DANOSA ACOUSTIC MEMBRANE M.A.D. is a high density bitumen modified membrane specifically designed to behave as an antiresonant material. It is an efficient substitute for lead sheets.

Commercial name Thickness Roll size sqm/Pallet Weight Acoustic improvement
M.A.D. 2 2 12 x 1 m 360 3.35 kg/m2 > 4 dB
M.A.D. 4 4 mm 6 x 1 m 180 6.5 kg/m2 > 7 dB
M.A.D. 4 AUTOADH. 4 mm 6 x 1 m 180 6.5 kg/m2  
M.A.D. ERF 4 mm 5 x 1 m 150 6.5 kg/m2  


FONODAN is a two layer material made of a self-adhesive high density bitumen based membrane and a thermally bonded cross linked polyethylene.

Commercial name Thickness Roll size Presentation Insertion loss
FONODAN BJ 3.9mm 0.42 x 10 m 32 17 dBA


IMPACTODAN is a cross linked closed cell polyethylene sheet. Its internal structure provides elasticity, so it is used under concrete in order to reduce the impact noise.

Thickness Roll size Roll diameter Resistance to compression Thermal conductibility Dynamic stiffness Impact sound improvement
5 mm 1 x 15 m 0.20 m > 20 kPa 0.040 W/mK < 90 (MN/m3) > 21 dB
5 mm 2 x 50 m 0.60 m > 20 kPa 0.040 W/mK < 90 (MN/m3) > 21 dB
10 mm 2 x 25 m 0.60 m > 20 kPa 0.040 W/mK < 70 (MN/m3) > 21 dB


Waterproofing Solutions

We manufacture waterproofing solutions for flat or sloped roofs, podiums, car parks, bridges, tunnels and much more.

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