Why More UK Developers Are Choosing GSE In-Roof Solar Systems
The Future Homes Standard has made solar PV a core part of residential construction, not an optional upgrade. For developers, the question is no longer whether to install solar but which mounting system delivers the best combination of compliance, installation speed, buyer appeal and long term value.
That’s where the GSE In-Roof System stands apart. Instead of mounting panels above the roof covering, GSE integrates directly into the roof structure, creating a cleaner finish and a simpler build for roofing contractors.
Here’s why more developers are making the switch.
Faster Installation, Fewer Components
Time on site matters. GSE has been designed around installers and roofers, stripping out unnecessary components and simplifying the sequence on site.
Compared with traditional rail based systems, installers benefit from:
- Lightweight, injection moulded mount trays
- Fewer components to handle and fit
- No complex rail alignment
- A straightforward installation sequence
- Compatibility with standard roofing practices
Less time installing means faster roof completion and lower labour costs.
Compatible with over 95% of Solar Panels
Unlike many proprietary systems, GSE doesn’t lock developers into one module manufacturer. It’s compatible with over 95% of framed photovoltaic panels currently on the market.
That gives procurement teams the flexibility to:
- Respond quickly to supply chain issues
- Source competitive panel pricing
- Standardise installations across multiple developments
- Avoid costly redesigns
Built for UK Weather
Every roofing system has one job above all else: keeping water out. GSE’s integrated flashing and drainage channels are engineered specifically for long-term weather resistance, giving you:
Because the panels sit flush within the roof covering, wind uplift is also reduced compared with raised on-roof systems.
Less Maintenance, Long Term
Traditional on-roof arrays leave a gap beneath the panels. Over time, that gap can become home to birds, leaves, moss and debris, and many developments end up needing bird protection or remedial maintenance further down the line.
GSE’s flush mounted design removes the cavity entirely, cutting ongoing maintenance and protecting the look of the installation for years to come.
Cost-Effective, without Cutting Corners
In-roof solar was once seen as the premium option. GSE has changed that.
Because the system replaces roof tiles across the array area, developers save on roofing materials and labour. Combined with faster installation and universal panel compatibility, GSE delivers strong whole project value, not just a lower price on hardware.
Proven on Major UK Developments
GSE In-Roof has already been specified on major residential developments across the UK. One standout example is the UK’s first Zero Bills homes, where GSE formed part of the integrated renewable energy solution behind a record-breaking EPC performance.
Read the case study: How GSE Integration helped power the UK’s first ‘Zero Bills’ homes.
Planning Your Next Development?
Specifying the right in-roof system is only half the job. Delivering it on programme takes reliable stock, technical expertise and hands-on support throughout the build.
Whether you’re specifying GSE for a single development or rolling it out across multiple sites, GL gives you everything you need to keep the project moving: UK stock, seven day roof designs, plot-by-plot deliveries and free installer training at the E-home.
Get in touch with the GL team today to discuss your project request a roof design or enquire about GSE.
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