But your hard work will pay off.
How to clean pergola roof.
It sounds like you ve let it go for a while so you might have to hit it with something a bit harder.
Most manufacturers and installers seem to recommend to clean your polycarb roofing pretty regularly with warm soapy water and a soft brush.
Regular clean ups will ensure that these stains are tackled and your pergola looks elegant all through the year.
This works best if the hose is on a.
If you haven t washed your once prized pergola in months or years or even if it s just high time you deep cleaned you may be in for a chore.
Here is a link for the thompson s water seal i used.
Mildew and mold can be cleaned with a mixture of bleach and water.
How to clean an aluminium pergola.
In a bucket combine some cold or warm water with some liquid dishwashing soap the kind you use for washing.
Gently wash your pergola with soap and hot water in sections.
You want to keep the bleach concentration low to avoid staining or damaging the wood.
If it needs cleaning you can use a low pressure power washer to clean away any debris or mud.
If this doesn t work you can sand the pergola and apply a fresh layer of stain and sealant.
Rinse immediately after each section.