Sheila E

I have a covered area on my wood deck that I would like to temporarily enclose during winter, probably with plastic "walls" to protect my container plants, but what do I do about cold air coming up through the decking? I would like to put a floor covering over the wood to block the cold air/wind, a covering strong enough to walk on, but not one that would cause mold or rot to occur on the wood. Any ideas?

I sprayed several plants on my mother's acreage last Sunday with Round-Up Poison Ivy killer. It was a cloudy day, but it didn't rain for 3 days afterward. As of today, the plants are still looking as healthy as ever. What weed killer really kills poison ivy effectively?