Flashings can be joined together by various types of seam to avoid a plain lap joint without sealant. If the joint is likely to retain moisture and it is required to be sealed, the sealant should be introduced into the joint before it is completed.

Lap Seam

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Lock Seam

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Drive Cleat

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Standing Seam

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Pittsburgh Lock

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Revision Category: 
4 - Clause Inserted
Revision Detail: 

Split the drawing into eight individual drawings, for improved layout.

Draft Clause: