I am installing 5V crimp roofing over an addition to my small house. The additions's roof joins the house under a 14" eave. The main house slope is 5/12 or about 22.5 deg. The addition slope is 10 deg.
On the addition, the rafters are 16in o/c, and the roof deck is 7/16 OSB, with GAF synthetic felt.
My plan is to install 1x4 battens running up slope, and above that, run 2x4 counterbattens. The metal will screw to the counter battens using rubber-washer screws for this purpose. The metal is coming from Lowes and I do not know the manufacturer. However many manufacturers specify putting screws in the "peaks" and also , alternatively, putting them in the "flats" between the V's. There will be a vertical lap about 16" up from the bottom edge of the roof. Of course, I will order rake trim to run down the left and right edges.
The home is located in far north central Texas.
- Is this slope really too low for 5V Crimp?
- Is it better to install the screws in the "peaks" or the "flats"?