… Read More

  2x6 wood frame wall at 24" o.c. Fiberglass or cellulose cavity insulation XPS insulating sheathing Furring creating a minimum 3/8" ventilation gap/drainage gap behind cladding   Introduction This… Read More

This overview summarizes the truss wall construction including the advantages and disadvantages of this construction strategy. Complex two dimensional heat flow analysis and one dimensional… Read More

This overview summarizes spray foam wall construction including the advantages and disadvantages of this construction strategy. Complex two dimensional heat flow analysis and one dimensional… Read More

This overview summarizes SIPs wall construction including the advantages and disadvantages of this construction strategy. A more detailed analysis and direct comparison to several other walls can be… Read More

This overview summarizes the offset frame wall construction including the advantages and disadvantages of this construction strategy. Complex two dimensional heat flow analysis and one dimensional… Read More