Type U Undersill Envelopment Tray

Bespoke envelopment trays providing the requisite damp proof course (DPC) presence in and around stone, concrete and jointed solid sills when incorporated within cavity wall construction.

Features and benefits:

• Prevents damp permeating inwardly.
• Integral end upstands.
• Integrates with reveal DPC.
• Satisfies Local Authority Building Control (LABC) 7.4.13.
• Satisfies National House Builders Council (NHBC) 6.1, table 9.
• Cavity insulation does not affect tray placement position.
• Does not extrude or compress under load.
• Masonry skin styles: No known limitation – flat finishes.
• Undulating masonry faces: Compatible.
• Curved wall on plan applications: Yes (see manufacturer's literature for details).
• Arrested water evacuation: Integral transient drainage apertures.
• Thermal transmission of material: Negligible.
• Jointing method: Glove lap 150 mm if over 2400 mm long.