How To Fix Metal Box Profile Roofing Sheets

So how should you fix roofing sheets to steelwork.

How to fix metal box profile roofing sheets. If necessary see manufacturer for details apply a strip of butyl sealant along the. 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. 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. 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.

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. Set the first sheet upright against the framing purlins at the corner of the building with the first sheets overlap. Longer screws are available in lengths up to 175mm which can be used when you need to install through thicker material such as insulation. You could drill a hole through both sheeting and steel push a bolt through and attach a nut on the back.

Fix the sheet through the valley or crown at every purlin support using a suitable fixing. Colour caps are used to cover the ends of fixings this allows the fixing to blend into the sheets colour.