UNDER SCREED

Our range of under-screed impact insulation solutions has been designed to meet the needs of acoustic insulation for all floor types: brick-concrete slab, concrete slab, timber joints or clt. Thanks to their properties, the products of Roll, Grei, Upgrei and Highmat lines solve acoustic problems both in new residential, commercial or multipurpose construction and in renovation.

REINFORCED CONCRETE SLAB

Impact sound insulation under screed system for new construction formed by a reinforced concrete slab (200 mm thick). Impact sound insulation in rolls or panels with variable thickness from 5 to 30 mm.
Radiant heating system including a polystyrene panel and a pipe (50 mm thick). Sand-cement liquid screed (50 mm thick) or similar for gluing finishing flooring made in ceramic or wood (15 mm thick).

Product	L_nw(dB)	R_w(dB)	U (W/m²K)
ROLL 5	53	58	0,71
ROLL 7	51	58	0,70
ROLL 10	49	58	0,49
GREI 5	49	58	0,70
GREI 8	48	58	0,68
UPGREI	45	58	0,66
HIGHMAT 20	38	60	0,35
HIGHMAT 30	36	60	0,33

HIGH LOAD CONCRETE SLAB

Impact sound insulation under screed system for supermarkets, warehouses, gyms or when there is a fusion of various activities. Formed by a reinforced concrete slab (250 mm thick). Impact sound insulation in rolls or panels with variable thickness from 8 to 18 mm. Sand-cement liquid screed (80 mm thick) or similar for gluing finishing flooring made in ceramic (15 mm thick).

Product	L_nw(dB)	R_w(dB)
SYLPRO 8 AD	56	58
SYLPRO 10 AD	55	58
POINT	49	59

TIMBER JOISTS FLOOR

Acoustic solution for a wooden floor formed by beams and boarding (24 mm thick), supplied with a reinforced concrete jet (5 cm thick) and lightweight concrete (6 cm thick) for covering industrial plants. Impact sound insulation supplied in panels with two different thickness (20 or 30 mm). Sand-cement liquid screed (5 cm thick) or similar for gluing finishing flooring made in ceramic or wood (1,5 cm thick).

Product	L_nw(dB)	R_w(dB)	U (W/m²K)
HIGHMAT 30	53	56	0,52

CLT FLOOR

This solution can guarantee the impact sound insulation for new wooden constructions made with a CLT wood floor (14 cm thick) complete with gypsum slab (12.5 mm thick) on the extrados of false ceiling. A lightened concrete (6 cm thick) for covering industrial plants and acoustic insulation in roll thickness 10 mm. Sand cement liquid screed (5 cm thickness) or similar and finishing flooring made in ceramic or wood (1,5 cm thick).