Acoustic Glass Partitions Manufacturer India — STC 38–50

Acoustic Glass Partition Systems — Technical Specifications

Acoustic glass partition systems from Railings India are specified for applications requiring high-performance sound insulation combined with full glazed transparency. Systems achieve STC 38 to STC 50 depending on glass specification and acoustic seal configuration. Laminated acoustic glass with PVB or acoustic PVB interlayer provides speech privacy for hospital consulting rooms, government boardrooms, airport business lounges and institutional conference facilities.

STC Rating Selection Guide

STC Rating	Performance	Recommended For
STC 38	Normal speech largely inaudible	General office meeting rooms, hospital admin
STC 42	Normal speech inaudible	Hospital consultation rooms, IT park boardrooms
STC 45	Loud speech barely audible	Legal chambers, government boardrooms, airports
STC 50	Loud speech inaudible	Hospital psychiatry, confidential institutional spaces

Applications in Large Projects

Hospitals and Healthcare

Acoustic glass partitions for hospital consultation rooms, psychiatry wards, counselling suites and confidential patient areas. STC 42–50 for HIPAA and patient privacy compliance.

Airports and Transit

STC 42–45 acoustic partitions for airport business lounges, VIP areas and air traffic control support offices requiring speech privacy from terminal noise.

Government and Institutional

Acoustic glass partitions for government boardrooms, legal chambers, IIT research offices and institutional conference rooms requiring CONFIDENTIALITY. GeM portal supply available.

IT Parks and SEZ

Acoustic glass boardrooms and enclosed offices for IT park and SEZ commercial developments where open-plan office background noise is high.

How Acoustic Glass Partitions Achieve Sound Insulation

Sound insulation in a glass partition depends on three factors: the mass of the glass, the damping provided by the laminate interlayer, and the integrity of the perimeter seals. A single 10mm toughened pane achieves around STC 35 because sound passes through rigid glass at its coincidence frequency. Acoustic laminated glass solves this by bonding two glass panes with a viscoelastic acoustic PVB interlayer that absorbs vibration across the speech frequency range of 500Hz to 4000Hz, where the human ear is most sensitive.

Railings India specifies asymmetric glass build-ups — for example 6mm + 8mm laminated rather than 6mm + 6mm — because differing pane thicknesses shift the coincidence dip and improve performance at critical frequencies. The perimeter detail matters equally: a partition with STC 45 glass will only deliver STC 38 in practice if the head, sill and jamb seals leak. Every Railings India acoustic partition is supplied with continuous acoustic EPDM seals, and acoustic doors are fitted with automatic drop seals at the threshold.

Glass Build-Up Specifications by STC Rating

Target STC	Glass Build-Up	Interlayer	Total Thickness
STC 38	6mm + 6mm laminated	Standard PVB	12.76mm
STC 42	6mm + 8mm laminated	Acoustic PVB	14.76mm
STC 45	8mm + 10mm laminated	Acoustic PVB	18.76mm
STC 50	10mm + 12mm laminated	Acoustic SGP	22.76mm

Double-glazed acoustic partitions with two laminated panes separated by a 50mm to 100mm air cavity can exceed STC 50 where the highest privacy is required, such as hospital psychiatry rooms and legal arbitration chambers. Cavity blinds can be integrated between the panes for visual privacy on demand.

Compliance and Documentation

Every acoustic glass partition project is supplied with the laminated glass conformance certificate to IS 16613, the acoustic test report stating the laboratory-measured STC value for the specified build-up, and shop drawings detailing the perimeter seal arrangement. For government and institutional projects procured through the GeM portal, full technical compliance documentation is provided to match tender specifications. Systems comply with NBC 2016 Part 4 fire and life-safety provisions for internal partitions and with IS 875 for any partition incorporating structural glass fins.

Railings India, part of Sun Corporation India, manufactures acoustic glass partition systems from Hyderabad for hospital developers, IT park facility managers, PMC consultants and EPC fit-out contractors. Reference supply includes 800-Bed Hospital (Hyderabad) STC 42 consulting room partitions, SEZ IT Park (Bengaluru) meeting room acoustic glazing and Microsoft Campus corporate acoustic packages — with laboratory STC test reports, IS 2553 glass MTCs and NABH-compatible privacy documentation supplied as standard on acoustic partition orders.

Acoustic Glass Partitions — NBC / STC / IS 2553 Specification Matrix

Reference specification matrix for PMC technical submittals and EPC fit-out BOQs. STC ratings range 32–50 depending on glazing configuration; hospital consulting rooms require STC 42 minimum. Values align to NBC 2016 institutional occupancy and IS 2553 safety glazing.

