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PlastiSpan Exterior Foundation Insulation for Commercial Construction

December 16, 2013

Plasti-FabWritten by: Melissa Carruthers
Follow me on Twitter @MelissaC_PFB

To date we have covered grade beams, compressible fill material, ICF frost walls, and under slab insulation for our commercial structure.  The use of Plasti-Fab EPS in these applications provides not only thermal resistance, but a compressible solution in situations where it is required. We move on to the perimeter of the building in this week’s blog on exterior foundation insulation.

Commercial-Insulation-Solutions-Perimeter-insulation

PlastiSpan HD insulation can be used for both exterior and interior perimeter applications. It can be applied to the exterior perimeter of either a footing or foundation and then covered with backfill. Please note the below grade portion of the insulation should be damp proofed or waterproofed as required. PlastiSpan HD insulation can be applied using an adhesive like PL300 or another foam safe adhesive so it stays in place when the back fill is applied. When applied to the exterior of the wall, the exposed surface above grade must be protected using a galvanized iron flashing or another suitable method.

3D RenderingWhile you’re Insulating the exterior you may as well insulate the interior too. The insulation may be placed of the interior of a foundation wall to increase floor temperature. There are often thermal shorts where the wall and foundation insulation do not overlap. The insulation is covered and usually placed in a well-drained location ensuring continued effectiveness.

PlastiSpan HD insulation around the foundation creates a continuous blanket of insulation over an exposed wall. It is often applied to the exterior and should extend from the edge of the wall insulation or top of the foundation down to at least 24” into the soil. Hold the PlastiSpan HD insulation in place with a few spots of asphalt mastic until the protective covering and the soil has been placed. Protect using a galvanized iron flashing or Portland cement stucco and then install a metal flashing along the top edge to act as a water deflector. Extend the finish into the soil only to a sufficient depth to prevent insulation exposure.

This is our last blog in our commercial series until after the first of the year. We will resume our series again on January 6th with our blog on different exterior sheathing solutions for commercial buildings. If you have any questions about the material you have read, or about our products in general, visit the web site www.plastifab.com  or contact us today at 1-88.THINK EPS® (1-888-446-5377).

2 Comments leave one →
  1. 45 DON permalink
    January 19, 2014 8:25 am

    IS YOUR PERODICT OK FOR A CELING WERE MORE INSOLATION IS NEEDED . IF SO CAN I NAIL AND GLUE THE SHEETS TO PARTICAL BORD AND WHAT KIND OF GLUE TO USE THANKS FOR YOUR HELP GREAT PERODICT

    • January 27, 2014 9:47 am

      Hello Don,
      The answer is ‘yes’, additional sheets of rigid insulation can be fastened to the Oriented Strand Board (OSB) sheathing of a Structural Insulated Panel (SIP). The insulation can be mechanically fastened with the use of screws and/or nails; or adhered using adhesive that is not corrosive to expanded polystyrene.

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