Material requirements for rooftop photovoltaic panel installation

Do you need planning permission to install solar panels on your roof?

An increasing number of people are investing in solar energy. More and more homes are having solar panels, or solar tiles, installed on their roofs. Of course, with such installations, the topic of planning permission and building regulations often comes to the surface.

What is a roof mounted photovoltaic system guidance?

The guidance refers only to the mechanical installation of roof mounted integrated and stand-off photovoltaic systems; it provides best practice guidance on installation requirements and does not constitute fixing instructions.

Can solar panels be installed on a roof?

"The solar panels will need to be mounted on the roof by installers who understand roofing and will need some scaffold decks to safely get the panels to the roof.

How much weight can a solar roof hold?

Installers must only fit solar panels if they’re sure your roof can hold their weight, and carry on doing so for up to 40 years. Fortunately, most roofs in the UK are built to hold much more than a solar panel system, which usually weigh around 20kg per square metre when everything’s included.

Do solar panels comply with building regulations?

Your solar panel system must comply with building regulations in terms of structural integrity, electrical safety and fire safety. These regulations may vary depending on the size and type of the installation. It's advisable to work with accredited installers who are familiar with these requirements.

Do I need a structural report for a flat roof solar installation?

It is also highly advised to obtain a structural report for even a small flat roof solar installation, to ensure the roof can withstand the weight of the racking, which will be heavier on a flat roof due to the nature of the racking required.