Insulating Over Sub Floor with Radiant Heat

Insulation Over Sub Floor with Radiant Heat

Installation Instructions

  • Note: For all methods (retrofit), inspect the structural integrity of the sub-floor, and make any needed repairs before installing InfraStop®.

  • Butt the seams of the product and seal with 3” wide poly tape. Note: Utilize a flat edge taping tool to assure good adhesion on all tape.

  • Install Radiant Floor System per manufacturer’s specifications, sleepers and new (top) subfloor.

Standard Size Rolls for Insulation Over Sub Floor

Custom Size Rolls for Insulation Over Sub Floor

Thermal Insulation

R-1.1 - Insulation Over Sub Floor Radiant Heat

Product Information

InfraStop® Insulation products are a group of technologically advanced materials. They are ideal for new construction or retrofit applications in commercial, industrial, metal and post/frame buildings, along with many other DIY applications. When you think of insulation, you should think of InfraStop®. Our products are recognized for their thermal performance, easy installation, versatility, price and environmental friendliness.


  • Easy to handle and install
  • Convenient roll sizes
  • Class A / Class 1 Fire Rating
  • Inhibits dew point condensation
  • Vapor retarder (0.02 perms)
  • Does not compress, collapse or disintegrate
  • Non-toxic / non-carcinogenic

Testing and Certification

InfraStop® products are thoroughly tested at either nationally approved independent laboratories or leading universities. Tests are performed to current American Society of Testing and Materials (ASTM) standards when a standard exists. For a copy of an actual test report, please e-mail us at

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