Cromar Pro GRP Trims, Corners & Outlets, for use with the Cromar Pro GRP Roofing System.

See below for full ordering references, dimensions, and installation information.

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• Ordering References
• Trim Dimensions
• Installation Guide

Ordering References

Trim Dimensions

A range of drip trims in varying sizes, fitted to the roof edge to allow rainwater drainage to flow into the gutter.

A range of raised edge trims in differing sizes, fitted to the roof edge to prevent water run off.

C - to be used in conjunction with D260 wall fillet.

D - for use against a butting wall or parapet.

E - for creating rolls on ridge details or expansion joints on large roofs.

F - used under slates at a roof junction or as a gutter lining.

Hot press moulded, versatile and long lasting corners, part of the PRO GRP system.

Pre-formed closure trims for application to the end of the roof ridge section when using the PRO GRP system - available in small or large sizes.

Pre-formed drainage outlets.

Installation Guide

The following instructions are for fixing Cromar Edge Trims; download the full guide here for further and in-depth details on preparation of surfaces and application of different trim types, GRP systems and topcoats.

Trims are fixed in place using 20mm ring shank nails. First, battens (19mm x 38m treated) should be fixed around the roof perimeter in a position suitable for each trim profile and prior to fixing the trim in place, short beads of Cromar P U trim adhesive approximately 30mm at 300mm centres should be applied to the battens.

The trim can now be positioned and bedded into place to ensure the face is vertical and that the adhesive makes good contact. Mechanically fixing using ring shank nails can now take place.

When using the drip edge trims (A200 and A250) it may be necessary to double batten’ to ensure the bottom edge of the trim is located as close to the centre of the gutter as possible.

Where trims are overlapped onto one another, the join needs to be sealed using a continuous bead of trim adhesive.

In addition, all trim joins should be bandaged. Where trims meet at corners, whether it be the same profile or two differing profiles, the join can be made by cutting/mitre and moulding a corner, using chop strand mat and catalysed basecoat.

If you are using pre-made corners, always remember that any trim-to-trim join needs the overlap sealing with trim adhesive and then bandaging.