Brief Description:Rock wool board for elevator shaft is A1 non-combustible basalt fibre panel for elevator hoistway noise control. It provides great low-frequency sound absorption, anti-sagging and moisture resistance. It reduces elevator roar and resonance noise in residential and commercial buildings. Factory direct supply with complete test reports for tender and project acceptance.

Haochen Rock‑wool Board for Elevator Shaft is a professional acoustic and noise‑reduction insulation material specially engineered for elevator hoistways in residential towers, commercial complexes and office buildings. Produced with high‑elasticity porous basalt fibre formulation and high‑pressure curing technology, it effectively attenuates operational roar, structural resonance and shaft reverberation generated during elevator running cycles. Integrating Class‑A fire resistance, high‑efficiency sound absorption, structural sound insulation and durable moisture‑proof thermal performance, it outperforms conventional acoustic cotton and low‑grade loose filling materials. The product is widely specified as the standard acoustic insulation solution for modern elevator hoistway projects.

Elevator hoistways in high‑rise buildings form fully enclosed vertical shaft structures. Reciprocating elevator movement easily generates superimposed noise and amplified internal echo, which penetrates partition walls and causes indoor noise disturbance. Hoistway noise control has become a critical assessment indicator for residential project inspection and acceptance. Traditional filling materials suffer from weak acoustic attenuation, insufficient fire resistance and moisture‑induced sagging, failing to satisfy the dual requirements of building fire safety and indoor noise reduction. Haochen Rock‑wool Board for Elevator Shaft comprehensively resolves common onsite defects, including excessive shaft noise, inadequate sound insulation, non‑compliant fire performance and long‑term performance degradation caused by material settlement and deformation.

1. Elevator Hoistway Noise Reduction Principle

The rock‑wool board adopts a three‑dimensional interlaced fibre structure with fine, uniform and interconnected internal pores, delivering reliable sound energy dissipation capability. When low‑to‑medium frequency mechanical vibration noise, airflow wind noise and operational equipment noise enter the board structure, sound energy is effectively consumed through internal fibre friction and air damping. This significantly suppresses shaft echo and internal sound reflection, blocks noise transmission through external walls and interior rooms, and fundamentally reduces elevator‑related indoor noise disturbance.

2. Core Product Engineering Advantages

2.1 Class‑A Fire Resistance Compliant with Vertical Shaft Fire Codes

Elevator hoistways are classified as critical vertical fire shafts with stringent fire‑protection requirements for infill materials. This Class A1 non‑combustible inorganic material inhibits flame propagation and produces no harmful toxic fumes during fire exposure. It fully meets fire containment and acceptance standards for high‑rise elevator shafts, applicable to new construction and renovation projects for both residential and commercial buildings.

2.2 Professional Hoistway Acoustic Performance, Superior to Ordinary Acoustic Cotton

Compared with conventional elevator acoustic cotton, Haochen rock‑wool board features denser fibre distribution, higher structural stability and lower fibre shedding. It provides targeted absorption of elevator‑specific low‑frequency noise, greatly reducing cross‑floor operational roar and nighttime resonant noise, and fully meets acoustic acceptance standards for residential building projects.

2.3 High Structural Rigidity, Anti‑sagging and Anti‑deformation

Conventional soft acoustic cotton gradually settles, sheds fibres and forms hollow voids under long‑term vertical gravity load, resulting in continuous acoustic performance decline. Haochen elevator shaft rock‑wool board is integrally cured with high structural rigidity and stable overall structure. After vertical cavity filling, the board remains intact without loosening, sagging or deformation, maintaining consistent noise‑reduction performance throughout the building service life.

2.4 Excellent Moisture Resistance for Poorly Ventilated Shaft Conditions

Elevator hoistways are typically poorly ventilated, humid and prone to condensation accumulation. Traditional acoustic and thermal insulation materials easily absorb moisture, develop mould and suffer performance failure. This product features superior hydrophobic performance, effectively resisting water absorption, pulverisation and mould growth, ensuring stable long‑term performance in dark and humid shaft environments.

2.5 Low Fibre Emission, Clean and Efficient Installation

The tightly cured compact fibre structure greatly reduces flying fibres during cutting and onsite processing, enabling clean and standardised construction. The board can be precisely fitted into hoistway wall cavities, keel gaps and back panel voids, fully matching standard operational procedures for elevator shaft acoustic treatment.

3. Application Scenarios

Elevator hoistway noise reduction and wall cavity filling for residential communities

Fire and acoustic insulation upgrading for elevators in apartments, office buildings and commercial complexes

Noise control renovation and retrofitting for elevator shafts in old residential projects

Integrated acoustic, fire‑proof and thermal insulation construction for building vertical shafts and mechanical equipment shafts

4. Common Engineering Specifications

Common Density: 60 kg/m³, 80 kg/m³, 100 kg/m³, 120 kg/m³ (100 kg/m³ and 120 kg/m³ are mainstream grades for elevator hoistway noise reduction)

Common Thickness: 50 mm, 75 mm, 80 mm, 100 mm, custom non‑standard thicknesses available

Standard Size: 1200×600 mm, custom non‑standard sizes available upon request

5. Professional Engineering Support

Haochen Rock‑wool Board for Elevator Shaft is strictly manufactured in accordance with national and international standards for building shaft noise control and fire protection. Featuring stable sound absorption coefficients, reliable structural integrity and qualified fire‑test performance, the product delivers excellent adaptability for various engineering scenarios. Factory direct supply with complete qualification documents and test reports, supporting project review, bidding submission and final acceptance. It is a highly recognised dedicated acoustic and fire‑proof insulation material for modern M&E and noise‑control construction projects.