Hi,
I have used a SIGA peel and Stick WRB over my Hunter insulated panels on my new residential construction. Before I apply my Maibec cedar shingles, I would like to use a Rain screen. I am considering using the BO Homeslicker HP. Wondering what people think of the ‘double wrb’ that this would create and how to detail the windows which are already flashed to the SIGA wrb.
Thanks
Andy
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I don't think you have anything to worry about with the double WRB. Vapor permeance of the Slicker HP is 35 perms, so you shouldn't have worries of trapping moisture between the layers. And since the windows are already flashed to the first WRB, there's really nowhere for the moisture from the second layer to intrude. No need to flash again to the new WRB. If you did flash that second layer, I'd be more worried about water getting stuck behind the second layer of tape (depending on the type of tape). All the Slicker is there for, really, is to provide an air gap for the cedar. Its WRB characteristics are a bonus, but not risky. That said, since you already have a WRB, why not just go with the Slicker Classic? http://www.benjaminobdyke.com/products/slicker-classic-rainscreen-6mm/
Hi Matt,
Thanks for your feedback. I decided on the Slicker HP because I think it has a better chance of being installed properly by my people who are familiar with house wrap but not slicker. So, you think there should be no tape around the window trim? Just end the slicker HP like I would regular slicker and shingle over it?
A
Yep - just like the Slicker Classic.
I'm curious why you'd have a problem with the slicker classic? It seems pretty straightforward and with a single admonition of "don't overlap" shouldn't be any trouble for any worker whose used a hammer stapler.