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What to do if the photovoltaic panel extends out of the outer edge

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What to do if the photovoltaic panel extends out of the outer edge [PDF]

6 FAQs about [What to do if the photovoltaic panel extends out of the outer edge]

Do solar panels need a roof edge?

Even when manufacturer guidelines don’t require it, installers still need to leave enough space at the bottom edge of a roof so water flowing down solar panels doesn’t overshoot the gutter. It is also good practice to leave at least 20cm between panels and roof edges.

Are solar panels allowed on a roof?

Depending on the roof mounting system used to attach the panels, there may be ‘exclusion zones’ where no solar panels are allowed. These zones exist because winds are strongest around the edges of roofs. Installing away from the roof edge reduces wind loading on the panels and makes them less likely to be damaged or even torn off in a storm.

Can solar panels be installed in the edge zone?

Solar panels can still be installed in what they call the edge zone, provided the rails that panels are clamped to have around twice as many attachment points to the roof as the rails in the internal zone. So provided rails are fastened as the installation manual recommends, panels can be installed up to the edges of roofs.

Should solar panels be placed in exclusion zones?

If solar panels have already been installed on your roof then it gets a bit more complex. If your installer violated manufacturer’s instructions by placing panels in exclusion zones than you can request they remedy the situation.

Do solar panels on a south-facing roof affect performance?

A good surveyor can talk you through how the panels’ position on your roof will affect their performance. Solar systems that face southwest and southeast are only about 15% less efficient than ones on a south-facing roof. Systems on east and west-facing roofs still work, but they’re less effective.

How far away should roof panels be from the edge?

Many websites seem to refer to a general rule of panels being at least a metre from the edge, which for my roof will massively reduce the area I can use. Does anyone else have any experience with this? Location: SE England / Highland depending which. On 26/05/2023 at 08:38, Smallholder said: at least a metre from the edge, which

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