Easy 1 Minute Do It Yourself Tough Waterproof RV Ceiling Vent Pillow

Winter RVing calls for vent pillows. Make your own in a flash without sewing a stitch. If you can stuff an envelope and seal it you can do this. For each vent you will need a square of  1" thick craft foam that can be cut to about an inch larger than your vent opening frame, and a 14.5"x19"  self-sealing white poly mailing envelope (I used padded bubble poly mailers since they are nice and puffy but plain poly mailers would work too just be sure to get your foam cut an inch larger than your vent opening).

 My vent frames are about 14.5x 14" so I cut my foam into about a 15"x15"x1" squares.  I stuffed one foam square into a poly mailer and pulled the flap down far enough to make the envelope snug around the foam then sealed it. Voila! I had a waterproof vent pillow. I stuffed one in each vent opening and they work wonderfully.

 Being in a poly envelope makes them tough and waterproof, too! I purchased the 1" squares of 16"x16"craft urethane foam squares in packages of 2 in the sewing and craft notions at Wal-Mart for about $6.00 per package.You can purchase the large mailers in Wal-Mart's office supplies section or office supply stores for about $1 or $2 apiece.. E-SupplyStore.com has 25 for $12. I already notice the difference in the RV. I've been able to retain heat without running my heaters nearly as often even when the wind is blowing. If they get grimy just wipe them off with a damp cloth. They're waterproof and I have 3 of  them for a total of about $16 or about $4 apiece.