GSE IN ROOF Semi Rigid Bottom Flashing - 1800mm - Black

The GSE Semi Rigid Bottom Flashing is an 1800mm flashing component designed to seal the lower edge of a GSE in-roof PV array where the mounting system meets the roof tiles or gutter line below. Its semi-rigid construction provides a stable, secure fit along the bottom perimeter of the array while retaining enough flexibility to conform to the roof profile, creating a reliable weather barrier at this critical drainage point.

Key Technical Details

• Product: GSE Semi Rigid Bottom Flashing
• Part Code: GSE-ART106044
• Manufacturer Reference: ART106044
• Length: 1800mm
• Weight: 0.57 kg
• Colour: Black
• Construction: Semi-rigid
• Overlap between semi-rigid flashing pieces: 170mm
• Overlap underneath lateral flashing: 200mm
• Mounting category: In-roof integration

Key Features

• Semi-rigid construction balances structural stability with sufficient flexibility to follow the roof surface profile along the bottom edge of the array
• 1800mm length provides coverage across the lower perimeter, with multiple pieces overlapping at 170mm intervals where wider arrays require additional flashing sections
• 200mm overlap underneath the lateral flashing ensures a continuous, layered seal at the junction between the bottom and side perimeters of the array
• Black finish matches all other GSE in-roof system components for a consistent, integrated appearance
• Lightweight at 0.57 kg per piece, keeping handling straightforward during roof-level installation

Installation Notes

• Install along the bottom edge of the GSE in-roof array where the mounting framework transitions to the roof tiles or gutter connection below
• Where multiple bottom flashing pieces are required, maintain a minimum 170mm overlap between adjacent sections to ensure a continuous weathertight seal
• The bottom flashing must extend 200mm underneath the lateral flashing at each side of the array to create a properly layered junction between the bottom and side perimeter seals
• Ensure correct overlap orientation so that water is directed away from the array and down the roof slope without being channelled beneath any flashing joints
• Must be used exclusively with GSE in-roof system components to maintain full system compatibility and manufacturer warranty conditions
• Refer to the GSE in-roof installation documentation for the correct positioning sequence relative to the lateral flashings, frames, and any flexible sealing strips used at the array base

About GSE

GSE Integration is an in-roof photovoltaic integration specialist operating within the SVH Energie group, with over a decade of experience developing mounting systems and weatherproofing components for integrated solar installations. Their IN ROOF system has captured over 60% of the residential in-roof PV market in France and now offers UK-based professional installers a comprehensive and field-proven integration platform covering frames, clamps, and a full range of perimeter flashing solutions.

About DECO Group

We are a UK-based solar wholesaler and distributor supplying GSE in-roof bottom flashings and the complete range of perimeter sealing components to professional installers. Whether specifying semi-rigid bottom flashings, flexible sealing strips, or lateral and top flashing assemblies, our trade supply ensures every element of a fully weathertight GSE in-roof installation is available from a single source.