Duro-last Parapet Flashing User Manual download pdf

Duro-Last: The Proven Performer®

"Duro-Last" and "The World's Best Roof" are registered marks owned by Duro-Last , Inc.

www.duro-last.com

800-248-0280

DATA SHEET

2009

DURO-LAST® PARAPET FLASHING

Description:

Duro-Last® Parapet Flashing is made with Duro-Last specially formulated

roofing membrane. The combination of reinforced membrane and

prefabrication ensures a long lasting, watertight flashing. The membrane is

available in white, tan, gray and dark gray colors as well as in the Designer

Series membranes (slate gray Shingle-Ply, sandstone Shingle-Ply and Rock

Ply).

Heat welding (hot-air) is used to seam sections of parapet flashing together

and also to seam the parapet flashing to the Duro-Last membrane on the

roof deck. Welds can be made with a hand-held unit or automatic welder.

The flashing can be mechanically attached or adhered to walls. No matter

the method of attachment, mechanical fasteners must be used to secure

roof-to-wall transitions and changes in slope, such as steps in the wall profile.

The example drawings on this page will help in understanding the following

installation guidelines as well as aid in the understanding the fastener tab

spacing that is specified when ordering these prefabricated flashings.

Mechanical Attachment:

If the parapet flashing is to be extended up the wall a short distance and

terminated, such as shown in Example #1, the termination height must be at

least 8 in. above the roof deck. If the termination height exceeds 28 in. at

least one row of fasteners must be used to attach the flashing to the wall as

shown in example #2.

When multiple rows of fasteners are required, such as shown in Example #3,

the maximum spacing between rows, or between a row of fasteners and the

top of the wall, is 28 in.

Refer to the Duro-Last Mechanically Attached Systems specification for

substrate and fastener requirements.

Adhered Attachment:

Parapet flashing may be adhered to the wall with adhesive supplied by

Duro-Last. The minimum termination height is 8 in. above the roof deck. If

the termination height exceeds 60 in., at least one row of mechanical

fasteners must be used.

On tall walls multiple rows of fasteners may be required. The maximum

spacing between rows, or between a row of fasteners and the top of the

wall, is 60 in.

Refer to the Duro-Last Adhered System specification for substrate and

adhesive requirements.

® PARAPET FLASHING 1

Summary of Contents

Page 1 - ® PARAPET FLASHING

Duro-Last: The Proven Performer®"Duro-Last" and "The World's Best Roof" are registered marks owned by Duro-Last , Inc.www.dur

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Duro-last Parapet Flashing User Manual

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