20 per sheet roof pitch.
Onduline roof sheet fixings.
Onduline easyline roofing sheets have a 10 year waterproofing guarantee providing they have been installed inline with onduline recommended installation guidelines and the correct onduline accessories ridge verge fixings have been used.
Screws should be drilled at each corrugation at the end start.
3 screws at first intermediate purlin of the sheet.
Up signs indicate the direction of the ridge to lay the sheets correctly.
10o to 15o 450mm.
The first raw of fixings at eave is located at 2 5 cm from the edge of the roof support osb or purlin.
Fixed with an onduline seal smart head with uv stabilization.
Fixing 5 screws at each corrugation at the end overlap or eaves.
1 corrugation span of 610mm.
Purlins fixed at maximum side lap.
Onduline roof support design roof pitch 15o and over 610mm gradient.
Lay sheets in the opposite direction to the prevailing winds.
1 in 4 or less 2 end lap.
Start laying sheets over the gutter with 6 cm overhang maximum.
Onduline is a world leader in manufacturing bituminous corrugated roofing materials.
Recommended minimum fixings per sheet 20.
Onduline building products ltd onduline offers reliable and durable roofing and waterproofing solutions to a wide range of buildings such as individual houses institutional commercial and industrial buildings.
The onduline roof sheet fixings have beeb redesigned with an 18mm head for better aesthetics.
3 screws at third intermediate purlin of the sheet.