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Professional roof washing vs DIY

Posted on 8/20/19 at 3:19 pm
Posted by Bonjourno
New Orleans
Member since Jan 2010
2742 posts
Posted on 8/20/19 at 3:19 pm
Have some shady areas with stuff growing between the shingles. Hire pro or DIY? Roof is too steep to get onto. So I guess I would reach with ladder and long brush.
Posted by gumbo2176
Member since May 2018
17808 posts
Posted on 8/20/19 at 4:07 pm to
quote:

Roof is too steep to get onto. So I guess I would reach with ladder and long brush.



That's going to get old really quick and you won't do as good a job as a pro who has the know-how to get up on the roof and do it right.

Probably not going to be real cheap either with a steep roof to deal with.
Posted by Bonjourno
New Orleans
Member since Jan 2010
2742 posts
Posted on 8/20/19 at 6:42 pm to
Quotes were between 1100 and 1600 for the whole roof
Posted by gumbo2176
Member since May 2018
17808 posts
Posted on 8/20/19 at 7:08 pm to
quote:

Quotes were between 1100 and 1600 for the whole roof



WOW, not only is your roof steep, but the prices you got are also in that range.

What's the pitch on your roof for that kind of price? I'd think anything above 9 on 12 would warrant that kind of pricing.
Posted by Chad504boy
4 posts
Member since Feb 2005
171575 posts
Posted on 8/20/19 at 7:14 pm to
You paying over a grand for a cosmetic roof wash?
Posted by SaDaTayMoses
Member since Oct 2005
4473 posts
Posted on 8/20/19 at 8:20 pm to
I hired a messican to get up there and get it done with my equipment. It took him all of 6 hours but it’s worth it. Gave him $200 and a hot lunch with 2 Red Bull’s.
Posted by Bow08tie
Louisiana
Member since Oct 2011
4488 posts
Posted on 8/20/19 at 9:31 pm to
I sprayed a mixture of awesome, bleach and oxy clean on our roof.
Let it sit and let the rain wash it off
Removed the mold and dark stuff off the shingles
Posted by Bonjourno
New Orleans
Member since Jan 2010
2742 posts
Posted on 8/20/19 at 9:41 pm to
quote:

What's the pitch on your roof for that kind of price? I'd think anything above 9 on 12 would warrant that kind of pricing.


I’m not sure but it has multiple tiers with different pitches. It’s also quite high in some places. The area I’m focused on is lower but has the steepest pitch.
Posted by Bonjourno
New Orleans
Member since Jan 2010
2742 posts
Posted on 8/20/19 at 9:43 pm to
quote:

You paying over a grand for a cosmetic roof wash?


Not paying anything yet, but is it just cosmetic if shite is growing? Will that not damage the roof if unchecked?
Posted by unclejhim
Folsom, La.
Member since Nov 2011
3703 posts
Posted on 8/21/19 at 5:34 am to
I had the same issue at my last house. Get some Bayer Moss and Algae Killer (Lowes about $12.00)spray it on and forget about it. Will look like new in a few days. May have to get on a ladder and make an extension for your hose (I used pvc pipe).


Don't use bleach on shingles
Posted by Chad504boy
4 posts
Member since Feb 2005
171575 posts
Posted on 8/21/19 at 6:37 am to
It’s just cosmetic
Posted by HonoraryCoonass
Member since Jan 2005
19083 posts
Posted on 8/21/19 at 9:49 am to
quote:

I had the same issue at my last house. Get some Bayer Moss and Algae Killer (Lowes about $12.00)spray it on and forget about it. Will look like new in a few days. May have to get on a ladder and make an extension for your hose (I used pvc pipe).



The guy that cleaned mine applied the solution to the roof with a pressure washer. He didn’t use the force of the pressure washer to clean.....but just to soak the roof from a distance. He never set foot on the roof, but climbed up a ladder to the gutter level, and sprayed from there. He was done in 45 minutes. After the next rain, the roof was perfectly clean. My charge (Atlanta) was only $275.

If I were you, facing an $1100 expense, I’d take a small gamble and try to clean it myself. If you don’t like your results, then call one of your estimates. Protect your plants in the drip zone.

Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
57940 posts
Posted on 8/21/19 at 1:13 pm to
the question is what solution should you spray
Posted by lilsnappa
Red Stick
Member since Mar 2006
1827 posts
Posted on 8/21/19 at 4:37 pm to
quote:

Don't use bleach on shingles


So what is the best cleaner to buy for this? I'm thinking about cleaning the roof on a house I just bought.

Everything I've read online recommends some mixture w/bleach...
Posted by unclejhim
Folsom, La.
Member since Nov 2011
3703 posts
Posted on 8/23/19 at 8:27 am to
Bayer Moss and Algae Killer. Lowes sells it. Attach to hose spray it on. That's all there is to it.
Posted by sosaysmorvant
River Parishes, LA
Member since Feb 2008
1399 posts
Posted on 8/23/19 at 8:35 am to
quote:

Not paying anything yet, but is it just cosmetic if shite is growing? Will that not damage the roof if unchecked?


Cosmetic. Will not harm shingle performance over time.....but improper washing can!
Posted by White Bear
Yonnygo
Member since Jul 2014
16262 posts
Posted on 8/23/19 at 8:42 am to
I applied Spray and Forget on my north-side roof in March - hasn't made a difference. I'm going to try another shot soon but I don't have my hopes up.

I wouldn't let some jake leg with a pressure washer pull in my driveway.
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