 dampy snow no not not at all in fact it will make it worse you want to you basically want to let this dry out as easily as possible look anything that's outside in it is always going to be damp just because of the nature of it but i don't think you want to close this in add insulation or anything like that that's just going to hold moisture it has absolutely zero benefit as insulation because you're not trying to keep the heat on one side and the cold on the other