Rivendale Fibre Cement Slate

Finely detailed surface and dressed edge

*element reference 

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Rivendale fibre cement roof slate features a riven surface and dressed edge, combining the benefit of modern slate technology with the look of natural slate.

Ideal for use on projects where a natural look is sought, the Rivendale has been used on a number of projects, where sustainability is high priority, including Hawkshaw Lodge by Cambrian Homes, in a green belt conservation area near Bury and the Altrieswood Development by Churchill Homes in Scotland.

If you would like to find out more about our truly complete roof system, underwritten by a 15 year warranty, please click here.

Size of Tile

600mm x 300mm

Minimum Pitch

100mm lap

Moderate exposure 22.5°

Severe exposure 25°

110mm lap

Moderate exposure 20°

Severe exposure 22.5°

Maximum Pitch


Minimum Headlap

Typical laps 100mm, 110mm

Maximum Gauge


Covering Capacity

(net slates /m²)

13.4 at 100mm lap

13.6 at 110mm lap

Weight of Tiling

(approx. kg/m²)

100mm lap  20.4 (0.20 kN/m²)

110mm lap  20.9 (0.20 kN/m²)

Battens Required

(net lin.m/m²)

4.00 at 100mm lap

4.08 at 110mm lap

Batten Size Recommended

(fixed to BS 5534)

38 x 25mm for rafters/supports not exceeding 450mm centres

50 x 25mm for rafters/supports not exceeding 600mm centres

Tile Nails

30mm x 2.65mm

Copper disc rivets


Fixing clips

14 gauge self sealing screws

Authority BS EN 492

Fibre cement slates meet the strength requirements of BS EN 492, achieving an average bending moment greater than 50Nm/m (Class B). The slates also have a minimum density of 1700kg/m³ and a nominal thickness of 4mm. 

The batch code printed onto the underside of the slates or slate fittings is in one or the following formats:

Example 1: NT UG21WB 24/11/11 12.10 CE

NT = Type of product (ie. Non asbestos technology)

UG21 = Product code

W = Factory of origin code

B = Class (for bending moment)

24/11/11 = Date of manufacture dd/mm/yy

12.10 = Time of manufacture

CE = CE Mark

Example 2: T 2 14 20 C1 NT

T = Factory of origin code

2 = An internal factory coding

14 = Year of manufacture

20 = Week number of manufacture

C1 = Shift of manufacture and  product type

NT = Type of product (ie. Non asbestos technology)

Example 3: CE 7 B 13 112 X NT 11:12

CE = CE Mark

7 = Factory of origin code

B = Class B (Note This may or may not be present)

13 = Year of manufacture

112 = day N° of manufacture

X = Shift (X,Y,Z)

NT = Type of Product (ie. Non asbestos technology)

11:12 = Time

Example 4:   (fittings) 14.01.14  20  &  CE M NT  &  O

14.01.14 = Date of manufacture dd.mm.yy

20 = Roof pitch (degrees)

CE = CE mark

M = Factory of origin code

NT = Type of product (ie. Non asbestos technology)

O = Internal factory code

The effectiveness of the tile or slate to operate at the minimum recommended pitch and lap may be influenced by special circumstances. Guidance on pitch and lap should be obtained from the Technical Advisory Service for the following:

• Interlocking tiles and slates where the roof slope exceeds 6 metres in length and/or the site is rated to be in a severe exposure category.
• Double-lap fibre cement slates where the roof slope exceeds 6 metres in length (severe/very severe exposure) and 9 metres in length (sheltered/moderate exposure).

Note: Consideration should be given to sealing any cut edges to prevent potential efflorescence staining. Contact TAS for further details.


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Country of Production


Environmental Management


Quality Management


Health and Safety Management


LCA study

Can achieve an A+ rating in the BRE Green Guide to Specification


Manufactured under high pressure and air cured

Raw materials

Cement, silica, fibres, pigments and fillers


> 60 years


Fibre cement is a 100% recyclable building material

Embodied Carbon Rates


Measurement metric No per sq m  Headlap / gauge M₂ conversion
KgCO₂e 13.4/13.6 100mm/110mm 13
Here at Marley Eternit, we are always on hand to offer practical and experienced support. Whether you have a query, are unable to find what you are looking for or would like to report an issue, drop your details below and we will be in touch.
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