Wincilate Slate

The finest architectural slate available


Telephone 01654 761602 or email slate@wincilate.co.uk
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Purpose Made Slate Cills

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Material

wincilate-cillWincilate Slate is eminently suitable for use as window cills owing to the fact that it is chemically inert, non-porous, does not warp, shrink or rot and may be fabricated in slim profiles. It also provides a cill and window-board in one piece if required and so reduces fixing costs. Maintenance costs are also reduced drastically as the need for painting or replacement is eliminated.

Description

Two main types of cills are fabricated flate and weathered. Each type is available to suit various wall thicknesses and should have a minimum overhang on the front edge of 45mm. Cills can be supplied with a drip groove as well as a water bar groove if required.

Sizes

Weathered cills are supplied in 25mm minimum thickness and the external edge should not be less than 19mm thick. Flat cills and windowboard are supplied to a minimum thickness of 19mm. Intermediate thicknesses up to 75mm are readily available. Lengths up to 2m may be supplied although cills are more readily available in sizes up to 1.5m. An allowance is normally made at ends of openings for jointing, and intermediate lengths are but jointed with an allowance for pointing as required with approved black polysulphide mastic on installation.

Fixing

Slate cills should be stored in an area and in a manner that will keep them in prime condition; they should be handled with respect and must be carried to the fixing point. “Walking” the cills on their ends will result in damage and impair the final appearance. Cills are laid on a mortar bed of approximately 12mm and gently tamped into position ensuring a straight and level line together with the correct overhang dimension. The designed fall or weathering must be maintained and, if mastic pointing is required, joints should be raked back and cleaned to the depth of slate before mortar sets. Immediately after fixing remove any surplus mortar and debris from surfaces, ensuring that throating is clear on underside. Finally, all surfaces should be wiped over with a clean, damp sponge to remove any traces of cement or plaster that may remain. Protect cills from any possible damage by following trades.

Finish

Cills are supplied in their natural blue-grey colour and are rubbed smooth on exposed face and edges.

When specifying remember to ask for:- Wincilate “Best Quality Welsh Slate Cills”

We also offer dark grey Brazilian slate in 30mm thickness.

For further information or a quotation please click here.

Slate Products

  • Cills
  • Copings
  • Cladding
  • Flooring
  • General Use
  • Memorials
  • Random Paving, Walling & Slate Fill
  • Kitchen Worktops
  • Slate Wine Racks
  • Garden and Water Feature Stones

Contact Us

Wincilate Welsh Slate, Aberllefenni Slate Quarries, Machynlleth, Powys SY20 9RU
Telephone: 01654 761602
Fax:01654 761418
Email: slate@wincilate.co.uk

Copyright © Wincilate Slate 2014

Latest

  • Aberllefenni Welsh slate plaque dedicated at Westminster Abbey
  • Wincilate to sell its property portfolio for £1.5 million
  • Wincilate had a very successful Tradex 2015 Show
  • Wincilate to attend Tradex 2015 Exhibtion
  • Wincilate launch new website which is mobile friendly

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