The Donard
The Donard has a traditional flat tile pattern profile offering the clean lines and smart finish of an interlocking slate pattern and is available in eight colours. The Donard has good wind loading and anti capillary features ideal for performing in the Northern Ireland climate. The Donard is a...
Technical Data
Designation: T-EN490 - IL - O - RF – 297-/-/-X399 - 5.2
Maximum Pitch: 54° without special fixing (see under fixing)
Minimum Pitch: 17.5° (100mm Headlap)
Minimum Pitch: 22.5° (75mm Headlap)
Minimum Head lap: 75mm 100mm
Maximum Gauge: 344mm @ 22.5° and 319mm @ 17.5°
Size of Tile (overall): 419mm x 334mm
Hanging Length: 399mm
Nominal Cover Width: 297mm
Tile Weight: 5.2kg.
Profile Depth: 0mm
Nail Hole Diameter: 5-8mm
Nail Hole Position: 40mm from the top of the tile
Weight of Tiling per m2 51kg @ 75mm headlap & 56kg @ 100mm headlap
Net Covering Capacity 9.8 tiles per m2 at 75mm headlap & 10.4 tiles per m2 at 100 mm headlap
Battens required per m2; 2.95Lm at 75mm headlap and 3.1Lm at 100 mm headlap
Recommended Batten Size:
Minimum 38mm x 25mm for rafters not exceeding 400mm span
Minimum 50mm x 25mm for rafters not exceeding 600mm span
Eave: Standard tile
Verge:
Right hand - standard tile and special half tiles in alternate courses
Left hand - left hand verge tile and special half tile in alternate courses.
Dry Verge Northstone Rooverge available in uPVC interlocking units left and right hand with stop end eaves units and ridge capping.
Undercloak
150mm wide fibre reinforced cement strip.
Fixing (minimum)
All perimeter tiles to be mechanically fixed in accordance with BS 5534.
17.5° - 29° Perimeter tiles to be nailed or clipped.
30° - 44° Each tile in alternate courses to be nailed or clipped in a chequer board pattern.
45° - 54° Each tile to be nailed or clipped.
55° and over: each tile to be nailed and clipped.
Nails to be 50mm x 3.35mm Aluminium. Reference AA.
Clips to be Donard standard tile clip. Reference AS.
Verge; Donard verge clip reference AS.
Eave; Donard eave clip reference AS.
It is recommended that windloading calculations be carried out for all pitches, and ground conditions to ascertain if more onerous fixings are required.
Valley: Open metal valley
Abutment: Cover flashing, Secret gutter
Ridge Wet Fix: Universal angle, butt jointed, 455mm long
Ridge Dry Fix: Northstone Roovent Dry Ridge System
Hip: Angle Hip Ridge butt jointed 455mm Long
Hip: Dry Fix Northstone Roo Ridge Dry Hip System
Mono Ridge: Universal type, butt jointed 455mm long
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The colours and textures displayed on this website are as accurate as can be reproduced. We recommend referring to samples (available on request)
