Fitting Onduline Roof Sheets

3 screws at first intermediate purlin of the sheet.

Fitting onduline roof sheets.

Covering of roofs can be hazardous. Lay sheets in the opposite direction to the prevailing winds. 5 screws at each corrugation at the end overlap or eaves. Onduline hr sheets only require a very simple toolkit to install.

Up signs indicate the direction of the ridge to lay the sheets correctly. A hammer for securing the sheets and a band saw for. Minimum recommended roof pitches for onduline roofing sheets are 15. The roofing sheets are composed of a single layer of organic fibres melded with bitumen through an intensive pressure and heat process giving the final product a highly durable finish.

Onduline roofing is often the first material of choice by enthusiasts and professionals due to its weatherproof qualities a properly fitted sheet is expected to last for fifteen years. A simple and flexible roofing system. This is particularly importantant on buildings with high humidity levels. Insulation can also be easily incorporated too providing ventilation is provided below the onduline sheet design advice should be sought from the manufacturer of the insulation products in this case.

The first raw of fixings at eave is located at 2 5 cm from the edge of the roof support osb or purlin. Onduline sheet shall be supported by purlins with maximum width distance of 45 cm.