Change Of Pitch

Differential movement will happen at any change of roof cladding pitch where the sheets are overlapped and butted together. This movement causes noise and deterioration of the coating. A separate apron flashing as shown in Change of Pitch Junction Flashing is required to prevent that.

A junction flashing must be used where sheeting is cut at a change of pitch. The junction must be hooked and have the minimum coverage as required according to the exposure category in Flashing Laps. The underlay must overlap the flashing as shown.


Revision Category: 
3 - Substantial change to recommendation
Revision Detail: 

Completely revised clause. Drawings updated.

Draft Clause: