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Re: Wood Adhesives

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Check with Sika Corporation.  The have some high shear and tensile strength
adhesives.  I believe Sikadur 31 or Sikadur 32 might be of help to you.
Joseph Grill, P.E.



"Robert Fennema, P.E." wrote:

> I am designing a detail to correct a construction defect. The
> contractor failed to install blocking and boundary nailing at the top of
> the shear walls perpendicular to the roof rafters. This is only one of
> the many shear transfer connections omitted from this 12,000 SF home.
>
> Of course the roof covering is on. It is a two piece clay tile system
> set in mortar.  We would like to repair the defect without removing the
> roof covering to install the missing boundary nailing.
>
> Am considering gluing a 2 x 4 block flat onto the underside of the OSB
> roof sheathing and connecting it to a new block on the shear wall using
> an A35. I need help selecting the adhesive that would substitute for
> the lack of boundary nailing.  Does anyone know the shear transfer
> values of various adhesives that might be available?  I guess this would
> be expressed in # per sq in.
>
> Is this an acceptable idea?
>