Hello,

I am going to be building, with help of a friend or two, a three seasons porch addition to my home in Wisconsin. What we are going to build is a vaulted ceiling porch that will tie into my existing roof line since I have to replace the existing roof due to hail damage now is the time for me to make a nice addition. The porch will be framed in and I will be using sliding glass doors, instead of screen windows, around the porch. The floor will be done with pre-treated plywood to keep out the bugs but will not be insulated. The outside will be covered with siding and shingles and will look like part of the house instead of a porch add-on.

My question is can I place vinyl flooring on the plywood without it coming off in the extreme temps. of Wisconsin? Would I have to worry about mold and mildew since the flooring will essentially be dry because the sliding glass doors will seal off the room from rain?

Thanks a bunch for you reply and assistance.