24 in. Universal Plastic Closure Strips (6-Pack)

A:  Hello, The distance between vertical strips ranges between 2-4"

A:  Mount the. Vertical stripes plastic purlins closure strips on at least a two by two backer strips they are not vertical installation are strong enough to support a rough without backer strips. Hope this helps

A:  I used these behind a clear polycarbonate panel on my horse shed. They seemed to work well in my application using them vertically on the shed door. Not sure that answers your question.

A:  You install these UNDER the edge of the panel onto rafter to provide a stable support. You must screw them down in straight line and then place first panel from that start point for your roof. The opposite side of roof ‘strips’ should not be installed until you get there with the panels so you can place them to fit under the last row of last panel. You may need to overlap the last panel more than one corrugated rib to fit edge of roof properly.

A:  These pictured are Vertical strips - they run the same direction as the rafters on blocking between the purlins. Along the purlins you would run Horizontal strips and together they will seal under the panels with no gaps

A:  Barbara: Good morning . . There are two typs of Suntuf strips to use. You will use ones that go across the perlins and the ones you talk about are the ones used on the outside edges. Check out this video and it will explain the installation and you will see the difference of the two different strips. https://www.homedepot.com/p/Suntuf-26-in-x-12-ft-Polycarbonate-Roofing-Panel-in-Clear-101699/100049922 I used these when putting a pergola over our hot tub. The installation is very easy and the results are great. Enjoy your project. Jay

A:  Should not be a gap. The panel will fit into the closure strip, resting above the purlins on top of the rafters. The closure strip should mate with the panel.

A:  I think there are better options available for metal panels, but they might work. These are specifically made for the Suntuf panels

A:  It depends if the corrugations match. The vendor for the metal roofing should supply their own closures.