2007-01-01 11:34:15 · 5 answers · asked by st2ma 1 in Home & Garden ➔ Maintenance & Repairs
use a garden pump sprayer to put the bleach on. {1 part bleach and 10 part water that is all needed on a sunny day}
2007-01-01 12:15:31 · answer #1 · answered by moco 2 · 0⤊ 0⤋
Down here in South Florida that is a common problem, due to our high humidity. The accepted way of dealing with it on an asphalt shingle roof, is to pressure spray to remove the build up and follow up with an application of diluted chlorine bleach to kill any remaining mold spoors. This is usually a good once a year treatment on the worsts roofs. Now if you have a wood shingle roof, I really don't know how well this would work for you.
2007-01-01 11:57:01 · answer #2 · answered by Galileon 2 · 0⤊ 0⤋
You will have to scrape as much off as you can, then take bleach and soapy water and a large brush and scrub it off and then if you are going to keep the shingles, if they aren't ruined you will want to spray with an antifungal or antimold spray retardant to keep it from growing back. Ask at the Home Improvement store in your area. If you have trees or anything causing shade and moisture to hang on the roof see that they are trimmed back to allow sun and air to help with the situation. You will probably have to replace them soon and not over the top but remove and put new ones on. Otherwise it's a waste of money. It'll cost more in labor to remove but you haven't got a choice. Save and plan on a loan or whatever within the time that you have left.
2007-01-01 11:40:57 · answer #3 · answered by MISS-MARY 6 · 0⤊ 0⤋
Use caution with any of the removal methods suggested--a wet roof is EXTREMELY slippery. Make sure you have all of the proper safety equipment (harness, etc) if you are going to be on your roof! No shingles are worth a nasty fall...
That said--you can do these things, but it's coming back. Look for the source of the mold. Do you have overhanging trees? Some trimming may cure the problem for good.
2007-01-01 11:59:22 · answer #4 · answered by madhousewife 3 · 0⤊ 0⤋
There are commercial fungicides available for just this purpose. Check with a building supply company, or do an internet search; many different brands are available. There are also sealers with fungicide to prevent this problem from re-occuring.
2007-01-01 12:52:53 · answer #5 · answered by hoov 2 · 0⤊ 0⤋
Clorox and water...good luck ! (pressure washer)
2007-01-01 11:43:24 · answer #6 · answered by Scorpius59 7 · 0⤊ 0⤋