Great discussion. Any Detail about Shelf angle with Insulation above lintols?
For a number of years now, I have been specifying something similar to HB’s HB-213 Adjustable Veneer Anchor or HB-200-X. I like the BL-407 since there is less horizontal surface area to block water draining in back of the insulation (either mineral wool or plastic foam). If I can verify that the thermally broken ones are less expensive, I might switch to those. I would not use the “D” anchors. There is a length of screw between the anchor plate and the stud (usually not less than 1-1/2 inch more likely closer to 2 inches that creates some structural instability. I have heard of cases when the AHJ will require structural analysis if this portion of the screw is too long.
You could also look at CPT-16, http://www.ctpanchors.com
H&B makes a very similar product BL-407, as well.
Good news, it comes in different sizes for different thicknesses of insulation. Bad news is that it is vertical so the contractor can not use them as a “seat” for the insulation, like the horizontally oriented HB-213, which I have also used.
Liz,
We have always specified this HB product for the condition you describe:
http://www.h-b.com/images/submittal/12XSEALSISANC.pdf
Comes with a self sealing peel-and-stick “gasket” to plug the hole it makes through the WRB. Does not compress the continuous insulation or gypsum sheathing, and has a very low thermal conductance penalty.
Never been a big fan of the H-B X-seal impaling clips.
The Pos-I-Tie is fantastic but expensive. I really like Heckman’s Thermal Clip - http://www.heckmannbuildingprods.com/Pos-I-Tie_Thermal_Clip.html The H-B 2-clip seems like a variation of this; perhaps not as robust so as to bring down the cost.
Has anyone seen any problems with the vertical leg (non-shelf) type products such as H-B BL-407? I’d be concerned about the tie binding in the slot. Same concern over time with the horizontal shelf type anchor. The shelf anchors also seem like they provide too much opportunity for water migration issue as the ice and snow melts.