Thru-Wall Flashing:

PERM-A-BARRIER® (Rubberized Asphalt)

Perm-A-Barrier® Flashing

Perm-A-Barrier® is a 40 mil self-adhering, self-sealing, self-healing, rubberized asphalt and polyethylene composite membrane that provides multi-level thru-wall flashing protection by limiting water intrusion and diverting infiltrated moisture back to the exterior. It’s high-density polyethylene composition resists punctures, tears, abrasion and corrosion. Perm-A-Barrier® flashing adheres to masonry, steel, concrete, block, gypsum and wood substrates.

Available in:

  • 12″, 18″, 24″ or 36″ wide x 75′ Rolls

Bituthene Mastic

A rubberized asphalt-based mastic. It has excellent adhesion to structural concrete, masonry and wood and is designed to seal terminations, edges of patches, and overlaps in detail areas. It is an integral part of the Bituthene Waterproofing System, though it should not be used as a primary waterproofing material.

Available in:

  • Quart tube

Perm-A-Barrier® Adhesive

Perm-A-Barrier® Adhesive imparts an aggressive,  high tack finish on the treated substrate. It is
specifically designed to facilitate tenacious adhesion of Perm-A-Barrier self-adhered membranes to various substrates.

Available in:

  • 5 Gallon pail

Perm-A-Barrier® WB Primer

Perm-A-Barrier® WB Primer is a water-based primer which imparts an aggressive, high tack finish on the treated substrate.

Available in:

  • 1 Gallon pail
  • 5 Gallon pail


Aqua Flash 500 Flashing

Composite sheet type waterproofing membrane consisting of 8 mils of high density cross laminated polyethylene bonded to 32 mils of rubberized asphalt for a total thickness of 40 mils.
With a removable release liner. Self-sealing, self-sticking, self-healing whereby the adhesive will elongate and recover if somewhat damaged. Has excellent puncture resistance.

Available in:

  • 12″, 16″, 18″, 24″ and 36″ wide X 50′ Rolls


Copper Fabric & Copper Coated Flashing

The highest quality laminated copper flashing on the market today. The two layers of dense glass fabric and a special blended waterproof adhesive are laminated to the copper core to produce greater tensile strength and improve puncture resistance. The composition of copper, glass fabric, and laminate will ensure a permanent bond in the mortar joint and protection from moisture.

Available in:

  • 3 & 5 oz.
  • 16″, 18″, 24″ or 36″ wide rolls x 25′ long
  • Will slit to multiple widths


FlashGard Thru-Wall – 40 mil Flashing

High performance, flexible membrane alternative for protecting masonry walls from water penetration. It is based on EPDM (ethylene propylene diene terpolymer) synthetic rubber. FlashGard Membrane forms a barrier to moisture ingress in cavity wall construction by directing water to a building’s exterior.

Available in:

  • 12″, 16″, 18″, 20″, 24″ or 36″ wide X 50′ Rolls

Firestone FlashGard (2-Sided) Adhesive Tape

Seam Tape

Designed for splicing of FlashGard membrane panels and for attaching FlashGard membrane to substrates as allowed by Firestone FlashGard Thru-Wall Flashing specifications.

Available in:

  • 1-1/2″ x 50′ Rolls (2-Sided)

Lap Sealant HS

Designed for seam edge sealant of FlashGard standard and SA (self-adhering) flashing membranes as required by Firestone details.

Available in:

  • 11 oz. tube


Drip Edge Flashing

Hemmed Drip Edge (use in conjunction with membrane or laminated flashings)

Available in:

  • 3″ x 1/2″ x 10′-0″ lengths: 28 Gauge Metal – Type 304 / 2D Finish
  • 3″ x 3/8″ x 8′-0″ lengths: 26 Gauge Metal – Type 304 / 2D Finish

Please call for custom sizes and other finishes!

Stainless Steel Thru-Wall Flashing

Hemmed Drip Edges (use in conjunction with other membrane or laminated flashings)


  • 28 Gauge Metal – Type 304 / 2D Finish

Please call for other gauges, finishes and custom sizes!

Lap Rite™

Lap Rite™ is a one part non-skinning butyl metal flashing sealant formulated to seal laps.

Available in:

  • 10 oz. tube


Termination Bar

Securing flashing edge to the wall.

Available in:

  • PVC – 1/8″ X 1-1/8″ with 5/16″ diameter holes 8″ oc.
  • Stainless Steel – 1/8″ X 1″ with 5/16″ diameter holes 16″ oc.
  • Aluminum – 1/8″ X 1″ with 5/16″ diameter holes 16″ oc.

Fasteners for CMU & Concrete Backup

This Zamac Hammer-Screw is unique, one-step drive anchor featuring a Phillips type head and a screw thread for use in concrete, block, brick or stone.

Available in:

  • 1/4″ X 1-1/4″ Hammer drive anchor


  • Electro Galvanized

Fasteners for Metal Stud Backup

#10 X 1-1/2″ Hex Washer head Self Drilling (Tek) with attached neoprene washer.


  • Climaseal coated

Scots® Stainless Steel Head

(Metal Stud)

12-14 x 1-7/8″ Hex Washer Head Scots® Teks 3 Fastener. Self Drilling (Tek) with attached neoprene washer. Drill point #3.


  • Stainless Steel Head

Fasteners for Wood Stud Backup

#9 X 2″ Hex Washer head Self Drilling (Tek) with attached neoprene washer.


  • Climaseal Coated

Single Wythe Flashing:

BlockFlash® Flashing Pan System

BlockFlash® is an embeddable flashing pan for exterior single wythe CMU wall systems. It collects moisture that infiltrates the wall and flows down the vertical cores and diverts it to the exterior. BlockFlash® is a single wythe CMU flashing system that is useful at all flashing/weep hole locations including base of wall, above door and window openings, above bond beams, in parapet walls, basements and any other locations where flashing is necessary. Formerly known as Blok-Flash.

Available in:

  • 6″ CMU
  • 8″ CMU
  • 10″ CMU
  • 12″ CMU


Generic Wall Design

The economy and functionality of these details (which include the most common thru-wall flashing locations) will compliment masonry’s inherent quality as a durable building material.

Visit Masonry Institute of Michigan for the Generic Wall Design Single Wythe Exterior Details


Generic wall designs focus on provisions to minimize and control rain penetration. Structural, aesthetic and other environmental issues, i.e.: fire resistance, thermal performance, condensation and sound control are not addressed.