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Moldy roof

cdl2
Explorer
Explorer
I have a class A with a fiberglass roof.
I park it along a tree line in the summer & inside in the winter
The roof is black on about 25% of it.
I got up there today with a bucket of oxyclean mixed 3 scoops to a gallon of hot water.
I used a gental scrub brush.
It really didn't do much of anything.
I could pressure wash with a 1400 psi pressure washer.
I could use chlorine bleach, which could kill the grass.
Any other ideas?
Thanks
25 REPLIES 25

cdl2
Explorer
Explorer
Someone said I should use a sealer on the roof after I get it clean
What stuff is goof for that?
I've used Armoral in the past, with UV protection.

Bumpyroad
Explorer
Explorer
cdl2 wrote:

Where is the mold going?
.


to mold heaven, if it has been good.
bumpy

cdl2
Explorer
Explorer
I'm just about done.
Where is the mold going?
When I spray my 50% bleach on it turns kinda brown & then it turns white.
Nice & clean!!!!!
Don't wear a nice shirt
Don't do it when there's too much wind.

Bumpyroad
Explorer
Explorer
cdl2 wrote:
I tried the 50% bleach & water..........that really put the hurt on the mold.
I'm looking at a rain delay today & cold tomorrow.
Thank you all.


yep, it knocks the snot out of mold, and is cheap.
bumpy

cdl2
Explorer
Explorer
I tried the 50% bleach & water..........that really put the hurt on the mold.
I'm looking at a rain delay today & cold tomorrow.
Thank you all.

Tom_Barb
Explorer
Explorer
cdl2 wrote:
This is the first year it's ever been this bad.
I wash it every year, I had no idea it was this bad.
I've used Tile X in the past, but this year it's so bad it will take gallons to get it clean.
I had to wash the vinyl siding too, that was a first, it's been there 15+ years.
Must have been a bumper crop for mold this year


the reason it is back, is because Tile-X didn't kill it.
2000 Newmar mountain aire 4081 DP, ISC/350 Allison 6 speed, Wrangler JL toad.

Bruce_Brown
Moderator
Moderator
Either a bad mold year or your fiberglass is starting to deteriorate and it's not shedding stuff as it used to. You may want to consider some type of sealer when you finally get it clean.
There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910

cdl2
Explorer
Explorer
This is the first year it's ever been this bad.
I wash it every year, I had no idea it was this bad.
I've used Tile X in the past, but this year it's so bad it will take gallons to get it clean.
I had to wash the vinyl siding too, that was a first, it's been there 15+ years.
Must have been a bumper crop for mold this year

Tom_Barb
Explorer
Explorer
Bumpyroad wrote:
Tom/Barb wrote:


Try thisZEP Cleaner it is very strong, it will leave streaks on the sides of the coach, so mask it off.

$40 for a gallon of sodium hydroxide solution.?????????


That will make hundreds of gallons of cleaner -- it does come in smaller qualities.

My question is, why was the roof allowed to get this bad?
2000 Newmar mountain aire 4081 DP, ISC/350 Allison 6 speed, Wrangler JL toad.

ksg5000
Explorer
Explorer
I use Tile X on my awning - seems to work - should work on the roof. Just spray enough to wet the moss/mold and be patient. You can do the same with spray bottle and a bleach/water combo.
Kevin

Bumpyroad
Explorer
Explorer
Tom/Barb wrote:


Try thisZEP Cleaner it is very strong, it will leave streaks on the sides of the coach, so mask it off.

$40 for a gallon of sodium hydroxide solution.??????????
vs $1.25 for a gallon of bleach.
bumpy

Tom_Barb
Explorer
Explorer
cdl2 wrote:
I have a class A with a fiberglass roof.
I park it along a tree line in the summer & inside in the winter
The roof is black on about 25% of it.
I got up there today with a bucket of oxyclean mixed 3 scoops to a gallon of hot water.
I used a gental scrub brush.
It really didn't do much of anything.
I could pressure wash with a 1400 psi pressure washer.
I could use chlorine bleach, which could kill the grass.
Any other ideas?
Thanks


Try thisZEP Cleaner it is very strong, it will leave streaks on the sides of the coach, so mask it off.
2000 Newmar mountain aire 4081 DP, ISC/350 Allison 6 speed, Wrangler JL toad.

donkeydew
Explorer
Explorer
30 second cleaner, spray it on let it set for a minute and hose it off.

doxiemom11
Explorer II
Explorer II
Awesome cleaner from the dollar store does a great job. We park under trees all summer also and have to clean it 2X per year. Mean Grean also has a specific mildew cleaner that can be found in some dollar stores. That works too.