If the roof is polycarbonate use warm soapy water with a soft foam type mop.
Can you pressure wash a conservatory roof.
The trouble is these types of tiles are really common.
Once you re satisfied with all of your work then you can rinse off the roof with a pressure washer and some clean water.
Take care if using a pressure washer on your conservatory.
Use soft bristled brushes and microfibre cloths when cleaning the conservatory roof to avoid scratching the glass or frames.
If you re giving the conservatory a fairly rigorous wash from the outside you might want to use a pressure washer or garden hose to rinse the roof properly.
Many people think that is okay to pressure wash a conservatory roof but it actually isn t.
If you ve missed any spots now is the time to go over them with a small sponge and water.
That s because these tiles are made of granular concrete and the pressure will actually degrade and wear them away significantly.
The pressure washer while it will get the roof clean will also damage the seals of the glass or plastic roof panels.
If it s glass you can use a pressure washer but watch out for the ridge which may be vented.
The strong jet of water can break the seals of the glass and cause leaks.
This results in the roof springing leaks.
There are actually a number of common roof tiles they it s recommended you never wash with a pressure washer.
Answered 16th mar 2011.