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The Senior Slate

Bullnose Senior Slate Mock Bond Senior Slate


Senior Slates are also available in Bullnose and Mock Bond versions.



Size 420mm X 330mm
Minimum Roof Pitch 17.5° (UK – see tables below)*
22.5° (ROI – see tables below)
Maximum Gauge 345mm
Cover Width 300mm
Covering Capacity 9.7 tiles per m2 (at 345mm gauge)
Weight per 1,000 tiles 5.00 tonnes
Laid weigth per m2 48.7 kg (at 345mm gauge)
Minimum batten sizes see tables below
Tile nails 50 x 3.35mm aluminium clout head

*For roof pitches below 22.5⁰ and/or rafter lengths over 6 metres, please refer to our ‘Constructing a waterproof underlay system’ guide and video guide.

Republic of Ireland

Minimum headlap at all pitches (moderate exposure)¹ 75mm
Minimum headlap at all pitches (severe exposure)**¹ 100mm
Minimum batten size for rafters not exceeding 600mm c/c 47mm x 35mm

** superior underlay recommended
¹ maximum 6 meter after length

UK (Northern Ireland, England, Scotland & Wales)

Minimum headlap below 22.50 ¹ 100mm
Minimum headlap at 22.50 & above ¹ 75mm
Minimum batten size for rafters not exceeding 450mm c/c 38mm x 25mm
Minimum batten size for rafters not exceeding 600mm c/c 50mm x 25mm

¹ maximum 6 meter rafter length
Note: Senior Slates should be laid in a broken (half) bond pattern and Mock Bond versions in a quarter/three quarter bond pattern.

Concrete Slates Standard Slate, Half Slate.
Eaves Standard Slate.
Ridge Universal Angle Ridge, High Pitch Angle Ridge, Ventilated Ridge, Dry-Fix Ridge, Ventilated Dry Ridge, Ornamental Ridge, Universal Ornamental Shamrock Angle Ridge, High Pitch Ornamental Shamrock Angle Ridge, Universal Cocks Comb Ornamental Angle Ridge, High Pitch Cocks Comb Ornamental Angle Ridge Mono Ridge Tiles.
End Ridge Universal Angle Ridge, High Pitch Angle Ridge, Ornamental Ridge.
Hip Universal Angle Ridge and High Pitch Angle Ridge, Dry Hip.
Verge Verge Half Slate Left and Right, Dry Verge Uni Click, Continuous Dry Verge, Mortar Bedded Verge.
Valley Dry Valley, GRP Dry Valley, Mortar Bedded Valley.
Ventilation Dry Ventilated Ridge, Over Fascia Ventilation, Eaves Comb Filler, Roll Out Rafter Trays, Underlay Protector, Quick-Flex Connector, Multi Adapter

LV75 Vent Tile, LV200 Vent Tile, IV100 Inline Vent Tile.

Solar Solar Tube Tile 1 Pipe & 2 Pipe.
Colours Black, Grey, Anthracite, Turf Brown, New Brown, Terracotta, Country Red (lacquered)
Nails 50mm X 9g A/Alloy.
Clips Batten Clips, Eaves Clips, Verge Clips, Hip Clips.
Bedding Coloured Pigments as required.


Ridge Tiles and Accessories

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NOTE: Reference should be made to Code of Practice for Slating and Tiling, S.R. 82:2017, BS 5534:2014+A2: 2018 and any new code of practices in the future. Condron Concrete Roof Tiles are manufactured in compliance with E.N. 490:2011+A1: 2017 Concrete Roofing Tiles & Fittings.

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Download our Roof Tile brochure


Download our Roof Tile brochure (UK Only)