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Sunbrite supply sells Items for that, also you can use a weekend roof washing mix to clean the composite decking with, I do it all the time. Envirospec sells a house wash that can be mixed with the SH called emulsifier, it works good for house washing and for composite deck cleaning.

Never pressure wash a composite deck it will mess it up, just set and rinse, may take a few times, also go to pressure washing institue, they are more for pressure washing since this is a roof cleaning base forum, but if needed just email me or private message.

Superjack wrote:

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Thanks, I will PM you. The reason I brought it up here is because I over sprayed and spotted the trex deck.  i should of said that to begin with.  I didnt know if the SH would be bad to use on the rest of the deck to clean it or if there was a better mix to use specially for that?

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You can use the Roof mix or water it down a bit and spray the trex decking. Let it dwell for about 10-15 min or so and follow up with a lite rinse. It will clean up nicely. Just stay away from using any real high pressure on it. I Clean them this way all the time and they turn ot great.

 

I love Envirospec, and have used emulsifier+, it's a great product.

For those decks and furniture, keeping them soaked while you work and having a ground person rinse them as chem makes contact will help you avoid this situation.

You can tarp them, but if chem gets trapped under the tarp it will cause clean spots you won't notice till it is too late.

Remember the roof solution will make clean spots on wood and concrete almost instantly if it hits them when they are dry.

I am reading alot on people over spraying..........you really got to extend your rinse areas.....set up sprinklers if you have to...over spray really should'nt happen.....

I explain to the H/O that his deck is dirty and I offer to clean it for him and if he declines I tell him I will do my best to not spot it, but no promises.

I mean give me a break the deck needs cleaned, tell them to clean it.

I usually wet down the decks and then tarp them. Rinse again when done. Sometimes I just offer a great deal on the roof, house and deck so I don't have so much to worry about. It makes the whole job look great and you get paid a little more for what you may already be doing. Hope this helps!

Baltimore MD Roof Cleaning 410-482-4367 wrote:

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I love Envirospec, and have used emulsifier+, it's a great product.

For those decks and furniture, keeping them soaked while you work and having a ground person rinse them as chem makes contact will help you avoid this situation.

You can tarp them, but if chem gets trapped under the tarp it will cause clean spots you won't notice till it is too late.

Remember the roof solution will make clean spots on wood and concrete almost instantly if it hits them when they are dry.

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+1 Bill. We did a house wash and the back screened in patio had siding we washed right next to wood. We rinsed the wood first and used a brush to get the soap on the siding, j channels and all. Came out perfect. No clean spots on the wood trim.

 When we wash next to a deck. Just pre rinse the deck. And keep rinsing it. Same with roof over spray.

Washing roofs, We change the nozzle setting to mist. And get close to the edge when walkable, and use the same setting near skylights. Your angle and setting of spray is important because that is where and how far your over spray will go.

 ALWAYS be aware of where your over spray is going and pre rinse if necessary.

 

I did a roof and house wash this summer and I set my soap bucket on the deck. Somehow a little spilles and made a ring. I didnt say anything about it but just started talking to they guy about all the mold on his deck. Long story short I upsold a small trex deck for $20 so thats always a option also