I believe you can use a water-based silicone sealant. It goes on with a caulk gun and it comes in clear. It will waterproof the seal. Good luck! A greenhouse would be so cool to have!
Is the problem actually coming from the venting windows? Do they seal up tight when closed? I would check your latches to be sure you have a good seal, you may need to update the seals if they are cracked and worn. Recaulking stationery windows is an ongoing process, right?
My back door is close to a roof valley. I have gutters, but sometimes rain comes down so fast that it just flows over the gutter and the barrier that sticks up. Then...
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That sounds terrible.
Can you check if they need to be caulked?
Good luck with that.
I believe you can use a water-based silicone sealant. It goes on with a caulk gun and it comes in clear. It will waterproof the seal. Good luck! A greenhouse would be so cool to have!
Here's a link that might help you:
https://www.ehow.com/how_5619602_seal-greenhouse.html
Is the problem actually coming from the venting windows? Do they seal up tight when closed? I would check your latches to be sure you have a good seal, you may need to update the seals if they are cracked and worn. Recaulking stationery windows is an ongoing process, right?