SUF4

Description Technical features and measures Tools, guides and downloads

Advantages

Airborne noise insulation towards the lower floor DnTw > 60 dB

Impact noise level towards the upper floor L’nTw < 35 dB

The ideal system for damping impact noise at low frequencies

The cross-linked polyethylene sheet protects from moisture and improves the damping behavior of the system

The mortar armed with mesh allows the entire interior partition to be built on the floating floor, reducing acoustic bridges

Application

Premises with night time: restaurants, breweries, bars

Supermarkets

Bakeries

Mechanical workshop

Music schools: music booths

Clubs in shopping centers

Graph

Technical Requirements

Function	Product	Description	Property	Value
Acoustic insulation for impact and airborne noise	Rock wool	Rock wool panel of density ≥100 kg/m³.	ΔLW ------ ΔRA	30 dB ------ 6-9 dBA (according to mortar thickness)
Acoustic insulation for impact noise	IMPACTODAN® 10	Chemically cross-linked and foamed polyethylene sheet.	ΔLW	19 dB
Cementitious screed	ARGONIV® 420 Élite	Quick-drying self-leveling mortar.	Yield	108 kg/m²
Cementitious adhesive	ARGOCOLA® ÉLITE 500	Deformable cementitious adhesive C2TE S1.	Yield	6 kg/m²
Grouting	ARJUNT® UNIVERSAL	Ceramic grouting mortar CG2 AW.	Yield	0,64 kg/m²

Recommendations

Note: This sheet is included in an acoustic box-in-box system.

Unit of Work

Acoustic insulation at low frequencies on floor formed by:
Rock wool panel with a density of 100 kg/m³ and a thick¬ness of 30 mm, ROCDAN® 233/30, placed on top of the slab and protected by chemically cross-linked and foamed polyethylene sheet, 10 mm thick, IMPACTODAN® 10 fixed to each other with self-adhesive cross-linked polyethylene tape of 3 mm thick, Overlap Tape 70 (Cinta de solape), mesh reinforced mortar with at least 6 cm thick, separated from the structure and installations by using Peripheral band tape 200 (Desolidarizador perimetral), ready to install the finishing.