G25/M30 with Stubguard
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G25/M30 with Stubguard
| Certified since | Feb. 25, 2026 |
| Climate zone | Cold |
| Quality type | Certified Passive House component |
| Construction type | Cantilevered |
Description
The G25/M30 anchor was Sapphire’s first innovation in ultra-rigid balcony anchors. It uses M30 stainless steel studs and a 25mm thermal break zone to reduce deflection and thermal transfer. This system allows for fewer anchors per balcony—typically two or three—compared to older systems requiring six or more. The G25/M30’s rigidity and compatibility with lightweight aluminium balconies have made it a standard for high-performance installation. The G25/M30 anchor can be used with StubGuard®, Sapphire’s proprietary solution for maintaining fire barrier continuity around balcony anchors. It is CNC-machined offsite to reduce reliance on installer skill and minimise errors. StubGuard® simplifies the interface between cavity barriers and anchors, especially where downstands are required.
