[Alan McTernan]

Hi Guys,

Has anyone come across yellow staining on polycarbonate roofs as have seen a few recently and would like to try and remove it

It seems to be only on sections of the roof and appears to be where the water runs down from the top cresting/cover!!!

Cheers
Alan

[dmlservices]

hi
dont think you can remove it , i have done a few recently where 1 complete panel has turned yellow , all the rest are clear, think it's something to do with uv

daz

[richyp]

just baffle them with  science m8, i havent come across it to be honest! there isnt alot of pressure you can get on a con roof unless you have a ladder and i wouldnt personally use one anyway,as you can cause broken seals etc. spray raffic film, and if that doesnt work use a cream cleaner with a used green pad and if that doesnt work just explain to customer that it is impossible to remove. u can use cream cleaner via a waterfed pole with a strap and it works a treat. i have never had a complaint, and this kind of work is on the increase/..

richy

[actualcleaning]

Hi Guys,

Has anyone come across yellow staining on polycarbonate roofs as have seen a few recently and would like to try and remove it

It seems to be only on sections of the roof and appears to be where the water runs down from the top cresting/cover!!!

Cheers
Alan

Alan...it is exposure to uv rays that causes it.Why it happens on some sheets and not others is still a mystery to me,but not a lot can be done about it.

[Mr Bungalow]

Hello Alan,

I'm have to agree with everyone else.  It is definetly down to uv rays bleaching the polycarbonate panels.

I would just tell the customer that you do get the odd faulty panels.

I do plenty of conservatory roof cleans, with no problems.

Hope this has helped.

Kind regards.

[richard jagger]

When I see this it spells money replace it.Its good money and easy to do.