vinyl siding
vinyl siding
(OP)
Thank you for your consideration.
I have attached two photos for reference to my question.
I observed alage growth on the north-facing elevation of a house clad with vinyl siding. Relative moisture readings at inside of exterior walls read about 50%. No roof leaks, no fractures in siding, no leaking windows, etc. Siding was not removed for inspection of house wrap (if any). Interior drywall not cut for inspection of insulation. No metal flashing installed at bottom of vinyl siding but I do see what appears to be vinyl siding installed over existing siding with weep holes drilled in both. Does anyone agree with what I am seeing here? One of the photos is at base of a bump out and the other photo is at transistion of vinyl siding to parge-coated block wall.
Additional notes:
High humidity in basement, ground water intrusion in basement, inadequate ground slopes around house (drainage), etc.
Thanks,
jimjxs263
I have attached two photos for reference to my question.
I observed alage growth on the north-facing elevation of a house clad with vinyl siding. Relative moisture readings at inside of exterior walls read about 50%. No roof leaks, no fractures in siding, no leaking windows, etc. Siding was not removed for inspection of house wrap (if any). Interior drywall not cut for inspection of insulation. No metal flashing installed at bottom of vinyl siding but I do see what appears to be vinyl siding installed over existing siding with weep holes drilled in both. Does anyone agree with what I am seeing here? One of the photos is at base of a bump out and the other photo is at transistion of vinyl siding to parge-coated block wall.
Additional notes:
High humidity in basement, ground water intrusion in basement, inadequate ground slopes around house (drainage), etc.
Thanks,
jimjxs263






RE: vinyl siding
RE: vinyl siding
Dik
RE: vinyl siding
So by a process of deduction, one might reasonably assume you live in the southern hemisphere???
RE: vinyl siding
It's got nothing to do with moisture behind the siding.
This is as common as the day is long.
Mildew grows on vinyl siding where it is shaded.
Those weep holes were not drilled in the siding, siding is produced that way.
Vinyl siding is not water proof by any means and it sweats with changes in temperature.
Spray some watered down bleach on it with a garden sprayer and hose it down.
The mildew will disappear almost instantly with the bleach...add some TSP to get the beach surface tension to break a little..makes it "wetter" and will coat the siding better....
Oh, then remember to do this every year because you'll never stop this from happening where you live.
RE: vinyl siding
The other three months, your skin is cracking.
RE: vinyl siding
Best to you,
Goober Dave
Haven't see the forum policies? Do so now: Forum Policies
RE: vinyl siding
Dik
RE: vinyl siding
Yes, Brisbane.
50% RH is good. We don't have either heating or air conditioning, so live through the full cycle.
RE: vinyl siding
RE: vinyl siding