*
when putting it on horizontal we use the rough side out…with the red lines 16oc. But when we platform frame the wall we put it on vertical and dont care which side faces out. Does it matter?
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story

A pro painter evaluates a variety of drywall sanders and dust collection systems for quality of finish, user fatigue, and more.
Highlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Fine Homebuilding Magazine
- Home Group
- Antique Trader
- Arts & Crafts Homes
- Bank Note Reporter
- Cabin Life
- Cuisine at Home
- Fine Gardening
- Fine Woodworking
- Green Building Advisor
- Garden Gate
- Horticulture
- Keep Craft Alive
- Log Home Living
- Military Trader/Vehicles
- Numismatic News
- Numismaster
- Old Cars Weekly
- Old House Journal
- Period Homes
- Popular Woodworking
- Script
- ShopNotes
- Sports Collectors Digest
- Threads
- Timber Home Living
- Traditional Building
- Woodsmith
- World Coin News
- Writer's Digest
Replies
*
No. On roofs one side is not as smooth and therefore better to walk on. Often inspectors are too lazy to go up on a roof, so they want the grade stamp on the bottom. If you have a wall with shear on both sides, you should put the grade stamp out, where the inspector can see it.
*daflash, the osb is treated on the smooth side. It has a water resistant property to it that prevents the absortion of condensation.put the rough side out, and use the stripes to locate your framing members.Blue
*Not so Blue Eyes. OSB is manufactured with a screen attached to one side of the press. This was done soley for the purpose of providing a rougher surface in order to make it safer for roofers. The smooth side is smooth because the press platten is smooth. The shiny and somewhat waxy appearence is only due to the resin that coats the strands and creates the bond.Al
*Blue,
Joseph FuscoView Image
*The outside faces out of course. Actually I've always thought that the smooth side faces the weather.Pete Draganic
*Walking and dancing on the "right" side...J
*What bones? YOu already stole them with that "any answer is wrong " question.Around these parts, the osb must be placed with the waxed surface toward the interior, or you will not pass inspection.I'm begginning to see why some folks are breaking through intothe attic!Blue