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Cedral Weatherboard and Operal

Cedral Weatherboard and Operal
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Cedral Weatherboard and Operal

Product catalog summary
Introduction
Marley Eternit specializes in producing sustainable and cost-effective facade systems, adhering to ISO 9001 and ISO 14001 standards. Their key products include Cedral Weatherboard and Operal cladding systems.
Cedral Weatherboard
This product is a low-maintenance, rot-free alternative to traditional timber, offering the aesthetic of natural wood with enhanced durability. It is available in a natural finish, 23 solid colors, and 4 woodstain finishes. Cedral Weatherboard is fire-resistant, achieving Class 0 and EN 13501-1 A2-s1, d0 ratings, and can achieve an A+ rating in the BRE’s Green Guide to Specification.
Operal
Operal is a durable, impact-resistant cladding suitable for soffits, sharing similar color options and performance characteristics as Cedral Weatherboard. It is lightweight, easy to install, and also meets Class 0 and EN 13501-1 A2-s1, d0 fire performance ratings.
Product Data and Standards
Cedral Weatherboard is made from autoclaved fiber cement, complying with BS EN 12467: 2004 standards. It measures 3600mm in length, 190mm in width, and 10mm in thickness.
Installation and Fixing
Installation starts at the facade's bottom with a start profile, using vertical timber battens. Cutting methods include handsaw, guillotine, and circular saw, with safety precautions for dust.
Trims and Accessories
A variety of aluminum profiles are available for Cedral Weatherboard, including external and internal corners, start profiles, and joint profiles, ensuring a clean finish and protection.
Applications
Cedral Weatherboard is versatile, suitable for facades, soffits, and window reveals, providing both aesthetic and functional benefits.
Operal Product Overview
Operal is an autoclaved fiber cement sheet available in various colors, manufactured from cement, organic fibers, fillers, and water, complying with BS EN 12467: 2004 standards.
Specifications
Operal sheets are available in sizes of 3050 x 1220mm and 2500 x 1220mm, with a thickness of 9mm and weight of 13.0kg/m2. They have a density of 1230kg/m3, bending strength of 23N/mm2 longitudinally and 17N/mm2 transversely, and are frost resistant with a thermal conductivity of 0.25W/mK.
Installation
Operal can be nailed or screwed to timber battens, with 3mm joints for small applications and 8mm for larger boards. Timber battens should be protected against decay and insect attack as per BS 5268: Part 5.
Fixing Details
Horizontal joints can use Type HJP profiles or open joint details. Pre-drilled holes should be 5mm, and the Operal screw will cut its own hole. Maximum distance between battens is 600mm.
Maintenance
Cedral Weatherboard should be cleaned with mild detergent for minor soiling, with repainting recommended after approximately 10 years. Efflorescence is a temporary issue affecting cement-based products.
Customer Services
Marley Eternit provides comprehensive customer support, including technical advice, product samples, and literature, committed to sustainable manufacturing under ISO 9001 and ISO 14001 standards.
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Catalog excerpts

Cedral Weatherboard and Operal-1

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard and Operal

 Open the catalog to page 1
Cedral Weatherboard and Operal-2

Cedral Weatherboard, Black Lion Street, Brighton Front cover: Cedral Weatherboard, Regency Park, Eastbourne 430.541 Cedral Operal 10:430.234 slates new style 04 Eternit's Marley dding ent cla + rating bre cem fi ve an A E n achie ca the BR ned in as defi e to Guid Green tion* ecifica Sp Marley Eternit is committed to the cost effective and sustainable manufacture of high quality, high performing facade systems. Marley Eternit’s range of cladding products are manufactured under quality management systems, which meet the requirements of ISO 9001 and environmental systems which comply with the internationally...

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Cedral Weatherboard and Operal-3

Cedral Weatherboard, Repton Park, Ashford, Kent 430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard Ideal low maintenance, rot free alternative to traditional timber weatherboarding. With the visual appeal of natural timber, simplicity of installation and resistance to rot, Cedral Weatherboard is an attractive, low maintenance alternative to PVCu. Cedral Weatherboard can be supplied in Natural finish for site painting, or in a range of 23 factory applied solid colours and 4 woodstain finishes. Our comprehensive colour range provides an aesthetic option to suit many project...

