Onduline Roofing Sheets Overlap

The run is the horizontal distance of the ridge from the eave.

Onduline roofing sheets overlap.

15 fixings minimum should be used per sheet. Begin every second raw with a sheet cut in half vertically. Onduline roofing only comes in one length 2m x 0 95m so your first port of call should be to ensure that you have enough material for the job. To have a long lasting and guaranteed roof it is mandatory to follow the nailing order and pattern ridges start fixing the ridge element opposite to the prevailing winds end of the roof.

Ensure watertightness at ridge by applying the onduvilla foam fillers on both sides of the ridge line. Slope of the roof. Start fixing sheets at the opposite to prevailing winds end of the roof. Get your measurements right.

The roof slop is often stated as the inches of vertical rise per 12 inches of horizontal run length. Overlap 12 cm 3. Of course sheets can be cut but there s a minimum requirement for overhang 70mm at the eaves and pitching 5 degrees. Nail or screw every corrugation on eaves overlaps and ridges.

Cover the ridge with the slim cap and fix it on each side of the roof through the foam fillers on top of the corrugations. Lay ridge elements with a minimum overlap of 12 5 cm. Overlap and side overlap. Fix 19 nails or screws per sheet to have a longlasting and guaranteed roof.

Up signs indicate the direction of the ridge to lay the sheets correctly. The slope of the roof can be calculated from measurements of the rise and run of the roof. The ridge element should overlap the onduline sheet at minimum 14 cm. Ensure waterproofing by aligning the overlapping lines.