Home Detailed application Diamond Trim Application A170/A200 - Trim Application

A170/A200 - Trim Application

Application Instructions

The A type trim is a drip trim, fitted to the lowest edge of the roof usually where the rainwater flows into the gutter. Two support battens should be fixed to the perimeter of the roof to provide space for the gutter to fit behind the trim, with the outer batten attached 10mm lower than the inner batten to allow the trim to sit flush with the roof. Apply trim adhesive to the batten in 30mm beads at 300mm centres, rub the trim into place and nail to the decking. Do not nail through the front of the trim. If the pitch of the roof is only minimal, rainwater is likely to hold  behind the trim. A planning machine can be used to take 2mm off the deck to allow the trim to lay flush with the board.

Trim Details

A170: This is designed for applications where it is not possible to use the larger A200.

A200: This is the standard size drip trim.


  a, mm b, mm c, mm
A170 95 65 10
A200 95 90 10

A170/A200 typical application




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