Roofing, Gutters and Waterproofing - metal roof troubles

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louisianalou
10-03-09, 01:56 PM
my husband put a galvanized roof over the roof of our mobile home. now we have mildew around both exhaust vents in our home. what can we do to fix it. and what is happening.

chfite
10-03-09, 02:11 PM
There is every chance that the moisture from the vents is condensing on the metal roof and maintaining dampness for long enough for the mildew to grow. Cleaning the mildew off the roof with something akin to Spic 'n Span should clear it up until it recurs.
marksr
10-03-09, 06:21 PM
A bleach/water solution will also remove the mildew but it must be rinsed well!!! otherwise the bleach will promote rust on the metal roofing :eek:

How was the roof installed? Is there an attic space between the MH roof and the new roof? if so how much? or did he tie the vents into the new roof?

btw - welcome to the forums!

louisianalou
10-03-09, 07:36 PM
he put 1-4s and put the metal on top of our old roof. about 1inch space.BUY THE WAY THE MILDEW IS AROUND THE VENTS ON THE INSIDE OF MY HOUSE. NOT OUTSIDE ON THE ROOF.
marksr
10-04-09, 05:50 AM
So did he extend the vents thru the new roof? If not, the vents aren't able to do their job. A bleach/water mixture in a spray bottle will work well for cleaning the inside. I assume a bath room cleaner like tilex would work as well.
louisianalou
10-04-09, 03:46 PM
Yes it goes thru the new roof. And i do clean it with tilex but how do we make it stop
chandler
10-04-09, 07:10 PM
What is the relative humidity of your house? Do you run the air conditioner or dehumidifiers in the summer months?
marksr
10-05-09, 04:15 AM
Did he raise the vents? If not, they might be restricted and not exhausting as well as they are supposed to.