Roof Slate Jutland fibre cement slate

Jutland slate The Cembrit group have been manufacturing and developing fibre cement products, including slates for over 80 years. Cembrit prides itself on manufacturing fibre cement slates which achieve the highest approvals from local, national and international agencies in the fields of product quality and sustainability. Cembrit fibre cement slates are complemented by a range of fibre cement ridges, details of which are available in the Roof Slate Accessories brochure. Cembrit slates and ridges can be found on all types of roofs across the British Isles. Information on the complete Cembrit...

Performance Compatibility Jutland slates are compatible with most common building materials, except those vulnerable to alkaline attack. When materials such as aluminium are used as flashings or gutters they should be protected and maintained with bituminous paint if they will be subject to water run-off from the slates. Jutland slates show satisfactory frost resistance after 100 freeze/thaw cycles and satisfy the requirements of BS EN 492: 2004 section 7.4.1. Tolerances Jutland slates are made to the following dimensional tolerances in accordance with BS EN 492: 2004. Length or width: ± 3.0mm...

Appearance Jutland slate is available in Graphite, Blue/Black, Russet and Autumn Brown. Autumn Brown

Jutland slate is available in 600x300mm (24”x12”), 500x250mm (20”x10”) and 25 mm 400mmx240mm (16”x9”) 25 mm Smaller sized slates are ideal for details such as dormers, gables, porches and 250 mm +/– 3 other restricted areas where maintaining mm correct bond can be difficult. the 500x250mm (20”x10”) is also the commonest format for natural slates 300 mm +/– 3 mm currently used in the UK. Diagrams 1 & 2 below indicate how different slate sizes can affect the appearance of a roof. Table 1Technical specification Size Autumn Brown 600x600mm and 500x500mm double slates are available for use on verges,...

General design considerations Table 2  Moderate exposure Jutland slate laid to BS 5534 will meet the strength requirements for the imposed and uniformly distributed wind and snow loads etc. The site exposure rating and the pitch of roof rafters will determine the size, pattern, lap and fixings for the slates. For UK and Northern Ireland locations, BS 5534: 2003 will indicate the expected degree of exposure. Wind driven rain ratings less than 56.5 l/ m2 per spell are described as ‘moderate’ (see table 2) and those above 56.5 l/ m2 per spell are described as ‘severe’ (see table 3). Detailed guidance...

Sitework Storage and handling Jutland slates should not be allowed to become wet during storage as this may cause efflorescence staining as a result of water accumulating between the slates surfaces. If stored outside for short periods, the polythene hood should be removed and the slates open stacked and covered with a tarpaulin. The slates should be carefully stacked on their longer edges with timber bearers, battens or boards between layers. The lowest layer must be arranged on a firm level base. To avoid splitting the batten, the maximum nail diameter should not exceed one tenth of the batten...

The information contained in this publication and otherwise supplied to users of the company’s products is based on the company’s general experience, best knowledge and belief. However, because of factors beyond the company’s knowledge and control, which can affect the use of the products, no warranty is given or implied with respect to such information. The company’s policy is one of continuous improvement. Cembrit Limited therefore reserves the right to alter specifications at any time and without notice. 57 Kellner Road London SE28 0AX As with all manufactured materials, colours and textures...