CEMSIX :Corrugated sheets and accessories
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Agricultural and Industrial Roofing and Cladding CEMSIX Corrugated sheets and accessories

Cembrit companies have been manufacturing corrugated sheets since 1910. With nearly a century of production in fibre cement roofing and cladding, we are able to draw on experience of installation across the whole of Europe. Incorporating the latest technological advances, the fully accredited system of sheets allows designers to clad agricultural or industrial buildings in a Class 0 fire rated, rust and rot-proof material that has been in our built environment for decades and is available, ex-stock, in the UK. Manufactured using Portland cement, together with a formulation of superior...

Cemsix Corrugated Sheets Produced in the traditional 6" UK profile with 6 corrugations and overlaps/ underlaps on both sides of the sheet, Cemsix is available in three colouration types, all with matching accessories; traditional grey fibre-cement corrugated sheet, Cemscape/Sherwood ‘pre-weathered’ matt fibre-cement corrugated sheet and coloured corrugated sheet incorporating our unique 3 stage coating process. Natural Grey Laurel Green Olive Green Cloud Grey

Cemsix Corrugated Sheets Coloured top coat Primer coat Coated edges Coloured edges and ends Polypropylene reinforcing strips Available sheet lengths Technical Information Cemsix Width Translucent Sheet Cemsix width trimmed for spaced roofing Overall width Thickness (nominal) Density (nominal) Overall depth Maximum purlin centres Maximum rail centres Maximum unsupported overhang Approximate weight of roof as laid, with 150mm end laps, single skin including fixings Minimum pitch Translucent GRP rooflights are available in most common sheet lengths. They are used to provide natural...

Cemsix Corrugated Accessories Cemsix Barge Board Cemsix Roll Top Bargeboard One-piece Finial Used to close verge at gable ends. Nominal 200mm wing for single skin constructions and 300mm x 300mm for double skin. Used to close verge at gable ends. Nominal 200mm wing for single skin constructions and 300mm x 300mm for double skin. Used as an alternative to cranked plain wing bargeboard. Cemsix Cranked Barge Board Cemsix Cranked Roll Top Bargboard Two-piece Roll Top Finial Closes verge apex when crown cranked ridge sheets are used. Closes verge apex when crown cranked ridge sheets are used....

Cemsix Cranked Crown Ridge Cemsix Two-piece Close Fitting Ridge Cemsix Two-piece Plain Wing Ridge To suit a variety of roof pitches. 3 Girths to provide smooth closure of roof apex. Two piece ridge fitting adjustable to roof pitches not covered by standard cranked crown ridges. 350 x 350 wing Length: 1160mm Net cover: 1060mm Cemsix Cranked Crown Ventilation Ridge Cemsix Two-piece Ventilation Ridge Cemsix Open Protected Ridge Normally used in single-skin construction, particularly in agricultural buildings. This fitment may not be fully weatherproof in swirling snow or rain. Two piece ridge...

Cemsix Corrugated Accessories (continued) Plain Wing Angle Ridge Cemsix Movement Joint Cemsix Apron Flashing Piece 300 x 300 wing 5º to 60º in 5º increments Length: 1200mm Net cover: 1080mm Used where cladding changes from pitched to vertical or where sloping roof abuts a brick wall. Cemsix GRP Eaves Closer Cemsix GRP Eaves Filler Used to prevent birds, vermin or wind driven particles entering at the eaves with a drip into the gutter. Used to prevent birds, vermin or wind driven particles entering at the eaves and provides a soffit to the underside of the sheets. Used in long stretches of...

Performance Health and Safety The sheets incorporate polypropylene reinforcing strips for enhanced safety. They have been tested for fragility in accordance with ACR(M) 001:2000 test for fragile roof assemblies (to class C) Impact Resistance Test Method and BS EN 15057:2006 Fibre Cement Profiled Sheets. When tested in accordance with BS 476-3:1958 sheets achieve an EXT.S.AA designation. When tested in accordance with BS 476-6:1989 and BS 476-7:1997 sheets had a fire propagation index of ≤3.5 sheets, a sub-index of ≤0.6 and a Class 1 surface. The sheets have a Class 0 surface and are deemed...

Design Specifications Design Cemsix corrugated sheet can be fixed to steel or timber purlins. Fixing holes should be predrilled, or self drilling self tapping top fix fixings can be used. Fixing should be undertaken according to BS 8219:2001. PURLIN: the horizontal b ars on the roof to which t he sheets are fixed RAILS: the horizontal b ars on the wall to which t he sheets are fixed Direction of lay left to right Purlin spacings should be a maximum of 1375mm with two fixings per purlin per sheet. Prev Win ailing dD irec ti

Design Specifications Mitring scheme To avoid having 4 layers of overlapping roof sheets, the corners of two sheets must be mitred. Each mitre must be cut straight and cleanly either by hand or by power saw. The angle and size of mitre is governed by the end and side lap dimensions. It is recommended that a good quality butyl mastic strip is used to seal the overlapping sheets to provide a weatherproof join. Two corners of opposing sheets should be mitred the equivalent of the head and side lap (i.e. maximum 70mm x 150mm) with a gap between sheets of 3-6mm. Sheets on the perimeter of the...

Design Specifications Overlap sealing – see tables on opposite page The overlaps on low pitched roofs should be sealed with butyl strips, creating a windproof joint and protecting the fixing holes from wind driven precipitation. Butyl Strip Prevailing Wind Direction Example In this example lay right to left so side lap is protected from prevailing wind.

Sheltered to moderate sites Less than 56.5 l/m2 of wind-driven rain per spell Minimum Roof pitch Side laps treatment Double sealed T * he minimum pitch for Cemsix corrugated sheet is 5º. On roof pitches between 5º and 10º the maximum slope length is 15m. For longer spans please contact Cembrit for advice. Moderate to severe sites Less than 56.5 l/m2 of wind-driven rain per spell Minimum Roof pitch Side laps treatment Double sealed * he minimum pitch for Cemsix corrugated sheet is 5º. On roof T pitches between 5º and 10º the maximum slope length is 15m. For longer spans please contact...