Technical Data | DPF/RL – Acoustic Barrier for Ducting | HVAC | Products | Siderise

Siderise DPF/RL – Acoustic Barrier for Ducting – Technical Data

Version: 1.10 - Release Date: August 2018

Application

The product is primarily intended to improve the sound transmission loss of lightweight thin sheet structures. It is particularly suited for use as an external cladding to sheet metal ducts. The rockfibre insulation layer is an efficient thermal insulation material, the outer heavy polymeric membrane enhances acoustic performance  and the outer foil faced barrier forms an effective vapour barrier. 
 
The product is used in many varied applications and industries including construction, marine, automotive, HVAC and OEM. 
 
Common applications include:
  • External lining of ductwork and ventilation equipment
  • Concrete columns
  • Generators and compressors
  • Process plant and electrical equipment

Product Description

A flexible and fire resistive resin bonded rockfibre lamella mat with an outer heavy polymeric acoustic membrane, offering excellent durability and sound insulation qualities, that can be used in a wide variety of applications.

Acoustic Performance

The improvement in sound transmission loss for the application of DPF/RL to a light-weight structure is dependent on a number of factors.  
 
These include: 
  • Selected membrane weight 
  • Selected Insulation layer thickness 
  • Surface weight of the original background sheet 
  • Presence of a primary insulation layer 
Our technical department would be pleased to provide indicative performance values against provision of details for a specific condition.  
 
Typical level of improvement in sound reduction performance for the application of a single layer of DPF/RL to a 0.8mm steel duct is:

18dB (mean value for frequency range 100 – 3150 Hz)

Technical Specification

SIDERISE® ‘DPF/RL’ series acoustic barrier

Form supplied (mm) Standard sheet size: 2000mm x 1200mm 
Standard thickness (mm) Insulation layers 25, 40 & 50 
Surface weight (25mm Insulation layer) DPF5/RL – 6 Kg/m2 nominal overall 
 DPF10/RL – 11Kg/m2 nominal overall 
Insulation layer type Resin bonded rockfibre lamella mat 
Insulation layer density 45 Kg/m3 nominal 
Acoustic membrane type Flexible Polymeric Barrier 
Acoustic membrane characteristics Limp Heavy Membrane 
Acoustic membrane thickness DPF5/RL – 2.5mm nominal 
 DPF10/RL – 5mm nominal 
Acoustic membrane surface weight DPF5/RL – 5 Kg/m2nominal 
 DPF10/RL – 10Kg/m2 nominal 
Outer surface finish Standard Class ‘O’ H & V Glass filament reinforced 
 Aluminium Foil Facing 
Fire resistance BS 476, Part 7: Class 1 
 BS 476, Part 6: I12, I(1)6 

Environmental

SIDERISE® ‘DPF/RL’ series acoustic barrier is environmentally friendly. 
  • It contains no Volatile Organic Compounds (VOCs) and no very Volatile Organic Compounds (vVOCs) 
  • Zero Ozone Depleting Potential 
  • Global Warming Potential of less than 5 
  • Recyclable

Additional Information

The following information is available upon request or via download from our website: 
  • 1/3rd octave data for the acoustic membrane available on request 
  • Safety Data Sheet

Technical Support

For further information please contact our Technical Services Team: technical.sspl@siderise.com

Context

The information in this datasheet is believed to be accurate at the date of publication. SIDERISE has a policy of continuous product improvement and reserves the right to alter or amend the specifications of products without prior notice. SIDERISE does not accept responsibility for the consequences of using the products described outside of the recommendations within this datasheet. Expert advice should be sought where there is any doubt about the correct specification or installation of SIDERISE products.

 
SIDERISE GROUP Unit 21-22 Lady Lane Industrial Estate Hadleigh, IP7 6BQ, UK T: +44 (0) 1473 827695 E:hvac@siderise.com www.siderise.com

 
 
Published Version: DPF RL_v1_1_20190812_1629