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PVC Cladding UK£75.92Visit shop Cromar Grp Roofing Through Wall Parapet Outlet Trim
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The ProGRP Through Wall Parapet Outlet Trim is a specialized component engineered for professional roofers and installers using the ProGRP roofing system. It provides a reliable drainage solution for horizontal applications featuring free waterfalls, such as terraces, balconies, and box gutters, ensuring an efficient and seamless transition for water flow. While it offers excellent durability and professional-grade performance, it must be installed as part of the wider ProGRP ecosystem to maintain the integrity of the watertight system.
| Series | ProGRP |
|---|---|
| Model Part Number | GA/7115 |
| Brand | Cromar |
No, this component is specifically designed for the ProGRP liquid-applied resin system and is not compatible with standard bituminous felt roofs.
It is designed to facilitate drainage for free-waterfall applications, effectively directing water away from horizontal surfaces into gutters or downpipes.
It is intended to be fixed using the standard ProGRP resin and matting system, which creates a chemical bond rather than relying solely on mechanical fasteners.
Regularly clear the outlet of debris such as leaves or silt to ensure water flows freely and to prevent ponding.
The ProGRP system is typically finished with a dedicated topcoat. If you need to color-match, ensure you use products compatible with GRP.
Check the roof deck for correct cross-falls and ensure the trim is installed at the lowest point of the run.
Verify that the GRP laminate layer has been applied correctly over the trim flange and that the bond has not been compromised by contaminants.
For optimal results, ensure the substrate is level and clear of debris before beginning the installation. The Through Wall Parapet Outlet Trim must be installed in conjunction with compatible ProGRP resins and glass fiber matting to form a cohesive unit. After installation, the trim requires minimal maintenance beyond periodic inspections to clear any obstructions from the outlet path, such as leaves or grit, which could impede water flow. Always check the alignment during the initial fixing phase to ensure a consistent slope toward the outlet point for maximum drainage efficiency.
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