OSB pannels with holes

Michel Thibault · 02-02-2008, 09:46 AM

Hi every one,

Have you ever seen holes in the OSB pannels for the outside walls? What is the purpose? I got pictures for those who want to see it

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Dennis R · 02-02-2008, 11:12 AM

The photos can be viewed here

Inspect Guy · 02-02-2008, 11:36 AM

It almost looks like they used the sheathing as foundation wall forms. I have seen where a owner-builder use the foundation wall forms for flooring after they took it off the walls.

Jim Zborowski · 02-02-2008, 11:48 AM

I have seen them on pre-fab walls. They're used as " hook holes " to lift the sections. Other than that, no other purpose I can see.

**Matt Fellman** · 02-02-2008, 01:02 PM

Looks about like a 12 gauge..... rough part of town?

**Jerry Peck** · 02-02-2008, 01:42 PM

So they can inject foam insulation into the stud cavities after the drywall is installed?

**Jerry McCarthy** · 02-02-2008, 02:18 PM

Naw.... they're venting the stud bays!

Michel Thibault · 02-09-2008, 12:39 PM

Thanks guys!

I received an answer from the CMHC (Canada Mortgage and Housing, looks like the purpose for drilling holes in the pannels it's for ventilating between studs.

**Jerry Peck** · 02-09-2008, 12:58 PM

Originally Posted by Michel Thibault

I received an answer from the CMHC (Canada Mortgage and Housing, looks like the purpose for drilling holes in the pannels it's for ventilating between studs.

Michael,

Me no comprehend, kemosabe.

You have stud spaces, later filled with insulation, which are then ventilated?

How, kemosabe?

Michel Thibault · 02-10-2008, 10:45 AM

Originally Posted by Jerry Peck

Michael,

Me no comprehend, kemosabe.

You have stud spaces, later filled with insulation, which are then ventilated?

How, kemosabe?

During the winter, a minimum of relative humidity could pass through out the insulation (for any reasons:bad installation etc.) than..view the OSB pannel don't let go the moisture...the moisture has no way out and could damage the wood frame. By the way...that question was asked to engineer, architect and believe it or not...I received 10 different opinion ..the most one is for ventilating?

They are use mostly on the WestCoast (Vancouver, British Columbia)