Roof structures based on steel SINTEF Certification

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Product groups

Barriers and membranes Boards Building modules Byggesystem i tre Cement and concrete and products related to cement and concrete Cladding products Concrete reinforcement products Door and window products Fasteners Floor products Geotextiles and Geosynthetic barriers Heating plants Insulation products Ladders and scaffolding Masonry products Prefabricated bathroom modules Prefabricated building elements Rekkverk Roofing and roof underlays Sanitary products - Sewer systems Sanitary products – machines and apparatus Sanitary products – water Sealing products Structural metallic products

Aluminium products Ceiling systems Escape ladders Roof structures based on steel Steel components Wall structures based on steel

Structural timber products Structures facing ground Surface products Various other products Ventilation products Wet room products

Roof structures based on steel

Number Product Holder Valid until

TG 2315 ArcelorMittal takkonstruksjoner med brannmotstand R15 - R60 ArcelorMittal Construction Norge AS 01.12.2022

TG 2215 Lett-Tak takelementer Lett-Tak Systemer AS 01.06.2022

ETA 15-0473 Lett-Tak roof elements Lett-Tak Systemer AS 31.12.2099

1071-CPR-7008 Lett-Tak roof elements Lett-Tak Systemer AS 01.05.2026

TG 20073 Tata Steel stålplatetak med brannmotstand R15 - R60 Tata Steel Norway Byggsystemer AS 01.10.2025