1. When the temperature outside drops, the roof becomes cool.
2. The hot air inside condenses when it meets the cooled roofing sheet.
3. Constop Felt absorbs the condensation and stores moisture until the next day.

 

 

 

 

 

 

 

1. When the outdoor temperature rises again, Constop Felt emits the moisture.
2. The moisture is removed by venting.

 

 

 

 

 

 

 

 

 

1. The building is ventilated, for example, by using ventilation hoods.
2. Install Constop Felt coating approx. 50 mm from the eaves to avoid absorbing rain and melt water.
3. When mounting, the joints must be kept free of Constop Felt coated.

 

 

 

 

 

 

 

 

Parameter	Standard	Unit	Delta	Value
Weight	EN 29073-1	g/m2	( + / – ) 10%	95
Thickness	EN 29073-2	mm		0,8-1,1
Water absorption	Internal classification FD 15 NF P 15-203-1	g/m2 g/m2 g/m2 g/m2	0 gr 2) 45 gr 2) 90 gr 2)	>900 >700 >500   525
Reaction to fire 1)	EN 1350			A2-s1, d0
Adhesion 1)	Internal classification FD 15	N/25mm		min. 10
Adhesion after aging 1)	Internal classification FD 15	N/25mm		Improved
Sound absorption	EN ISO 20354	at	125Hz 500Hz 1000Hz 2000Hz 4000Hz	0,02 0,04 0,04 1,12 0,42
Thermal conductivity	DIN 52612	W/mK		0,038 3)
Bacterial resistance	DIN EN 14119:2003-12	Index 0 – no visible growth under the microscope		x50
Colour				Grå

1) Area of sheet metal
2) Tilt angle
3) Wipe test

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