I got some metal roofing today to build a cover for a sandbox I'm building.   I got some matching screws and now wonder if they're the right thing.   Specifically, in which part of the roofing do you put the screws, in the ribs or the valleys?    I got 1" screws and wonder if they're long enough to go through the high points.

 

signed, not a roofing guy

 

https://www.menards.com/main/building-materials/roofing-soffits-gutters/steel-roofing/precut-pro-rib-steel-panel/p-1444448585601-c-5717.htm?tid=7023034229249875650

I think they go thru the ridged

 

 

 

 

 

 

Don't forget the wiggle board either!

It depends on what you are screwing the screws in to,metal or wood.  Either one has a good rubber gasket but the one for metal perlins has a better cutting edge like a drill bit. I put the screws in the flat area that will correspond to the flat area that will lay on the perlins. The screws for going into 2x's is just a tapered point.

This picture has the point like what we used. Except the pic is a 2".

We went into 5/8 ply over rafters. 

 

PDF on installing this product- tempsteelcare.pdf

 

1 hour ago, John Morris said:

Don't forget the wiggle board either!

Well, I asked about this and for this particular roofing, they only have a soft foam that is designed to keep out insects and such. https://www.menards.com/main/building-materials/roofing-soffits-gutters/specialty-roofing/mr-12-inside-foam-closure-strip/p-1444424082804-c-5819.htm?tid=-4636989507126081100

 

  When i've used fiberglass wavy board before, I used what I think you are calling "wiggle board." https://www.menards.com/main/building-materials/roofing-soffits-gutters/specialty-roofing/ondura-reg-vented-closure-strips-4-pk/p-1444444725555-c-5819.htm?tid=-4636989507126081100

 

Maybe that's why they had 1" screws?

15 minutes ago, lew said:

PDF on installing this product- tempsteelcare.pdf

 

That's perfect, Lew.   I tried to find one of the data sheets and all I could find were promo ads.   Looks like I can use the 1" to screw on the flats and not worry about the closure strips.

We screwed ours down in the valley so as to avoid the dimples.

Cal