Fire Protection with SHERPA

Since 2012, we have developed new solutions for practical fire protection for our SHERPA connectors as part of numerous tests.

Specifically, we can guarantee fire resistance R30 (single layer) and R60 (double layer) for the concealed and visible connection variant. The Fire Stop 2.5 is used in one or two layers for the visible, screwed-on connection. The fire protection laminate swells at 150°C and protects the aluminium of the connector plates from direct exposure to high temperatures.

If the connection is milled into the main or secondary beam, the joint width may be up to 5 mm without additional protective measures being required.

BrandschutzlaminatThe fire protection laminate is applied to the wood surface around the SHERPA connector and swells at 150°C.
The activated laminate protects the SHERPA from direct exposure to high temperatures.






EXTRACT FROM THE ETA-12/0067 OF 4 JUNE 2018

ETA authorisation, DOWNLOAD

Classification R30 for beam hanger type M, L, XL and XXL in solid wood and glued laminated timber

  • milled into the wood-based members with a joint width ≤ 5 mm or
  • with a joint provided with a min. 20 mm wide position of the SHERPA Fire Stop,
  • and an increase of the minimum cross section according to Table 3,
  • valid for a conversion factor η = 0.44 according to EN 1995-1-2.

SHERPA series

Increase of edge distance on all sides exposed to fire ∆a1 = ∆a3

Increase of edge distances

Each side ∆a1

Bottom side ∆a3

mm

mm

mm

M

+20

+15

+30

L

+15

+12,5

+17,5

XL

+12,5

+10

+20

XXL


Classification R60 for beam hanger type M, L, XL and XXL in solid wood and glued laminated timber

  • milled into the wood-based members with a joint width ≤ 5 mm or
  • with a joint provided with a min. 40 mm (optionally 2 x 20 mm) wide position of the SHERPA Fire Stop,
  • and an increase of the minimum cross section according to Table 4,
  • valid for a conversion factor η = 0.44 according to EN 1995-1-2

SHERPA series

Increase of edge distance on all sides exposed to fire ∆a1 = ∆a3

Increase of edge distances

Each side ∆a1

Bottom side ∆a3

mm

mm

mm

M

+45

+50

+40

L

+40

+40

XL

+30

XXL

+35

 
FIRE STOP in the SHOP