Kestrel Exterior Cill Range
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Technical Bulletin Kestrel Exterior Cill Range This technical bulletin will guide you through the selection and use of Kestrel's range of PVC-U cills. It gives guidance on cill selection, explains cill terminology and details important installation requirements. Guidance on Cill Selection Cill Size Determined by the position of the cill in the opening. It is recommended that cills overhang by a minimum of 25mm. Platform The platform size is determined by the outlet position of the window drainage slot and back leg details on the rear of the profile. Note: Cill size should NOT be selected purely on the outer frame front to back dimension. Material Cills are available in 100% virgin material or recycled core with a co-extruded virgin skin. Welded Cills manufactured from 100% virgin material produce high quality joints which are not easily seen. Cill Drainage Drainage Path Cill Terminology Size Platform Upstand Height (Knock Off) 30mm for ALL Kestrel cills Cill Range **See current price list for finish opti

Technical Bulletin Kestrel Exterior Cill Range Important Installation Requirements There are two methods of installation: 1. Cill to building first. 2. Cill to frame. Diagram 1 Silicone Seal Cill to Building First a. The cill is positioned in the aperture and levelled. b. It is bedded on either a sealant or mortar bed. c. A run of sealant is applied to the cill and across the ends before the window is fitted (Diag. 1) Cill to Frame a. The cill is cut to length. b. A run of sealant is applied on the frame (Diag. 2) c. The cill is fitted using self drilling screws (Diag. 3) Counterbore the...