Is anyone familiar with the Hunter Panel Xci NB insulated panel?
We are planning a new home with our retirement in mind and working for an electric utility I fully understand energy cost are not going down, so I have been studying wall assemblies. I have decided on standard stud construction with 2″ polyiso foam on the exterior with either fiberglass batts or sprayed celulose in the cavity. The 2″ foam layer meets the Zone 5 requirements according to the information I have been using from this site. The sheathing will be Hardy board or similar product applied over furring strips to provide exterior moisture control. This method seems to be a little cumbersome to install and will require OSB or a structural foam board under the polyiso layer. I have concern about the layer of OSB holding too much moisture but with the correct living space ventilation I believe this can be resolved.
I recently learned about the Hunter Xci NB insulated panels that seems to provide a feasible option providing the 2″ continuous external insulation, eliminates the need for the OSB under the foam layer, moves the drainage plane to the outside of the foam layer making window flashing and installation easier, and overall appears to be a simpler, cleaner installation than using separate OSB and polyiso products. Furring strips would be easier and less expensive to install due to shorter fastners. It is also considerably cheaper per sq ft than the foam and osb as separate components, $1.85 vs $2.48. Here is the link to the info page at Hunter panels: http://hunterxci.com
Even though these panels are a reasonably new product for use on vertical walls, this company has successfully used this basic assembly for many years in the commercial roofing industry. What kind of issues should I anticipate with the use of these panels? Does anyone else think they address the various installation issues related to using external foam board, or have I overlooked some important factors?
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