Shingles Eastern White untreated or treated Cedar for roofing and cladding

Eastern white Cedar shingles The best natural and man-made slates the world has to offer are available from Cembrit Ltd. Cembrit Ltd are members of the Cembrit Holding A/S Group of Denmark, one of Europe’s major building material producers with over 80 years experience in the manufacture of fibre reinforced cement products for the roofing and cladding industry. Using skills built up over 80 years, Cembrit Ltd select natural slate from Spain, Canada, Brazil, China and India. From UK quarries, Cembrit Ltd offer Welsh and Westmorland slates. A range of recommended accessories is also available....

Appearance Eastern white Cedar shingles are delivered in bundles comprising approximately 2.3m2. The bundles contain varying widths of wedged shaped shingles which are either pale brown (untreated) or green (treated). After installation both versions will weather to a silver grey. Quality assurance Eastern White Cedar has a fine even grain, low density and light weight making it easy to work. The wood has a characteristic pleasing spicy aroma. Cedar shingles are used on domestic dwellings and public buildings. They are ideal for chalets, sheds, summerhouses, ani­ al shelters and mobile homes...

General design considerations Eastern White Cedar shingles, correctly installed to BS 5534: 2003 will meet the strength requirements for the imposed and uniformly distributed wind and snow loads etc. Detailed guidance on wind load calculations is given in BS 5534: 2003 and in BS 6399: Part 1: 1996, Part 2: 1997 and Part 3: 1988. In locations where abnormal conditions may be anticipated such as elevated sites, coastal locations, areas of heavy snowfall etc., we recommend that you contact our Technical Department for further advice. Additional information can also be found in BS 8104: 1992. in...

Sitework Storage and handling • Shingles should be allowed to condition, with regard to humidity, for 2-3 days on site prior to installation. • Shingles stored outside may over time depending on exposure grey on the edges but once installed will weather evenly. • Do not store the bundles directly on the ground; place them on a raised platform. Working Eastern white Cedar shingles can be cut with a craft knife. Underlay The use of underlay is not generally recommended in normal conditions for conventional “cold” roof constructions. Additional weatherproofing in the form of underlay may be required...

Hip/Ridge Treatment The most efficient method for weathering hips and ridges is to use pre-formed ready tapered cappings available exclusively from Cembrit Ltd. They are supplied in bundles of 30, 15 right and 15 left bevel, as shown on the picture bottom left, On ridges start at both ends and work towards the centre. On hips the lowest capping should overhang the under eaves courses by the same distance as stated in the section “Starter Course” above. they require no additional fabrication. Also available treated or untreated they weather to the same silver grey shade as shingles. Alternatively...

Ventilation Please note: Pre-formed cedar cappings are not compatible with the “Evolution” ridge ventilator. The roof space and/or batten cavity must be ventilated in accordance with the latest edition of BS 5250: 2002. Particular attention should be given to the need for adequate ventilation where the insulation follows the rafter line. Cembrit Ltd offer the “Evolution” ridge ventilator specially designed for use with Cedar shingles. Ridge ventilation can be achieved using the “Evolution” under ridge ventilator which provides 19,000mm2 of free air space per linear metre. The polypropylene unit...

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. As with all natural materials, colours and textures of shingles may vary according to...