Once the engineered wood sheathing panels are up,
complete the ForceField® Weather Barrier System with seam
tape, flashing and corner seal accessories.

Explore ForceField and DensDefy™ Accessories from Georgia-Pacific to learn how the innovative design of each product works
with the sheathing to create a continuous barrier.

Weather Resistive

Install in damp conditions for faster project completion.


Compatible with other Georgia-Pacific products across the envelope.

Faster to Done

Easy installation saves on time and labor costs.


The most essential solutions you can use to protect seams on residential, multi-family and
light commercial builds are ForceField® Seam Tape Plus and ForceField® Seam Tape.

ForceField® Seam Tape Plus

This high-quality, pressure-sensitive seam tape is recommended for treating joints on all of your builds for excellent air and water protection.


  • Proprietary adhesive technology on a high-performance polypropylene film
  • Thin and easy to work with, yet durable and strong
  • Offers excellent tear and impact resistance
  • Can be used to treat seams, penetrations and transitions to flashing or flanges
  • UV and weather resistant
  • Over 600% elongation, per ASTM D1970, allowing for movement

Sizes and Packaging

Roll Size: 3.5” wide x 90’ long

Thickness: Minimum 0.006”

Packaging: 12 rolls per case

ForceField® Seam Tape

This advanced seam tape is specially designed for treating joints and detailing penetrations. It is ideal for maintaining the continuity of the air and moisture barrier on residential structures.


  • Pressure-sensitive coated polymeric film used for treating joints
  • Serrated for easy tearing
  • A constant bond may be achieved with moderate pressure and does not require applicator tools
  • UV and weather resistant – performs in temperatures as low as 0°F
  • Tested per PSTC 101 (Peel Adhesion for Pressure Sensitive Tapes) and PSTC 131 (Breaking Strength and Elongation of Pressure Sensitive Tapes)

Sizes and Packaging

Roll Size: 3” wide x 180’ long

Thickness: Minimum 0.003”

Packaging: 8 rolls per case


Leave no gap behind. Finish your build with the ForceField® Accessories that treat every detail,
making weather barrier system installation easy and efficient.

ForceField® Flex Flashing Tape

This conformable, self-adhered flashing tape that wraps easily around windows and other curved and
rough openings. It is ideal for use on window flanges, sill plates, corners and joints to improve air
and water holdout.


  • Two-ply oriented high-density film mated to a premium butyl rubber adhesive
    and release sheet
  • High-performance butyl is designed to maintain the continuity of the air
    and water-resistive barrier

Sizes and Packaging

Roll Sizes:

• 6” wide x 75’ long
• 9” wide x 75’ long

Thickness: Minimum 0.012”

Packaging: 2 rolls per case

AT Flashing

This pressure-sensitive, adhesive-based product is used to treat openings and material transitions. It is
designed to adhere to construction surfaces without primer or conditioning.


  • Provides protection from air and moisture

Sizes and Packaging

Roll Size: 4” wide x 75’ long

Thickness: Minimum 0.012”

Packaging: 4 rolls per case

ForceField® Corner Seal

This semi-rigid polypropylene seal creates a “living hinge” to simplify the detailing of inside and outside
exterior corners, protecting your builds against air and water intrusion in some of the traditionally most
difficult areas to treat.


  • 4” wide, semi-rigid polypropylene with a “living hinge” for bending angles
  • Adheres to panels with seam tape
  • Provides additional protection against air and moisture intrusion

Sizes and Packaging

Roll Size: 4” wide x 200’ long

Thickness: 0.03”

Packaging: 1 roll per case


Our premium building envelope products, DensDefy™ Accessories are compatible with ForceField® Panels and other
system accessories to protect and perform at the highest level.

DensDefy™ Liquid Flashing

This detailing compound protects rough openings, penetrations, joints, sheathing fasteners and
seams—eliminating the need for joint reinforcing tape and reducing installation time.


  • Waterproofing, adhesive and detailing compound made with STP Technology
  • Creates a highly durable continuous elastomeric flashing membrane
  • Bonds and cures in adverse weather conditions and may be applied to damp surfaces
  • Tolerates rain immediately after application
  • Backed by a Georgia-Pacific limited warranty
  • AAMA 714 Certified

Sizes and Packaging

Available in a 20 oz. sausage for professional gun application.

20 sausages per case

Available as individual rolls on Amazon

DensDefy™ Transition Membrane

This impermeable, self-adhered sheet is designed for use as a rough opening flashing and transition
membrane for connecting dissimilar materials to maintain air and moisture barrier continuity.


  • 25-mil composite impermeable membrane
  • Comprised of 16 mils of butyl adhesive and 9 mils of HDPP facer
  • Bonds to most surfaces, such as glass mat gypsum sheathing, poured concrete,
    masonry, steel and wood-based substrates
  • Ideal for:
    • Drift or control joints
    • Vertical expansion joints
    • Gaps greater than 1”
    • Transitions between dissimilar materials
  • Primerless application allows for faster installation time
  • Backed by a Georgia-Pacific limited warranty
  • AAMA 711 Certified

Sizes and Packaging

6” wide x 75’ long; 8 rolls per case

9” wide x 75’ long; 4 rolls per case

12” wide x 75’ long; 4 rolls per case Available as individual rolls on Amazon

ForceField® Weather Barrier System Installation Instructions

Read More

ForceField® Weather Barrier System Brochure

Read More

APA Product Report

Read More

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