In-Roof Integrated PV system for

traditional Photovoltaic Panels from

Simple, Quick, Aesthetic, Lightweight, Waterproof & Cost-Competitive

GSE In-Roof System

Throughout Europe is complemented by responsible, innovative and accessible photovoltaic solutions

GSE IN-ROOF is a mounting system, allowing the building integrated installation of standard solar panels on new builds or roof-renewal properties. The system has the advantage that it fits with most of solar PV panels available on the market.


With more than 4.000.000 m² installed in the world GSE Integration kit is, to date, the most cost efficient in-roof PV system on the market.


The GSE BIPV system and its new design, now sizes and covers the productive roofs of the new constructions and confirms its leadership position in the UK, the Netherlands and France. Now we are came to Poland, Czechia, and Slovakia.

This new expansion of our MCS 012 certification is the latest step in the ongoing certification of the leading BIPV product in Europe. The certification is now being expanded to cover two new PV modules and to achieve a maximum design wind uplift resistance of 2,71 kPa.


This perfectly complements the numerous tests carried out in France, where in its country of origin, the system has been certified by the highest French building recognition, CSTB’s Technical Appraisal (ATec) since 2016.

GSE IN-ROOF SYSTEM gives you the possibility to choose modules benefiting new technologies that suit the best your projects and integrate them in the roof in portrait or landscape.

Developed by installers for installers, the mounting system offers sizeable advantages


Easy to install: 3 to 6 kW system installed in 1 day

Lightweight (2 to 3 kg/m²) and easy to transport

Completely waterproof: ensures complete water tightness of the PV system and the roof

Flexible: achieve any desired configuration type (U-Shape, pyramid, etc)

Specific flashings developed for the technical needs of the different markets

Mechanical shock resistant (injected polypropylene is the material used in the aeronautics and automotive industries)

Very important mechanical resistance: Pressure: 5400 Pa (IEC 61215) Depression: up to 2710 Pa (MCS012)

The most optimized ventilation of the BIPV to meet the maximum production needs of the PV plant.


15 available references*

Module width: 798 to 1060 mm

Module length: 1535 to 1750 mm


18 available references*

Module width: 768 to 1122 mm

Module length: 1550 to 1740 mm

* Detailed list available here.

Eurocode design values: Snow: 1800 Pa Wind: 1700 Pa MCS maximum design wind uplift resistance: 1.9 kPa

Technical Specifications

All types

Roof covering


12° to 50°

Portrait & Landscape

Alu / Black


2 to 3 kg/m²

Temperature range

-30°C to 100°C


PP – Aluminum – Stainless steel (100% Recyclable)

Compatibility with the new module technologies:

Half Cells
Shingled Cells
New Size of Wafer
Splitted Junction Box
Support Bars
Frame Thickness From 30 to 50 mm
AC Module

Available Flashings

Kit universal (see installation manual)

■ Kit v.A-1: For traditional slates

Kit v.TS-1: For curved tiles

■ Kit v.TN-1 (2020): For flat interlocking tiles

■ Kit v.TP-1 (2020): For traditional flat tiles

Compatibility with roof windows

Tests & Certifications


Liability insurance trading and product Liability insurance – CHUBB / 10 years product guarantee insurance: EPERS

Avis Technique

CCFAT-CSTB: ATEC N°21/16-57 V3 – «In Roof System» V. TS-1: curved tiles, «In Roof System» V. A-1: slates




ALPES CONTROLES: ETN 010T170F Many modules approved (list available here)

BBA: MCS 012 certificate no. “MCS BBA 0156” – compatible with more than 30 PV panels – maximum wind load: 1.9 kN/m²


DIBt: Allgemeine bauaufsichtlichen Zulassung no. Z-14.4-817

For more information and details about our certificates, please read our information on Certifications & Insurance Cover.

Would you like to know the cost of the GSE IN-ROOF SYSTEM for your project?

Use the calculator to calculate the suitable variant for your project, the cost of integration of the system, with all the accessories and components.

At the moment the calculator works in three language versions – French, German, and English, but we are working on a new version of the calculator, which will include other languages as well.

