Brick veneer anchorage with SIP wall construction

[HouseBoy]

All,
I am looking for some specific recommendations for the anchorage of a normal brick veneer wall tie to a SIP.
The gravity load is supported on a concrete foundation.

I am wondering about the following things (for example):
Is it adequate to use the common 22 gage corrugated wall ties or must something more substantial (like pintel style or pre-bent wall ties) be used?
Is it adequate to use only one fastener or are two fasteners per wall tie required?
Is it adequate to use nails or must screws be used?

I understand that 2 fasteners are better than 1 and that screws are better then nails but I am looking for specific data and/or standard recommendations from SIPS makers for their products.

Maybe the right question is : "What are the pullout load capacities of various fasteners (nails, screws etc. ) for a give SIP facing material?" and with that information, one can determine what fastening requirements are appropriate based on some "suction loading" of the building cladding.


I am in a relatively low seismic hazard area (Ohio) but I would think this is especially important in higher seismic areas.

I find no SIPS makers addressing these questions directly.
Does anyone know of any SIPS makers that address this topic directly?
It seems to me that there ought to be some standard but I can't find any specific info.

Thanks,
Steve

 

[dhengr]

HouseBoy:
I’d talk with some SIP manuf’ers. The outer skins on their panels are usually 3/8th or ½” osb, or some such. And, in that respect they should not be appreciably different than the ½” sheathing found on many stick framed bldgs. Some of them have studs or various nailing blocks within the foam layer too, for regular nailing and framing to them. I’d also talk with nail manuf’ers. and/or look at their test reports (ICC ESR reports on their nails) as to the holding strength of their various nails in the SIP skins. As long as you have a good brick ledge this shouldn’t be appreciable different than a brick veneer on a regular stick framed bldg. The code should address the tie types and spacing. The real issue is inspecting to be sure that the builder makes some attempt to actually install some (all) of the needed ties. Then also, detail some soft joints so the brick veneer does not join stucco or some such in a hard joint. That joint only works for a few weeks (a short time), then it becomes a headache for the bldg. owner. There should be soft joints at other appropriate locations also.

 

[masonrygeek]

As dhengr said, contact a SIPS manufacturer for requirements they would have. You can also contact wall tie manufacturers like Hohmann & Barnard for strength of ties. You will likely need something more than a nail and corrugated ties to attach the brick veneer to the panels, but the info from the various manufacturers should help. Also. the number of screws used to attach the tie to the panel will depend on the tie chosen. Some ties that have single screws have the necessary strength.