Go to main content

    • EN
    • ES
    • Login
    • Sign Up
  • Browse shingles
    • Residential Roofing Materials
    • Shingles
    • Leak Barriers
    • Roof Underlayment
    • Hip and Ridge Cap Shingles
    • Ventilation and Roof Vents
    • Solar Shingles
    • Metal Roofing
    • Commercial Roofing Materials
    • TPO Roofing Membranes
    • PVC Roofing Membranes
    • Asphaltic Membranes
    • Insulation
    • Roof Coatings
    • Coverboards
    • Commercial Accessories and Components
    • Adhesives
    • Cleaners Primers Sealants and Cement
    • Fasteners and Plates
    • Perimeter Edge Metal
    • Underlayments
    • Skylights

    • Residential Building Materials
    • Fiber Cement Siding
    • House Vents and Ventilation
    • Ductwork
    • Commercial Building Materials
    • Roadway Maintenance Materials
    • Pavement Coatings
    • Structural Coatings

    • Find a Roofer Near Me
    • Match Me to a Contractor
    • Verify My Contractor Certification
    • Solar Roofers Near Me
    • Metal Roof Contractors Near Me
    • Virtual Home Remodeler
    • Shingle Color Guide
    • Our 1 Roof Shingle
    • Homeowner Education
    • Replacement Roof Costs
    • Parts of a Roof
    • Storm Damage Resources
    • Blog
    • Roof Warranties
    • Building Managers and Owners
    • View Project Profiles
    • Flat Roof Repair and Maintenance
    • Multi-family and HOA roof systems
    • Commercial Guarantees
    • Contractors
    • Contractor Rewards
    • Get Certified
    • Warranties
    • Residential Toolkit
    • Commercial Toolkit
    • Training by GAF CARE
    • Architects Design Pros
    • Design Resources
    • Roof System Specs
    • Sustainable Product Offerings
    • Commercial Design Services
    • Documents
    • Data Sheets
    • Details
    • Safety Data Sheets SDS
    • Sustainability documentation
    • Commercial Roofing Catalog
    • Custom System Packages
    • Roofing Resources
    • Partner Portal
    • Find a Distributor
    • Find a Rep
    • GAF QuickMeasure
    • ScopeConnect
    • Commercial Roof Builder Tool
    • Login
    • Sign Up
  • Browse shingles
    • EN
    • ES
Default Persona CTA
    • Residential Roofing Materials
    • Shingles
    • Leak Barriers
    • Roof Underlayment
    • Hip and Ridge Cap Shingles
    • Ventilation and Roof Vents
    • Solar Shingles
    • Metal Roofing
    • Commercial Roofing Materials
    • TPO Roofing Membranes
    • PVC Roofing Membranes
    • Asphaltic Membranes
    • Insulation
    • Roof Coatings
    • Coverboards
    • Commercial Accessories and Components
    • Adhesives
    • Cleaners Primers Sealants and Cement
    • Fasteners and Plates
    • Perimeter Edge Metal
    • Underlayments
    • Skylights

    • Residential Building Materials
    • Fiber Cement Siding
    • House Vents and Ventilation
    • Ductwork
    • Commercial Building Materials
    • Roadway Maintenance Materials
    • Pavement Coatings
    • Structural Coatings

    • Find a Roofer Near Me
    • Match Me to a Contractor
    • Verify My Contractor Certification
    • Solar Roofers Near Me
    • Metal Roof Contractors Near Me
    • Virtual Home Remodeler
    • Shingle Color Guide
    • Our 1 Roof Shingle
    • Homeowner Education
    • Replacement Roof Costs
    • Parts of a Roof
    • Storm Damage Resources
    • Blog
    • Roof Warranties
    • Building Managers and Owners
    • View Project Profiles
    • Flat Roof Repair and Maintenance
    • Multi-family and HOA roof systems
    • Commercial Guarantees
    • Contractors
    • Contractor Rewards
    • Get Certified
    • Warranties
    • Residential Toolkit
    • Commercial Toolkit
    • Training by GAF CARE
    • Architects Design Pros
    • Design Resources
    • Roof System Specs
    • Sustainable Product Offerings
    • Commercial Design Services
    • Documents
    • Data Sheets
    • Details
    • Safety Data Sheets SDS
    • Sustainability documentation
    • Commercial Roofing Catalog
    • Custom System Packages
    • Roofing Resources
    • Partner Portal
    • Find a Distributor
    • Find a Rep
    • GAF QuickMeasure
    • ScopeConnect
    • Commercial Roof Builder Tool
    • Login
    • Sign Up
  • Browse shingles
    • EN
    • ES

  • Roofing membrane with ponding water after rain.

    Mitigating Water on Roofs

    Since the first shelters were constructed by humans, the primary purpose of roofing has been to protect against the elements, especially water on roofs from rain and snow. Modern building science has expanded this focus to include temperature regulation, moisture management, and air tightness, but managing liquid water on roofs remains one of the most critical factors in roof design.

    July 01, 2025

  • Product Image
    Commercial Roofing

    DEC 11 2024 : TEST Siplast text blog article

    Paradiene 20 is the first ply of Paradiene 20/30 Systems. The base ply is an elastomeric asphalt blend reinforced with a fiberglass mat that absorbs roof stresses, while the granule-surfaced top ply, Paradiene 30 or Parafor 30, shields the base from the elements and mechanical abuse. These high-performance modified bitumen base plies can be applied in approved Type III or Type IV asphalt, PA-1000 Polymer Asphalt, Siplast PA-311 Adhesives, or SFT Adhesive.

    December 10, 2024

  • Image
    In Your Community

    Beyond the Roof: Celebrating GAF Employees for Their Commitment

    November 15, 2023

  • A newly installed GAF TimberSteel™ Premium Metal Roofing System in Rustic Red

    Unpacking the GAF TimberSteel™ System and the Benefits of Premium Metal Roofs

    Thinking of adding metal roofing to your business offerings? Between its high-performance materials, easy installation, and industry-leading warranties, your customers will love getting a new GAF TimberSteel™ premium metal roofing system.

    April 25, 2025

  • Close-up of a modern home featuring a gray gutter system and window, showcasing sleek architectural

    Gutter Color Trends: The Ultimate Exterior Mood Board

    Gutter color is the unsung hero of a home's curb appeal. Gutters do so much more than divert water. They frame your home's architectural lines and enhance your roof's design. They can also derail a home's style when the colors are not a good match. That's why choosing a gutter color, instead of throwing gutters on as an afterthought, can take your home from "nice" to "knockout."

    December 18, 2025

  • Close-up of a modern home featuring a gray gutter system and window, showcasing sleek architectural

    Gutter Color Trends: The Ultimate Exterior Mood Board

  • A commercial roofer installs GAF product on a commercial roof

    The Key to Resilience in the Face of a Changing Business Climate

  • Drone Images of TPO Commercial Roof With Some Metal Panels and a Clock Cupola
    Commercial Roofing

    Commercial Roofing Testing Code Drop 0

  • How Foot Traffic Impacts Roof Longevity
    Commercial Roofing

    How Foot Traffic Impacts Roof Longevity

The Company
Work With Us
Quick Links
Related Businesses