Use the calculator’s manual for a faster and more comfortable calculation of your project.

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VELUX Solar Integrator ODL, a fruit of the long-term partnership with VELUX is the solution enables a seamless installation of VELUX roof windows with a GSE IN-ROOF system.

The low-profile flashing perfectly connects to GSE IN-ROOF system allowing for optimal roof utilisation and ensures full utilisation of the solar panels and maximum generation of energy.
By integrating VELUX roof windows with GSE IN-ROOF solar system, you not only make your home more sustainable by powering it with solar energy but also create a more comfortable and healthier indoor climate, full of daylight and fresh air.


Integrate a FAKRO skylight into the system of your choice. FAKRO has developed a bracket that provides a seamless join with the GSE IN-ROOF PV mounting system. You can decide where you want your FAKRO skylights to fit into the PV combination. The FAKRO PV solution can be installed on both new builds and renovation projects. The system’s measurements have been adapted to typical PV panel sizes, so it will fi t into the whole roof system seamlessly. We can also provide bespoke solutions if you have special requirements.


Roto roof window integration with the GSE assembly system is the ideal sustainable combination allowing lower energy bills and a healthy indoor climate. The safe and simple connection to Roto GSE flashings guarantee a 100% water-tight system. Roto offers flashings and pieces of connections for roof windows in all RAL colors, so you can customise your own roof! Free choice of roof window type and control mechanism.


GSE IN-ROOF SYSTEM has established itself on the French BIPV market for 10 years and then worldwide for all these reasons. Test it in the aesthetic renovation projects or to respond in the most economical way to the new constructions.


To try it, is to adopt it!

GSE IN-ROOF SYSTEM in various projects

United Kingdom

Project port of London Authority

The Port of London Authority has a responsibility to lead the way in sustainability. With this in mind, when they were presented with the opportunity to fit solar panels during the refurbishment of their headquarters in Gravesend, they decided to make clean energy generation part of the very fabric of their building.


While most solar PV installations sit ‘on-top’ of the roof, an innovative mounting system allows the panels to become the roof.

This 78.08kW integrated system will produce over 74,428kW/h’s of clean electricity harnessed from our sun.


As a result, not only will PLA reduce their grid consumption by c.21% per annum, they will also reduce their carbon footprint by over 16,260kg’s per annum.


Developed, Designed and Delivered by BeBa Energy. In this project the developer equipped solar panels integrated into the roof by the GSE IN-ROOF SYSTEM by GSE INTÉGRATION.

The Netherlands

Project Gildenhof in Dronten

The project was developed by IJsselland Ontwikkeling B.V. and realised by construction company De Bruin-Putten B.V. 29 homes were built, where atmosphere and sustainability are perfectly combined.


The houses generate as much (or more) energy as is needed for the house and the household. In the Gildenhof this is achieved by providing the homes with good insulation and smart installations with their own energy generation.


All homes are equipped by Dutch Solar Systems B.V. with no less than 23 solar panels, which are integrated into the roof by the GSE IN-ROOF SYSTEM from GSE INTÉGRATION.


Due to the smart orientation of the houses, all houses have a south-facing garden and the solar panels on the roofs can optimally capture the sun. 

The Netherlands

Project Dorpshaven in Aalsmeer

In total, Dorpshaven consists of 118 homes. The entire plan exudes the typical Scandinavian atmosphere that does justice to the beautiful residential location on waterways.


The housing offer is diverse: row and deck houses, semi-detached houses and water houses. Many of the houses have a garden or terrace on water, which is connected to the Ringvaart and the Westeinderplas. For a number of housing types, buyers had a choice of three unique Scandinavian colours.


The Dorpshaven development team consists of AGNova architects and Synchroon. In collaboration with the municipality of Aalsmeer. In this project the developer also equipped solar panels integrated into the roof by the GSE IN-ROOF SYSTEM from GSE INTÉGRATION.

We also offer
Aerial Solar Panel Inspection and Lifecycle Management

Improve the financial performance of your solar assets with efficient inspections, actionable insights, and ROI-positive results.

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