THE FIRST FAMILY OF FLASHING

3-Way Interlocking Thruwall Flashing

USE -

A preformed metal flashing designed to provide life of the building moisture protection in masonry structures. Use at floor levels, beneath sills, over lintels, continuous at spandrel beams, beneath copings and elsewhere as required.

TYPE -

Three Way Bond lnterlocking Type with 3/16" high undercut sawtooth ribs at 3" intervals to provide a three way mechanical bond in the mortar bed and insure rapid drainage of moisture to the exterior. Interlocking feature provides for watertight joints without the use of sealant or solder except at corners and special conditions. (see Figures 7 - 12)

GAUGE / SIZES -

All products are available in stainless steel, copper, lead-coated copper, and Freedom Gray by Revere. These products come in different gauges and weights per request (see order form).

Order form

INSTALLATION -

Concealed flashings should extended through the wall, stepping up at least one brick course to promote drainage and terminate with a minimum 2" turn up at the interface. Where a turn up is impractical the flashing should terminate with a 1/4" hook dam approximately 1" back from the inside face of the wall.

Lintel and still flashings should extend at least 4" beyond the jambs of openings or have end dams forming a pan. Flashings at spandrel beams should be continuous. At vertical limitations the flashing should be turned up a minimum of 2" and sealed.

All flashing should be set with a thin bed of mortar below and above with care being taken to ensure that the mortar completely fills the bonding ribs.

Two-Piece Cap Flashing

USE -

A performed two piece cap flashing used for counter flashing where flat roofs abut rising walls. The receiver portion is built in during construction leaving only the locking slot exposed. After installation of the roof, the insert member is snapped in place providing a spring like hug against the base flashing. When repair or replacement of the roof is required the insert may be removed and reused.

TYPES -

Four receiver types are available to suit most flashing requirements. All have a continuous locking slot and self aligning tongue to assure proper joint alignment. Thru-wall receivers have 3/16" high undercut sawtooth ribs at 3" intervals for bonding in the mortar bed. The 1" in the wall receiver is for use in existing masonry. Surface mounted receivers are supplied with or without sealant flange. The 4" in the wall flat receiver is for use in areas where mortar bonding is not required.

GUAGE / SIZES -

All products are available in stainless steel, copper, lead-coated copper, and Freedom Gray by Revere. These products come in different gauges and weights per request. These products are also available in painted metal (see color chart below).

INSTALLATION -

Thru-wall Receiver: Extend through the wall and turn up minimum 2" or terminate with a 1/4" hook dam. Set with a thin bed of mortar below and above with care taken to insure the mortar completely fills the bonding keys.

Surface Mounted Receiver: Secure receiver to wall with fasteners at 10" centers. Type of fastener depends on surface to which flashing is to applied. Unless upper portion of receiver is to be covered with stucco or siding the sealant flange is to be filled continuously with a high grade sealant.

1" In the Wall Receiver: Saw cut existing wall to a depth of 1". Install receiver in saw cut, secure with lead wedges 10" on centers and apply a continuous bead of high grade sealant.

4" In the Wall Flat Receiver: Receiver extends 4" into the wall and terminates with a 1/4" hook dam. All receivers should be installed a minimum of 6" above the top of the cant strip.

Cap Flashing Inserts: The cap flashing insert member is installed with an upward push into the vertical locking slot where thumb nail notches hold it securely in place.

SPECIFICATIONS -

Cap flashings in walls where flat roods abut shall be two piece type as manufactured by Keystone Flashing Co., Philadelphia, PA. Receiver shall be formed of (gauge/material) with a special vertical locking slot that requires no malleting or bending to hold the insert member in place. Combination receivers and thru-wall flashing shall have 3/16" high undercut sawtooth ribs at 3" intervals to provide a mechanical bond in the mortar bed in all three directions. The insert members shall be formed of (gauge/materials) and designed to snap lock into the receiver portion and provide a spring like hug against the base flashing. Thru-wall receivers shall be set with a thin bed of mortar below and above. Install counter flashing insert members with end joints lapped 3".

(More photographs of Two Piece Flashing examples are available in our photo gallery)

Photo gallery

FLAT SMOOTH TYPES

Keystone Flashing Company also manufactures a wide array of flat/smooth rigid sheet metal flashing. This type is used in the same way as our specialty three-way flashing. This product is usually specified where a mortar bond is not required or necessary.

In addition to thru-wall flashing smooth type, other products that fall into this category are standard inside/outside thru-wall corners, standard inside/outside drip edges, drip edge corners, standard end dams, and type 26 gauge termination bar.

Please see our order form for more information and specific pricing.

All products are available in stainless steel, copper, lead-coated copper, and Freedom Gray by Revere. These products are available in different gauges and weights as well as in painted metals, as seen below.

Order form

Specialty products

Keystone Flashing manufactures specialty sheet metal products as well as the products listed above. These include dowel caps, scupper boxes, date stone boxes, and radius flashing in flat/smooth and 3-way as per the pictures below.

We are a full service sheet metal house and have provided finished sheet metal products for the restaurant and food service industries. Please contact us if you do not see the product you need.