How to fix deck black marks after rain?

[narender]

Hi 

After rain, my deck gets black marks everytime.

it fades when it dry.

any help/suggestion please.

Thanks

 

[EricL]

Hello @narender 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about your deck.

Looking at the photo you posted, it appears that the former seal of your deck has started to deteriorate. It's possible that the seal on the edge of your deck has worn away and thereby allowing rain to travel deep into the wood causing it to go dark. When the water dries out the wood returns to its original shade. 

I propose sanding down your deck and applying a new coat of oil or sealer.

Here is a link to our best advice: How do you stain a weathered deck?

Here is a handy step-by-step guide: How to stain and protect decking timber by @Adam_W.

I also suggest having a look at these discussions - Poolside deck renewal by @Jeanagh and Deck and alfresco makeover by @NickiM.

If you have any other questions we can help with, please let us know.

Eric

[narender]

Thanks i will try that