Screw counting and attaching procedure for screws attached thru Corners, Polycarbonate that is adjacent to U-Profile and thru Flashing. Back to Screw Page.

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•  #9 x 2" wood or #10 x 1-1/2" self-drilling metal screws with 3/4" sealing washers

used when screwing through 8mm, 10mm & 16mm polycarbonate.

•  #9 x 2-1/2" wood or #10 x 2" self-drilling metal screws with 3/4" sealing washers

used when screwing through 25mm polycarbonate.

-Roof -

-• Use 1 screw per foot along the top edge of roof slope. Set screw through ridge flashing and into purlin or blocking below.

-• Use 1 screw per foot along the lower edge of sheet, position between Base & Cap.

-• Aluminum Corner Trim (use 1 screw 2" from ends and every 12" along each leg of Corner).

-Walls-

-• Aluminum Corner Trim (use 1 screw 2" from ends and every 12" along each leg of Corner).

-• On side or front walls, use 1 screw per foot along the top & bottom edge of sheet, position between Base & Cap. Screw goes through sheet and into girts or top & bottom plates.

-• On gable ends, with Corner Trim at top of sheet, place 1 screw per foot along the bottom edge of sheet, position between Base & Cap. Screw goes through sheet and into girts or bottom plates. See above for screw placement in Corner Trim.

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 In body of sheet-See Polycarbonate Position & Attach.

 

 Around Doors, Fans, Shutters 1 screw every 12" around perimeter of these items as needed.

  

Note: Base & Cap screws are provided. Specify wood or metal frame when ordering. Screws to hold on U-Profile also provided.

 

Base screws are attached to roof purlins and wall girts as laid out in your design. Cap screws are positioned 1-1-2" from ends and about every 12" on-center.

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Purchase Samples & Guide --- See Quotes & Ordering

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