The IS4220si threshold plate is suitable for outward opening doors to prevent rain, draughts, light and noise penetration. The high performance silicone rubber compression seal, combined with the vinyl bedding pads, help provide an effective acoustic barrier.
May be used with a panic type exit device
(supplied to suit by others).
Standard Lengths
- 1000mm
- 2250mm
- Also available in: 250mm increments from 1000mm to 5000mm (Special Order Only)
Standard Finishes
- Silver anodised aluminium with grey silicone gasket
Fixing
- Stainless Steel fixing screws and plugs are supplied
- Alternatively, fasten with builder’s adhesive for concealed fixing
Approvals
- Fire tested to AS1530 Part 4 in accordance with AS1905 Part 1
- Certifications GVYI.R26629, GVWZ.R26629, GVWZ7.R26629
- Medium temperature smoke leakage approvals to AS1530 Part 7 available on proprietary door assemblies
- Acoustically tested in accordance with AS1191, IS0140.3 and ISO10140-2














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