Technical Information

Below are technical details for our hardwood products - Click for more downloads on product care and more.

Timber and Structure

Selected timber sections are used for a combination of strength, durability, machining flexibility and an ability to accept a wide range of finishes. The hardwood timber is naturally resistant to wood rot and fungal attack and the natural oils present in the timber make it resistant to moisture penetration.

• Moisture content – kiln dried to 12-14%
• Strength (Young’s Modulus is a measure of elasticity; the higher the value the greater the strength) – 9300 (for comparison Brazilian Mahogany is 8600 and softwood 7300)
• Specification conformance – hardwood to BS1186*
• Framework dimensions – standard depth 70mm with 68mm wide mullion and projecting storm proof casements. Where flush walling is specified incorporating shot-in casements (often required for listed buildings) a 95mm deep framework with 68mm mullion is used
• Roof wind and snow loading (where required) – satisfies BS6399*

Decorative finishes

• Paint finishes: The timber is treated with three coats of micro-porous paint or two coats of natural stain (factory spray applied) providing a fully finished product. Our fully automated finishing plant provides a high build uniform paint finish.
• Colours:
    - choice of 25 standard colours. Option to mix special colours in-house.
    - choice of 5 natural wood finishes as standard. Choose from Mahogany, Teak, Walnut, Light Oak and Antique oak
• All stains, paint primers and finishes are micro-porous allowing the timber to breathe naturally

Clifton Joinery Paint Charts

Click on the charts above to view or download (Please note: The viewer shows a low resolution image)
Colours shown are for guidance only - Please do not use images for colour matching.

Opening Windows, Doors and Fittings

• High security espagnolette catches with lockable handles
• Brass coloured finish. Also available in other designs and finishes. View our standard options here.
• Door security meets BS644*
• Window security has been tested to BS7950*
• Weather proofing using a specialist double gasket system
• Weather resistance – tested to BS6375* Class C. Windows have been tested to BS6375* Part 1, 1989 and BS5368* Part 1, 1976
• Shoot bolt security locking system is standard on side hung casements and small fanlights
• Part L compliant – test report available

Conservatories and Lantern Roofs

Using a matrix of sizes underwritten by our structural engineer every roof made by Clifton Joinery is designed to meet current British standards. Structural tie-bars to be included where necessary and if building regulation approval is required full structural calculations will be supplied. Flat roof areas and ridges are finished with plain lead work.

• Low maintenance, polyester powder coated aluminium weather capping as standard – in white or 'Lead' Grey. (other colour options available at extra cost)
• Powder coated aluminium opening roof vent using a dry glazed system with gaskets or a low-profile aluminium clad timber opening roof vent. (This option is available on standard conservatories at an additional cost). Both have performed extremely well in severe weather conditions over many years
• Manual operation using worm gear system and roof vent pole handle
• Automatic operation, featuring thermostatic control and rain sensor, is also available at additional cost
• Matching Cast aluminium polyester powder coated finials and crests are standard on all designs
• Extruded aluminium guttering and down pipes on bespoke designs. Ogee profile standard
• PVCU guttering and down pipes option available
• Cast aluminium guttering and down pipes option available at extra cost
• Colours – white or black (other options available at extra cost)

* More details can be found at www.bsigroup.co.uk

Conservatory and Lantern Roof Timber Sections

Common / Wall Rafter | Ridge / Wallplate | Hip / Valley | Skylight Trimmer | Gable Section | Electrical Concealment

Please note: the detail on this page is not exhaustive and is subject to change without prior notice.

Click for more downloads on product care and more.

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