Cembrit (now called Swisspearl) Jutland is an attractive flat, square-edged fibre cement slate that is manufactured to the highest European standards. They are lightweight, pre-holed along with being easy to handle and install. Swisspearl slates are durable and an economical choice for all project types.

Jutland slates are manufactured using Portland cement together with a non-asbestos formulation of superior blended synthetic and cellulose fibres. The slates are pigmented during production and are fully compressed. Jutland slates conform to class B in strength, the highest classification for fibre cement slates which are manufactured in accordance with European Norm EN429 – the European Standard for the manufacture of fibre cement slate.

They are finished with a high-quality semi-matt acrylic coating to the top face and edges, with a tinted high-performance binder applied to the back face.

Please note when installing slates it is advised to use 25x50mm (2x1”) roof batten – click here to view our range of roof battens.

FEATURES AND BENEFITS

• Tile thickness: 4mm
• Suitable for roofs with a minimum pitch of 20° - there is no maximum pitch but please contact Swisspearl’s technical team for further advice
• Coverage: 13.4 tiles per m2
• Smooth flat surface
• Non combustible
• Low weight (20.4kg/m2 once installed)
• Weather resistant
• BBA approved
• 30-year warranty

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.

CUTTING AND DRILLING

Jutland slates can be cut using the traditional method of scribing and breaking over a straight edge. Angle grinders are not recommended due to nuisance dust levels. Additional fixing holes should be drilled using a 4.5mm drill bit. Holes should not be less than 20mm from the edge of the slate. After cutting or drilling remove all dust from the slate to avoid possible staining

FIXING

Jutland slates must be laid in accordance with the latest Code of Practice for Slating and Tiling, BS 5534:2014, and the Code of Practice for Workmanship on Building Sites – Slating and Tiling, BS 8000:Part 6:2013.

The roof structure should be checked to ensure that it is to a true line and squareness tolerance, and set out to ensure that:
• the minimum cutting of slates is necessary.
• the long edges of the slates are parallel to the direction at which the water will run off the roof. In some instances this may result in raking cuts to all the eaves and the ridges.
• the horizontal lines of the courses are straight and true.
• the perpendicular lines of the slate are to a true alignment and allow for a small ‘perp’ gap between slates (3mm 1mm).
The last two items above are best achieved using a chalk line.

The method of fixing is to centre nail each slate with 2no 2.65mm x 30mm long copper nails and secure the tail of the slate with 1no copper disc rivet of suitable quality correctly bent downslope through 90°. Please click here to view these copper fixings.

Slate and a half and double slate sizes should be drilled to accept three nails and two disc rivets as well as fixing holes for the slates in the course above. At all verges and abutments, alternate slate courses must start with slate and half width to maintain bond. Slate and a half widths must be used if the half slate is less than 150mm wide. At valleys and hips where slates need to be cut on the rake, wide slates must be used to maintain an adequate width at the head or tail. At mitred hips on low pitched roofs wide slates should be used beneath the hip capping.