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Quote: Originally posted by tango55 on 14/8/2017

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If it's the square 40 x 40 skylight you are referring to then I climb on the caravan roof and undo the 4 fixing screws, remove the outer and inner sections then wash them in a large tub of warm water and washing powder. Work it in with a soft paintbrush and the dirt instantly washes away then just rinse with clear water and dry before re-installing. They come that clean that they look like brand new.

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Quote: Originally posted by Mike3003 on 15/8/2017

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Just a thought, but is it not a good idea to use a brush. I am thinking scratches. 👍😀

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Quote: Originally posted by Mick S. on 15/8/2017

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Quote: Originally posted by tango55 on 14/8/2017

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If it's the square 40 x 40 skylight you are referring to then I climb on the caravan roof and undo the 4 fixing screws, remove the outer and inner sections then wash them in a large tub of warm water and washing powder. Work it in with a soft paintbrush and the dirt instantly washes away then just rinse with clear water and dry before re-installing. They come that clean that they look like brand new.

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Climbing on the roof and taking it to bits seems a recipe for disaster to me. Especially for just a cleaning job. And particularly when you think theres only a decent rain shower between being 'spotless' and mucky again.

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Quote: Originally posted by tango55 on 15/8/2017

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Quote: Originally posted by Mick S. on 15/8/2017

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Quote: Originally posted by tango55 on 14/8/2017

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If it's the square 40 x 40 skylight you are referring to then I climb on the caravan roof and undo the 4 fixing screws, remove the outer and inner sections then wash them in a large tub of warm water and washing powder. Work it in with a soft paintbrush and the dirt instantly washes away then just rinse with clear water and dry before re-installing. They come that clean that they look like brand new.

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Climbing on the roof and taking it to bits seems a recipe for disaster to me. Especially for just a cleaning job. And particularly when you think theres only a decent rain shower between being 'spotless' and mucky again.

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I'm not talking about cleaning on a regular basis, I'm referring to dirty filth that builds up over the years that's not only an eyesore to the human eye but also blocks out the natural daylight. When we collected our (new to us) 12 year old caravan last year from the dealer, the outside and interior were perfectly clean but you could tell that the skylights had never been cleaned since new and were absolutely filthy. Of course the dealer won't go to that extreme so it's up to the new owners to clean them (if they want). Once the 3 skylights were cleaned it made a huge difference and won't ever want cleaning for about another 10 years so my post to the OP was directed mainly of removing built up grime rather than general cosmetic cleaning.

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Quote: Originally posted by shaggy2000 on 15/8/2017

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I've got those Heki roof lights and they are more hassle than enough.

They are made in two piece and have an air gap in between the two piece of hard plastic, can I heck as like get them apart to clean in between. All I see is a build up of thick dust and muck.

I've managed to take them down by unscrewing them from inside the van, but then quickly realise you need some sort of special screwdriver (really thin one with a torx head) to get them apart.

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