Block-It Flashing Tape - 75' Roll

Quick ID: Q30816
from $49.97
Ships Free with $99 Order
from $49.97

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The Block-It Flashing Tape is a UV-resistant polyolefin coated fabric, single coated with a butyl rubber adhesive providing energy efficiency around doors and windows.

The tape has UV resistance with excellent aging properties of up to 90 days and long-term adhesion to a variety of building surface substrates including OSB. The asphalt-free adhesive will not stain surface and the superior cold flow leads to an exceptional ability to seal around nails. It can be applied between 20 to 110 degrees F.


  • UV-resistant, polyolefin-coated fabric, single coated with a butyl rubber adhesive
  • Energy efficiency around doors and windows
  • Seamless protection against moisture during construction and after siding is installed
  • Long-term adhesion to a variety of surfaces including OSB and other standard building substrates
  • Exceptional nail sealability
  • Asphalt-free adhesive will not stain surfaces
  • 100% VOC free


Sub BrandBlock-It
Can Be Cut to LengthYes
Code ApprovalExceeds AAMA 711-07
Compatible MaterialsBlock-It House Wrap
Installation Temperature20 to 110 Degrees F
Length - Feet75
Package Quantity1
StorageIn Cool, Dry Place Below 76 Degree F. Rolls Should be Stored on End.
Tensile Strength - PSI18
Thickness - Inches16 mils
Ships to HI/AKNo