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Interior & Exterior Foundation Walls

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PlastiSpan® insulation board can be used either on the interior or exterior of the foundation wall to provide a monolithic thermal blanket which eliminates thermal shorts.

Interior Foundation Insulation
PlastiSpan insulation can be attached directly to the interior surface of the foundation wall. The National Building Code of Canada requires that interior exposed surfaces be covered using a thermal barrier, such as gypsum board, attached through the EPS to the foundation wall.

Exterior Foundation Insulation
With its outstanding resistance to moisture absorption, PlastiSpan insulation provides dependable long-term thermal performance when installed on the exterior face of the foundation wall. The use of exterior foundation insulation reduces the likelihood of frost heave under footings as compared to interior insulation.

For more information on foundation applications, view the brochure PlastiSpan Insulation Board - Exterior and Interior Foundation Walls. Simply click on the download pdf file button below to view this document.

pdf To view the design manual document on Interior and Exterior Foundations, click here.

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