I had a roof cleaning job canceled!

[Larry Millette]

How do you tell if they need a new roof or not? I run into people all the time to have dirty roofs and I ask them about cleaning it and they say oh it just needs to be replaced. I don't know what to say to that because I don't know how to tell the difference between a roof that needs to be replaced and one that just needs to be cleaned. Not sure what to look for.

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Normally if you see a significant amount of granual loss, curling of the shingles, dips in the roof which is a good sign of underlay issues etc... it pretty much means that the roof would be better if replaced. BTW...The one I mentioned this morning ended up getting cleaned. She had none of the above except a small amount of granual loss where a tree branch had been rubbing on it.

 

[Garyward]

I am a state licensed Roofer. Roofers tend to have a bad reputation in my area. If a roof does not need replacing, I always let the customer know. To be honest, I make more on repairs than replacement anyway. I'd much rather offer a soft wash and repair (if there area any leaks). If the roof does need replaced, I always let them know, I'll offer you a repair, but your roof is in such poor condition, I will not be warrantying my work because it goes against my recommendation. I'll then have them sign an affidavit stating I recommended something which they went against.

I'd much rather clean a roof then remove and replace it.. MUCH less work!

 

[danwagner]

The document from Certainteed said that a stronger concentration could damage the siding and soffit. Is this accurate?
1/2 cup detergent (Tide, for example)
2/3 cup trisodium phosphate (Soilax, for example)
1 quart 5% sodium hypochlorite (Chlorox, for
example)
3 quarts water

 

[Johnson]

The document from Certainteed said that a stronger concentration could damage the siding and soffit. Is this accurate?
1/2 cup detergent (Tide, for example)
2/3 cup trisodium phosphate (Soilax, for example)
1 quart 5% sodium hypochlorite (Chlorox, for
example)
3 quarts water

The trisodium phosphate (TSP) is what you need to be careful of around siding, windows etc. A roof can be cleaned without it though.

 

[Kiloman]

Josh that roof system is fine looks like you have everything you need,your not gonna get them all keep digging and it will fall into place for you.

 

[outdoorprowash]

We need something similar for vinyl. Isn't there a vinyl manufacturer recommending bleach? Thought I heard that somewhere.

There is one for cleaning dryvit. As for vinyl siding cleaning IDK. We have roofers out here all the time gathering roof cleaning leads to sell them a roof. More roofers are getting in the business.