Application	Occupancy	STC target	Glazing spec	Frame	Standard
Hospital consulting / examination room	Institutional	42	DGU acoustic 24 mm + PVB interlayer	6063-T5 aluminium	NABH privacy + NBC Ch. 4
Hospital ward / ICU screen	Institutional	45–50	DGU acoustic 28 mm + acoustic seal	6063-T5 aluminium	NABH + HAG compatible
IT park meeting room — standard	Commercial	38–42	DGU 20–24 mm acoustic	6063-T5 powder coat	IS 2553 + STC lab report
IT park boardroom / executive suite	Commercial	45–50	DGU acoustic 28 mm + perimeter seal	6063-T5 anodised	STC lab report mandatory
Call centre / open-plan acoustic pod	Commercial	35–38	DGU 16–20 mm	6063-T5 aluminium	IS 2553
Microsoft Campus meeting rooms	Commercial campus	42	DGU acoustic 24 mm	6063-T5 RAL finish	STC lab report + shop drawings
IIT Hyderabad research lab screen	Institutional	38–42	DGU 20 mm acoustic	6063-T5 aluminium	IS 2553 + NBC

STC Rating & Glazing Configuration — Acoustic Guidance

STC target	Glazing configuration	Seal detail	Typical use
32–35	Single 10 mm toughened + acoustic film	Standard perimeter gasket	Visual privacy — low acoustic requirement
38–42	DGU 20–24 mm — asymmetric pane thickness	Acoustic perimeter seal + floor track	Hospital consulting, IT meeting rooms
42 (hospital minimum)	DGU 24 mm acoustic PVB interlayer	Full perimeter acoustic seal	800-bed hospital consulting rooms — NABH
45–50	DGU 28 mm + laminated inner pane	Double-seal track + head deflector	ICU screens, executive boardrooms

System Selection Matrix — Acoustic vs Framed vs Drywall

Decision reference for PMC teams selecting acoustic partition systems by privacy and STC requirement.

Factor	Acoustic glass partition	Framed glass partition	Gypsum / drywall	Operable acoustic door
STC range	32–50 (lab tested)	28–38	40–55	38–45 (system dependent)
Daylight / visibility	Full — with film option	Full	None	Partial
Reconfiguration	Moderate — modular panels	High — demountable	Low — fixed build	High — sliding/folding
Sector guide	Healthcare	IT parks	General commercial	IT parks
Product page	Acoustic partitions	Framed partitions	N/A	Glass partitions

PMC Documentation Checklist — Acoustic Glass Partition Systems

Documents supplied for acoustic partition PMC submittal packages. Request via project enquiry.

#	Document	Format	PMC use
1	STC laboratory test report — system assembly	PDF — NABL lab	Acoustic design basis approval
2	NABH privacy compliance statement (healthcare)	PDF	Hospital accreditation dossier
3	NBC safety glazing compliance statement	PDF	Authority submittal
4	AutoCAD shop drawings — plan, elevation, seal detail	DWG + PDF	Design freeze / GFC
5	Aluminium MTC — IS 617 grade 6063-T5	PDF per batch	Material approval
6	Glass MTC — IS 2553 / IS 16613 acoustic DGU	PDF per batch	Material approval
7	Acoustic seal specification sheet	PDF	STC performance verification
8	Installation method statement — acoustic seal procedure	PDF	Site QA protocol
9	Third-party inspection coordination letter	PDF	PMC QA protocol
10	O&M manual — seal replacement, panel maintenance	PDF	Handover dossier

PMC pre-submittal checklist: □ STC target confirmed (32–50 range)  □ STC 42 minimum for hospital consulting rooms  □ NABL lab report attached  □ Acoustic seal detail on drawings  □ NABH privacy statement (healthcare)  □ Shop drawings stamped pre-GFC  □ DGU pane thickness asymmetric where required

EPC Contractor Workflow — Acoustic Glass Partition Package

Stage	EPC action	Railings India deliverable	Duration	Approval gate
1. Enquiry	Share floor plan, STC target, room schedule	Budgetary spec + STC matrix	2–3 days	PMC acoustic review
2. Technical submittal	Issue LOI / draft PO	Full document pack (items 1–8)	5–7 days	PMC + acoustic consultant
3. Shop drawing approval	Comment seal detail, door acoustic rating	Revised stamped drawings	7–10 days	PMC design freeze
4. GFC release	Confirm quantities per floor / ward block	Final BOQ + production release	2 days	EPC procurement
5. Fabrication	—	Hyderabad factory QA + batch MTCs	4–6 weeks	EPC factory inspection (optional)
6. Mock-up (if required)	Install sample acoustic module — site test	STC field test report	1–2 weeks	Acoustic consultant sign-off
7. Dispatch & installation	Floor-wise delivery aligned to fit-out programme	Packed modules + acoustic install guide	Per programme	Site logistics plan
8. Handover	Submit as-built + dossier	O&M manual + STC compliance pack	3–5 days	PMC close-out

Acoustic Glass Partition Project Evidence

Project references drawn from Railings India portfolio on case studies and projects. No additional project names introduced.

Project / zone	Sector	Scope	Key specification	Documentation
800-Bed Hospital (Hyderabad)	Healthcare	STC 42 acoustic partitions — 60 consulting rooms	DGU 24 mm, 8 floors, NABH	STC lab report + NABH pack
SEZ IT Park (Bengaluru)	Corporate / SEZ	Acoustic meeting room partitions — 3 towers	STC 38–42, DGU acoustic	STC lab report + shop drawings
Microsoft Campus	Corporate campus	Acoustic glass partition packages — Hyderabad	STC 42, DGU 24 mm	Full PMC submittal pack
IIT Hyderabad	Institutional	Research lab acoustic screens	STC 38–42, DGU 20 mm	IS 2553 + STC report

Outcome — 800-Bed Hospital (Hyderabad): STC 42 acoustic glass partitions across 60 consulting rooms on 8 floors — NABL laboratory test reports and NABH-compatible privacy documentation supplied for accreditation dossier.

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