Nofirno Solo board Installation
NOFIRNO is the sealing system for fire safe ducting of cables in building and industrial applications. Depending of the actual situation, the following sealing solutions are possible:
NOFIRNO Solo board - Installation instructions
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Step 1
For smaller sized conduit openings or for penetrations with a low cable fill the NOFIRNO®- SOLO board system can be applied. Use is made of NOFIRNO® boards and NOFIRNO® sealant. In this case more sealant is needed to obtain sufficient mechanical stability. |
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Step 2
A NOFIRNO® board is placed fittingly inside the penetration on top of the layer of NOFIRNO® sealant. A layer of NOFIRNO® sealant is also applied on top of the board as well, in order to assure effective stability and smoke tightness.
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Step 3
These cables then are spread out on the NOFIRNO® board inserted at the bottom of the conduit opening. Care has to be taken that sufficient NOFIRNO® sealant is applied in between the cables. Separation of the cables preferably about 5-10 mm.
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Step 4
On top of the cable set another layer of NOFIRNO® sealant is applied to obtain optimum tightness between each of the cables and between the cables and NOFIRNO® boards. This also improves mechanical stability of the penetration seal.
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Step 5
The top NOFIRNO® board is cut to size and tightly inserted into the open space of the conduit. The NOFIRNO® board should be a bit oversized and can be forced into the opening using a piece of wood and a hammer. |
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Step 6
Finally all seams around the NOFIRNO® boards are sealed with NOFIRNO® sealant. The NOFIRNO® sealant can be smoothed by hand. Wet the hand with soap and water to avoid sealant sticking to the hand.
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