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High-R Foundation 11: 4" XPS Insulation on the Exterior of Foundation Wall | Building Science Corporation


Foundation - 4" XPS Insulation in the Center of Foundation Wall

Dow STYROFOAM HIGHLOAD 40 2' x 4' x 8' Square Edge XPS Insulation Price pending

SMET PRODUCTS | EasylationWall - easy to apply stunning facades with XPS insulation

The Underfloor Heating Store xps insulation boards

Scrap XPS Insulation Fishing SUP Part 1 - YouTube

Foamular XPS insulation floor heating systems

from This Old House

How to Insulate a Basement

with general contractor Tom Silva | | from How to Insulate a Basement


Open-cell spray foam is an air barrier, but is vapor permeable. The figure above shows the XPS insulation detail required at the above grade portion of the foundation wall for cold climate construction to minimize moisture condensation at the cold concrete in the winter months, and minimize inward driven vapor in the summer months.


How to Install XPS (extruded polystyrene) foam-board insulation. Score-and-snap, no vapor barrier - it is not too difficult. XPS insulation has a lot to offer: click-thru to read about its specifications and installation instructions.