Homesteading Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
468 Posts
Discussion Starter #1
I've got composite shingles on my home that are about 9 years old. They are grey (at least most of them are). I have black spots and streaks on the shingles. Is cleaning them impossible? I'm guessing it is mold. Any ideas?
 

·
Registered
Joined
·
198 Posts
The ones I've seen around here I think in most cases it is lack of ventilation in the attic. It seems where there is a small vent will stay looking good thats why I put continous ridge vent when we built.
 

·
Registered
Joined
·
575 Posts
Could be pecan or cedar tree 'crud'?? BUT.. you could try using a power washer.. rent one! :) OR.. with all the hail storms we have around here.. IF you have insurance..... call em up to do a claim... you might just get a new roof out of the deal.. I DID!! (Darn, I'm glad I remembered I had that policy!!) I was trying to figure out how I was gonna pay for a roof!! It didn't leak.. looked fine.... I just called them out for one little area on my shop/garage building near the flashing!!

Can't hurt to give 'em a call!
 

·
Premium Member
Joined
·
18,076 Posts
I'd say that you have mold/mildew. It is especially noticeable on white to grey roofs. What seems to work is a product called Z-Stop (<--Click link). It is a zinc metal strip that you attach to your roof near the peak. Rainwater washes the zinc down the roof each time it rains. The zinc will kill/prevent the mold and mildew for many years.
 
U

·
Guest
Joined
·
0 Posts
I believe there is something called oxygenated bleach that will take care of that.i am a house painter and we have been considering offering that surface when we pressure wash a house.I believe you can get it at the hardware store.
 
1 - 5 of 5 Posts
Top