home Cofair Products Inc.
Deck Flash™ Barrier
Quick Roof™ Ultra Bond
NEW Quick Roof™ Clear Patch
Quick Coat™
EPDM Quick Roof™
Quick Roof™ Pro Aluminum
QuickRoof™ Double White
Roof Deck Seam Tape
Gutter Seal
Tite Seal All Purpose Flashing
Shingle Starter
Cover 'N Coat™
Gutter Seal Building materials roofing supplies mobile home repair
Window and Door Flashing
Original Tite-Seal™ for Doors and Windows
Tite-Seal™ Flex for Arched Windows and Sills
Tite-Seal™ Butyl with Steel-Loc Butyl adhesive
NEW Tite Seal™ Butyl Ultra - AAMA 711-13 approved
Tite-Seal™ Self-Adhesive Foam Threshold Sealer
Deck Flash Barrier Building materials roofing supplies mobile home repair
RV Roof Repairs

Quick Roof™ Extreme For RV's

Quick Roof™ Extreme Patch Kit

Quick Coat™

Quick Roof™ Pro Aluminum

Quick Roofs™ for Rubber Roofs

Rubber Roof Emergency Patch Kit

Re-Roofing Building materials roofing supplies mobile home repair
Decks and Driveways
Deck Flash Barrier™
NEW Butyl Deck Flash™

Driveway Medic Asphalt Repair Fabric

Re-Roofing Building materials roofing supplies mobile home repair
Pond Liner Tapes
Tite Seal ™ EPDM Pond Liner

Deck Flash™ Barrier

DECK FLASH BARRIER is a flexible polyethylene waterproof flashing
and barrier material, with a rubberized asphalt mastic adhesive.

Click here for a Catalog/Tear Sheet



When applied to the top of joists, around posts, and over ledger boards, Deck Flash Barrier creates a waterproof membrane that prevents wood rot and decay caused by moisture coming in contact with both treated and untreated lumber. Deck Flash Barrier's "Super Grip" rubberized asphalt adhesive self-seals around screws and nails, blocking a primary pathway for water infiltration into deck joists. By blocking moisture and preventing wood rot, Deck Flash Barrier maximizes the life of your new deck.


When Deck Flash Barrier is placed between ACQ, CA-B, or ACZA treated lumber and metal surfaces, such as galvanized metal and aluminum, it creates a physical barrier that prevents the corrosion of the metal surface caused by contact with the chemicals in treated lumber. It can be used to protect metal flashings and hangars at deck plates and sill plates, and anywhere treated lumber is used.


DECK JOISTS: Cut Deck Flash Barrier to the proper length. When applying to the tops and ends of deck joists, center over joist. Remove release paper and press in place. Firmly crease and fold Deck Flash Barrier over both sides of the joist. To maximize adhesion, roll with a small hand roller.

POSTS: When protecting posts, Deck Flash Barrier should be applied at the ground level with 2 to 3 inches extending above the finished grade. To determine the proper location on the post for product placement, insert the post in the hole, mark the post indicating the grade level, and then remove the post from the hole. To determine the proper length of Deck Flash Barrier to use, without removing the white release paper, wrap the material around the post, making sure that there is enough material for a minimum 3 inch overlap. Cut Deck Flash Barrier to proper length. Remove release paper and wrap around post while firmly pressing in place. To maximize adhesion, roll with a small hand roller. To provide additional protection against deep standing water around the post, a bead of non-silicone caulk may be applied to the top edge of the Deck Flash Barrier.

LEDGER BOARDS: Twelve inch Deck Flash Barrier is recommended to provide ledger board protection. It should be installed with a minimum of 3 inches of material up the wall of the building, and a minimum of 3 inches of material down the face of the ledger board. Always make sure that on the wall of the building, Deck Flash Barrier is installed under the house wrap or weather resistive barrier. To maximize adhesion, roll with a small hand roller.


  1. Deck Flash Barrier should be applied to clean dry surfaces when temperatures are a minimum of 40°F or warmer.
  2. If site conditions prevent proper adhesion, Deck Flash Barrier can be mechanically attached using staples or nails, or a construction grade spray adhesive can be used to increase adhesion.
  3. Deck Flash Barrier is designed to be covered by either deck boards or siding, and should not be exposed to direct sunlight for more than 90 days.
  4. Although Deck Flash Barrier has a slip-resistant surface, it may still be slippery. Extreme caution should be used when walking or standing on Deck Flash Barrier.

LIMITED WARRANTY: Cofair warrants this product to be of merchantable quality when used and/or applied in accordance with instructions hereon. Cofair does not warrant this product for any purpose or use other than the general purpose for which it is intended. Liability under this warranty is limited to the replacement of defective product as purchased. THIS LIMITED WARRANTY IS ISSUED IN LIEU OF ALL OTHER EXPRESSED AND IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF FITNESS, AND EXPRESSLY EXCLUDES LIABILITY FOR CONSEQUENTIAL DAMAGES.


Cofair Products Inc.
6135 Monroe Ct, Morton Grove, IL 60053
Phone 847-626-1500 • FAX 847-626-4900