Hohmann & Barnard, Inc.
30 Rasons Court
P.O. Box 5270
Hauppauge, NY 11788-0270
Telephone: (516) 234-0600
FAX: (516) 234-0683
Website: http://www.h-b.com/

Why Copper Flashing?

Copper has been proven to be the best material for use as a thru-wall flashing. This is due to copper's natural ability to resist the acidic and alkalinic action that is found in uncured mortar. Additionally, copper is not permeable to water and unlike PVC flashings will not shrink or become brittle. Copper is rigid enough to hold its shape when formed on the jobsite but pliable enough for easy shaping to meet flashing details. Copper is the superior choice for long-lasting, worry-free flashings.

Uses, Applications

Laminated copper thru-wall flashings are used to protect concealed areas of a wall from water and vapor penetration. Typical locations requiring the use of flashing are: parapets, door & window sills, projecting courses, spandrel beams, and concrete foundations. All of these areas require flashing to form a water-tight barrier and to redirect the water back to the exterior of the building.

Installation

Thru-wall flashing should start 1/2" from the outside face of the wall, carry through the wall, turning up where possible to allow for drainage through weepholes. Flashing should turn up on the back wall at least 2" or carry upward across the cavity a minimum of 6" and secure to the back wall mortar joint or reglet. The exposed flashing should be cut flush with the exterior face of the wall after completion. Complete installation of procedures for all Hohmann & Barnard, Inc. thru-wall flashings are available upon request.

Technical Support

Hohmann & Barnard, Inc. has complete specification bulletins available for each of its products as well as qualified product representatives to aid in the selection and use of its products. For additional information or technical support call 516-234-0600.

Advantages

Our copper fabric flashing is permanently bonded together to provide excellent protection under all thru-wall conditions. A full sheet of copper, coated with asphalt on both sides, is bonded under pressure between two layers of asphalt-saturated glass fabric. Light, flexible, and rigid enough to maintain its shape when formed by hand on the job.

Sizes

Furnished in rolls of 25 lineal feet. Standard widths are 12", 16", 18", 24" & 36". Non-standard sizes and configurations are available by special order.

Advantages

The flexibility and toughness of copper are combined with the superior waterproofing of an elastic, asphalt compound coating. The sheet copper is shielded from acids, alkalis and electrolysis that may be present in uncured mortar. The asphalt coating is self-sealing in case of puncture.

Sizes

Furnished in rolls of 25 lineal feet. Standard widths are 12", 16", 18", 24" & 36". Non-standard sizes and configurations are available by special order.

Advantages

Low in cost, flexible and easy to handle. A full sheet of copper is combined under pressure with two layers of creped kraft paper saturated in waterproofing asphalt. The heavy asphalt concentration in the layers of kraft paper, in addition to the asphalt bond between the copper and paper layers, assures efficient waterproofing.

Sizes

Furnished in rolls of 60 lineal feet. Standard widths are 12", 16", 18", 24" & 36". Non-standard sizes and configurations are available by special order.

Advantages

The superior qualities of copper are combined with a tough sheet of heavy creped kraft paper asphalt bonded to protect the copper during installation. This economical solution provides a permanent waterproofing solution that is easily formed at the job site.

Sizes

Furnished in rolls of 60 lineal feet. Standard widths are 12", 16", 18", 24" & 36". Non-standard sizes and configurations are available by special order.

Textroflash's strength, pliability, ease of use and self-sealing properties combine to make it a superior flashing product.

• 40 mil thick cross-laminated polyethylene/rubberized asphalt.
• Adhesive-backed with removable release paper.
• Provides dual layered waterproofing protection.
• Resists tearing and slicing.
• Self-seals around shaft of fasteners.
• Laps easily, just press at overlap.
• Corners easily formed on site.

Fiberweb 200 comprised of polyester film 20x10 fiberglass scrim and a layer of vinyl film. Designed for and approved by the Army Corps of Engineers under Guide Spec. CEGS-07600–average mil thickness of 8 mils.
Fiberweb 300 comprised of 1/3 mil metal foil laminated between layers of Mylar^® polyester film bonded to a 20x10 fiberglass scrim reinforcement–average thickness of 7 mils.

• High puncture and tear resistance.
• No shrinking or sagging.
• Flexible at temperature extremes.
• Easily cut and formed.
• Labor-saving tape system for joints and repair.
• Shown with termination bar.
• Stainless steel drip plate optional.

• Available in type 304 stainless steel.
• Also available in copper, aluminum, mill galvanized or terne-coated stainless steel.
• Profiles, sizes and gauges to suit job conditions.
• Shown as relief angle flashing, also available as thru-wall and parapet flashing.
• Pre-formed drip edge allows efficient passage of water to outside of building.
• Shown with termination bar.

Used at top of flashing to mechanically secure it to backup.

• Type 304 stainless steel.
• Holes spaced 16 in. or 24 in. o.c.
• T1 is standard style 1/8 in. x 1 in.
• T2 is single-winged style, available in gauges 18-24.
• T3 is double-winged style available in 22 or 24 gauge.

Embedded into mortar joint of masonry backup to accept flashing.

• Built-in face piece keeps mortar out as construction progresses, yet easily tears off prior to installation of flashing.
• Fits into 3/8 in. mortar joint.
• 10 ft. lengths.
• 5/8 in. internal depth, 1 1/4 in. o.a. depth.
• Made of rigid PVC.

Attaches easily to form for poured concrete conditions.

• Built in face piece keeps mortar out, yet easily tears off prior to installation of flashing.
• 3/4 in. deep x 10 ft. lengths.
• Made of rigid PVC.