Will a lean-to GH rot my siding?

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nurgle Molalla, OR Oct 31, 2009

Hi guys! this is my first post(great site, lots of info!) and I really want to build a lean-to green house. My biggest concern is that the humidity from the greenhouse will damage the portion of the house that it is attached to. Is this possible? Should I hang heavy plastic or some sort of insulation on the siding before I attach the greenhouse to protect the siding? Or am I worried about nothing? Thanx in advance, you guys are great!

-Tony

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Tropicman Bushland, TX(Zone 6a) Oct 31, 2009

Hi Tony
What is your side material?
My sunroom is attached to my house,vinyl siding,and I keep fans blowing 24/7 on my plants no problem,also I have plastic greenhouse attached to backside of the house same there,air movement has kept it mold free.

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jlj072174 Raleigh, NC(Zone 8a) Oct 31, 2009

Depending on the type of siding you have (e.g., masonite?) I would think putting plastic between the lean-to and siding would create a mold mecca, as there wouldn't be air circulation to dry any moisture that builds up between the two.

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nurgle Molalla, OR Oct 31, 2009

I have T-one-eleven siding. It's wood composite i believe. It holds up really well to the Pacific NW rain but i wasn't sure about constant humidity from a GH.

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Tropicman Bushland, TX(Zone 6a) Oct 31, 2009

Here again,air circulation,will help keep the humidity level 50% 0r below ,which help the control mold from forming,along with fresh air,

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jlj072174 Raleigh, NC(Zone 8a) Oct 31, 2009

I agree w/Tropicman -- keep the air flowing and you should be okay. I don't think I'd put a sheet of plastic between it and your siding though, unless you can stop water from getting between the two or circulate the air between them as well.

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