Acoustic IndexAcoustic Index

Schallsauger FRAMELESS SKY

SKY

NRC 0.90

CeilingFree-hanging
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Manufacturer

SCHALLSAUGER (KASPER GmbH)

SCHALLSAUGER is the acoustics product brand of KASPER GmbH in Rielasingen-Worblingen on Lake Constance. Founded in 1977, the family business manufactures printable fabric absorbers, LED-integrated acoustic panels and frameless wall and ceiling solutions on 26,910 sq ft of production space. The ALU LINE, FRAMELESS, LIGHTBOXX, MONO-LIT and ORION 8 product ranges cover wall, ceiling, room-divider and lighting applications. All covering fabrics (akustikTex) are certified to Öko-Tex Standard 100 and fire-tested to DIN 4102 B1 / EN 13501-1 B-s1,d0. Acoustic measurements were determined by the Fraunhofer Institute for Building Physics (IBP) to DIN EN ISO 354 (test report S 10734-Alpha, 2014).

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Description

SCHALLSAUGER FRAMELESS SKY is a ceiling-mounted high-performance acoustic panel made from thermally bonded polyester nonwoven. With no frame construction, SKY blends discreetly into the ceiling plane, either as a suspended acoustic island or bonded directly to the ceiling. Available in white, mottled light grey, or black, in a rectangular or round version up to a maximum of 93 × 83 in. Optionally lacquered in any RAL colour with no acoustic disadvantage. Material: SCHALLSAUGER FRAMELESS, thermally bonded nonwoven made from 100% PES staple fibres, area weight 3200 g/m², thickness 2 in. Made from 60% recycled PET bottles, 100% recyclable, fire class C-s2,d0 to DIN EN 13501-1:2018 / B1 to DIN 4102-1. Five mounting variants: wire-rope suspension with C-rail (FLZ4C, minimum distance 2.8 in from the ceiling), wire-rope suspension with drilling template in 4-point (FLZD4) or 6-point for large formats (FLZD6), each with a minimum distance of 2.4 in; 3:1 wire-rope suspension for round panels in S/M/L/XL (FLZD 3zu1, minimum distance 13 in), 3-point wire-rope for round panels (FLZD3, minimum distance 2.4 in), as well as direct bonding with Merbenit HT50 mounting adhesive + hot-melt adhesive (FLZM). Integrated into the pCon Planner for office planning. 5-year full warranty.

Technical data

Material: Thermally bonded polyester nonwoven, 60 % recycled PET, no chemical additives
Fire class (EN 13501-1): C-s2,d0 to DIN EN 13501-1:2018 / B1 to DIN 4102-1 (flame-retardant)
Application: Ceiling sail for conference room, open-plan office, foyer, hospitality, living area
Certifications: Oeko-Tex Standard 100, 60 % recycled PET bottles, recyclable, 5-year warranty
Colours: White, mottled light grey or black, any RAL colour on request

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 2 variants

NRC
0.90

Frequency values

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CompareValue
No ceiling distance (directly against the ceiling / bonded)NRC0.90
16 in ceiling distance—

NRC: 0.90 (approximated from ISO 354 octave-band data)

Institute: Manufacturer datasheet (substrate reference curve)

Weight / density: 3200 g/m²

Terms of use
Measured values as a table (2 measurements)
Schallsauger FRAMELESS SKY: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upNRC50 Hz63 Hz80 Hz100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
2 in PES nonwoven · 3200 g/m² · 16 in ceiling distance · Deckenmontiertes Akustikpaneel, abgependelt with ca. 16 in distance to the ceiling (FLZD 3zu1 / vergleichbar) · FRAMELESS PES nonwoven (no frame, no fabric cover)–0.380.380.450.590.450.730.880.880.930.910.870.980.970.981.011.051.051.061.051.030.98
Measured values as a table (2 measurements)

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