Box Profile Roofing Sheets Fixing Instructions

Single skin steel sheet installation guide.

Box profile roofing sheets fixing instructions.

Line up the first panel at the eave and to the side edge of the roof and downwind of the prevailing wind direction. Remove roofing and turn each sheet over. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head. If fixing screws are left in the valleys your roof will leak in hundreds of places.

Wear protective gloves and eye goggles. Box profile roofing consists of a corrugated sheet with profiles and valleys. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets.

The profiles on this type of roofing are square shaped with a flat edge running down the length of the panel. Fix the sheet through the valley or crown at every purlin except the top one using a suitable fixing. Each sheet should receive one single overlap sidelap see above. December 14 2017 fixing and installation guide for mcs single skin steel roofing sheets box profile 34 1000 35 1000 swaged mcs box profile roof and cladding sheets can be laid left right or right left dependant upon aesthetics and or prevailing wind conditions.

Commence fixing the sheets at the opposite end of the roof to prevailing winds. Box profile roof sheets should be fitted from left to right our screws are to be fixed through the lower part or valleys of the roof sheets. You will have to paint the roof but is cheaper than buying new roofing. Mcs roofing cladding date.

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. Apply 2 runs of 6 5 butyl sealant along the top of the sheet and one run down the top of the underlap crown for the full length of the lap diagram 2. Our stitch screws will stitch sheet to sheet on the overlap as in diagram below. What was previously a valley in the corrugations will now be a ridge and the nail hole will be in the correct place.

Permaroof is usually available in long single sheet lengths however for very large roofs separate sheet lengths can be used for ease of handling. All the information contained in our help guides are for reference only. Colour caps are used to cover the ends of fixings this allows the fixing to blend into the sheets colour. Hornsey steels limited 32 1000 box profile roof sheeting fitting installation guide updated 04 2020.

The general advice for fixing is 4 5 screws across the sheets purlin we advise using 1 screw on the overlap of the next sheet. Roof cladding box profile metal sheets corrugated metal sheets insulated roof cladding. 32 1000 roof sheeting 32 1000 roof sheeting trapezoidal single skin has 6 castles 2 strengthening ribs in the troughs with a profile pitch of 200mm depth of 32mm.