When it comes to applying a metal shingle, slate or mechanically-fastened tile roof, you need an underlayment that protects your investment—fulfill that need with CertainTeed's MetaLayment.  A strong and pliable waterproof membrane that self-seals around nails and features a fast and easy self-adhering application method, MetaLayment is a versatile solution for superior protection from the elements.

Technical Information

MetaLayment is a film-surfaced, self-adhering underlayment designed especially for use beneath metal roofing. It has been designed to resist weather elements for 6 months to meet the needs of phased construction as well as designed to withstand the high temperatures commonly seen under metal, up to 250ºF. And, since MetaLayment meets ASTM D1970, it is also acceptable as an ice dam protection sheet under shingles, tile, and shake roofs.

  • Top Surface:  Tear Resistant Film
  • Back Surface:  Silicone-coated Release Film
  • Dimensions:  39-3/8" x 61' ( 200 sq. ft.)
  • Thickness:  1.5mm (60 mils)
  • Miami-Dade Product Control Acceptance:  Please see the Notice of Acceptance (NOA) to determine approved products by manufacturing location.


MetaLayment's adhesive bottom surface is protected with a disposable silicone coated release film, which is split down the middle for simple and cost-effective application.  The "Peal & Flop" method is especially effective in valleys and other difficult places using manageable lengths. 
For additional installation instructions, refer to the Underlayment Installation Instructions.

Warranty Details

MetaLayment is warranted against manufacturing defects for the same period as the warranty duration carried by the roofing material applied above it -- up to a maximum of 50 years.

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