Rainproof-40™

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Rainproof-40™ High Performance Roof Underlayment

Rainproof-40 High Performance Roof Underlayment is a cold applied self-adhering SBS modified, rubberized asphalt sheet waterproofing underlayment. Rainproof-40 is internally reinforced with a strong non-woven polyester fabric. The membrane has a white reflective fabric topping. It is used as a complete waterproof roofing underlayment on new and retro-fit* roofs under most roof coverings. Can be used at low slope areas, hip, ridge, valleys, rake edges, confined rake edges, around skylights and chimneys.

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Features & Benefits

  • 6 month exposure rating
  • Fully self adhered roofing underlayment system
  • 2½” zip strip release liner for ease of edge overlap adhesion
  • Durable White reflective topping for added footing safety and heat reduction
  • Seals around properly installed fasteners
  • Can be installed Horizontally or Vertically (as code allows)
  • Florida Product Approval FL# 41542
  • Miami Dade NOA #22-0425.02
  • Can be installed on roof pitches down to 2”/12” (for lower slopes contact your Protecto Wrap Representative.)
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Technical Resources

Literature

Literature

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Technical Data

Technical Data

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Safety Data Sheet

Safety Data Sheet

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IAPMO 390 Evaluation Report

IAPMO 390 Evaluation Report

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