Lightweight Exterior Keystones
Feature keystones that combine with the window heads, positioned centrally over the opening.
About This Profile Family
Our keystones are a lightweight alternative designed to replicate traditional stone keystones. Featured keystone profiles, plain and bevelled, are each designed to combine with the window heads — specify the combination at time of ordering. Each is 265mm wide at the top and 215mm high, narrowing towards the base for a traditional keystone taper.
See also: window heads · bespoke keystone and surround combinations · keystones for your own home
Lead Time
2–3 weeks from drawing approval
Supply
Supply or Install
Base Coat
Polymer-Modified
Manufactured
CNC-Cut, Aberdare
Supplied ready-coated with the Taylormade VPI polymer-modified basecoat. Our mouldings are designed to imitate real stone, finished either in a textured stone-effect finish or a smooth painted finish with the look of Portland stone. The finish is confirmed at technical-submittal stage to suit the agreed project finish and adjoining facade interfaces.
Optional Specialist Finishes: Emperor Paint is confirmed compatible with our specified basecoat system and is available as an alternative decorative finish. See our FAQ for details, or contact us to discuss guarantee terms and pricing for your project.
Keystone profiles (2)
Sizing & Installation Guidance
Installation Guidance
- ·Positioned centrally over the window head — specify keystone additions when placing an order.
- ·Facing brickwork applications require the adjoining brickwork or blockwork build-up to be coordinated to suit the profile (by others).
- ·Profiles are normally fixed with a 3-strip adhesive bed and Insta-Stik secondary fixing. Mechanical fixing is rarely needed; where the size or complexity of a profile calls for it, this is reviewed at design stage.
This detail is for general guidance only and is not project specific. Always refer to the project architect details and, where applicable, the project specification. For technical queries, contact us on 01685 875410 or info@taylormadefacades.com.
Related Profile Families
Window Heads
Window heads for different wall build-ups, engineered to your window opening width. Combine with a keystone for a feature detail.
Window Cills
Surface-fixed, built-in and wall-head window cill profiles for different wall build-ups, engineered to your window opening width.
Quoin Stones
Quoin stones (quoins) for corner detailing on classical and Georgian facades, with plain, chamfered, bevelled or rounded edges and long faces of 337.5, 450 or 562.5mm.