Are you sure that's mold? We've seen similar black spots during the construction phase when someone was cutting or grinding metal and the shavings were scattered all over the deck from a grinder. Metal shavings from cutting railings, balusters and etc... will leave little black spots all over hardwood decking. If this is the case you can easily fix this once construction is complete by using DeckWise Cleaner and power washing is usually enough to remove. Then let dry for a few days to make sure they don't reappear and apply Ipe Oil.

Correct , thats exactly what it is , your the first to understand it . it actually came from the camo drill bit , took me a while to realize it , once we cleaned the spot after we drilled each time and used a non camo bit the problem went away. i I will clean it this weekend with deckwise and see how it goes Thanks for posting hopefully others can learn from this.

Wow it's hard to believe their bit was leaving that many shavings. We are not fans of their fastening system and this adds another reason. Thanks for sharing what was causing the metal shavings!

I know its hard to believe but once we changed the drill that had a hadened stop and keeped blowing it off the problem went away . To be honeast the Camo fastening is fine we didnt have an issue with any of that , you just have to make sure you blow the deck off as you are drilling. The xtra cost of having a groove cut in the board and using the IPE Clip was the reason we chose the Camo fastening .

Glad you figured it out and it worked for you. If the DeckWise cleaner does not work as that would be the least labor then you will need to sand the deck preferably the entire deck so it's all consistent. We recommend 80 - 100 grit typically. All of our hardwood decking comes from our factories sanded with 80 grit. Not sure if you purchased the decking from us or somewhere else but if you don't match the the grit and spot sand you would probably be able to tell after you are done it might look blotchy. Sanding the entire deck and then cleaning it thoroughly then applying the oil would give you the best results assuming you are in an area that still has temperatures good enough for applying the Ipe Oil.

OK No Problem thank you for your advise , unfortunatly I didnt purchase from you guys only because you didnt have the Garapa in stock otherwise we would of for sure . We have more projects coming up so we will look at trying to purchase from you as your prices where cheaper. Thanks again for you advise , I will let you know how it ends up