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Cedral Weatherboard and Operal-4

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard, Cherque Farm, Hampshire Cedral Weatherboard, Repton Park, Ashford, Kent Cedral Weatherboard Product data and colour range Some colours are available on short lead times. Please contact the Customer Services team for details. Cedral Weatherboard is sold in pallet quantities of 144 planks. Bespoke colours are subject to minimum order quantities of 576 planks and subject to extended lead times. Aluminium trims Supplied in colours to match and complement Cedral Weatherboard. Properties (air dry) Installed weight Standards The...

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Cedral Weatherboard and Operal-5

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard colour range Woodstains* Cedral Weatherboard is also available in a range of woodstain shades to simulate the colour and texture of a variety of timber stocks. * Due to the transparent coating, it is not recommended to install Cedral Weatherboard woodstain colours vertically. Cedral Weatherboard and Operal

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Cedral Weatherboard and Operal-6

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard general fixing information Cutting The method of cutting is dependent on the amount there is to be done. It is possible to cut the board with a handsaw, an electric jigsaw or a circular saw. By hand The board can be hand nailed without pre-drilling when the nails are at least 50mm from the end of the board. For nails closer than 50mm to the end, nail positions need pre-drilling with a 3mm drill. Normal HSS drill bits can be used but they will need regular sharpening. Nails should be stainless steel ring shank, minimum size...

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Cedral Weatherboard and Operal-7

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard trims A range of aluminium profiles are available in colours to match and complement Cedral Weatherboard. See page 5 for full range of colours. Available in 3m lengths. 31mm External corner (symmetric) This symmetric external corner is used to provide protection on external corners. External corner/window reveal (asymmetric) Can be used as an external corner or where detailing on a window reveal. External corner bay* This accessory provides a clean and sleek finish to bay window detailing. Internal corner To finish the corner...

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Cedral Weatherboard and Operal-8

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard installation Installing Cedral Weatherboard Each plank must be fixed at least once to every support. The end of every plank must also coincide with a support. Where specified, install vapour barrier or breather membrane over the wall or framework behind the timber studs. Installation begins at the bottom of the facade, where a start profile is fixed first. This is overlapped by the first plank, which starts the layering of the planks. Allow at least 150mm between bottom edge of Cedral Weatherboard and the ground. Fixing...

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Cedral Weatherboard and Operal-9

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard Cedral Weatherboard Overlapping corner This is when the board of one side overlaps the end of the board on the other side. There will always be one end of board showing with this method. These ends need to be decorated to match the finish on Cedral Weatherboard. The transverse cuts of the board at the corner positions will not be perpendicular with the sides of the boards. Plinth detail Main structure 50 x 38mm min. timber battens 600mm c/c max. fixed back to structure Cedral Weatherboard Main structure Perforated closure...

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Cedral Weatherboard and Operal-10

430.541 Cedral Operal 10:430.234 slates new style 04 Cedral Weatherboard installation Soffit detail Sloping soffit detail Perforated closure Perforated closure Line of sloping soffit (gables) Main structure 25 x 50mm batten running parallel with sloping soffit (to support end of boards) Main structure 50 x 38mm min. timber battens 600mm c/c max. fixed back to structure 13 x 50 x 75mm packing at each batten position 50 x 38mm min. timber battens 600mm c/c max. fixed back to structure 30mm lap Window head details Window reveal Cedral Weatherboard 38 x 50mm timber batten Perforated closure Damp...

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Cedral Weatherboard and Operal-11

430.541 Cedral Operal 10:430.234 slates new style 04 Corner/abutment with end profile External corner detail 3mm expansion joint Symmetrical corner profile Nail or screw fixing 100 x 38mm timber batten Nail or screw fixing 38 x 50mm treated batten Damp proof membrane Compressible foam strip Cedral Weatherboard Mastic bead Nail or screw fixing End Profile Damp proof membrane Cedral Weatherboard 50 x 38mm timber batten Main structure Internal corner detail Cedral Weatherboard 38 x 50mm treated batten Damp proof membrane Internal corner profile Nail or screw fixed Nail or screw fixed Cedral Weatherboard...

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Cedral Weatherboard and Operal-12

430.541 Cedral Operal 10:430.234 slates new style 04 Operal, Beverlo, Belgium Operal, Grimbergen, Belgium Operal Product data and colour range Some colours are available on short lead times. Please contact the Customer Services team for details. Sheet sizes All other colours are made to order and will be subject to longer lead times. Nominal thickness Nominal weight Standards The technical properties of Operal sheets are in accordance with the prescriptions of BS EN 12467: 2004, Category A, Class 3. Bending strength: Longitudinal Transverse Longitudinal Transverse Hygroscopic movement Thermal...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.