How To Fix Metal Box Profile Roofing Sheets

5 16th hex head self drilling tek screws with a neoprene washer and stainless steel head can be used in the lower portion of the steel sheeting profile to fix the sheeting to metal or wood purlins.

How to fix metal box profile roofing sheets.

Box profile sheet fixings trapezoidal or box profiled sheets should be fixed through every valley pan lowest point of the profile at every purlin with extra fixings being used at the ridge and eaves profiles for added strength. To fix the sheets each 34 1000 box profile sheet has 6 troughs for securing we recommend you fix the sheet into trough 1 3 4 and 6. When fixing through the sheet directly into a timber purlin a 32mm timber tek screw is recommended. Screws are fixed into the flatof the sheet and into the purlin or decking.

So how should you fix roofing sheets to steelwork. Fix the sheet through the valley or crown at every purlin support using a suitable fixing. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. Set the first sheet upright against the framing purlins at the corner of the building with the first sheets overlap.

Colour caps are used to cover the ends of fixings this allows the fixing to blend into the sheets colour. The screws are nearly always self drilling and will drill through the sheet and into the purlin decking by adding a little pressure using the drill fixing gun and planwell s special fixing socket.