Description
Roof ventilation shafts keep the insulation layer dry by putting out the damp and moisture constituting within buildings.
A ventilation shaft must be used in every 25-50m distance if bitumen membrane is applied on the roof.
Roof ventilation shafts keep the insulation layer dry by putting out the damp and moisture constituting within buildings.
A ventilation shaft must be used in every 25-50m distance if bitumen membrane is applied on the roof.
Roof ventilation shafts keep the insulation layer dry by putting out the damp and moisture constituting within buildings.
A ventilation shaft must be used in every 25-50m distance if bitumen membrane is applied on the roof.
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