103 MULTICRAB - TECHNICAL INFORMATION - 2023 MULTICRAB ASSEMBLY DETERMINATION OF THE HEIGHT OF THE ROOFER PROTECTION The height of the guardrail for roofer protection should be determined according to the construction details of AFNOR's NF 096 certification framework. Formula: h min = 1.50 m + h1 - d where h min = minimum height of the protection system with h ≥ 1.00 m h1 = distance between the gutter and the deck with h1 ≤ 0.80 m d = distance between the inside of the protection system and the gutter with d > 0.70 m EXAMPLE OF A PROTECTION SYSTEM OF 2.00 m h1 = 0.60 m d = 0.90 m h min = 1.50 + 0.60 - 0.90 = 1.20 m Making a guardrail of 1.50 m to comply with the spacing of the scaffolding fixing nodes. h1 ≤ 0.80 m L ≥ 0.60 m Protective net or wire netting Toe board A d ≥ 0.70 m h min Deck 1 Anchor point per row of standards. NETS OR WIRE NETTING USED FOR LATERAL PROTECTION They must be able to arrest the fall of a person who slips on a steep surface. U- type and in accordance with standards EN 13374 and EN 1263, their mesh size must not exceed 100 x 100 mm. Users must ensure that there are enough attachments on the net or wire netting according to their capacity. You can also install solid sidewalls with wooden or metal boarding. If they are exposed to high winds, they will require a special technical study. The QR code lets you directly access the online assembly video on your mobile.
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