Sound or acoustic performance of a window is measured by the weighted sound reduction index or Rw value. Rw values are determined by measuring the reduction in dB achieved where a window is used to insulate against a sound source.
The Rw value will increase as the acoustic performance of a window improves, so that a window with an Rw value of 40 has a signi cantly improved acoustic performance over a window with an Rw value of 30. Every improvement in Rw value equates to a reduction in decibels of 1.
Top Quality Guarantee
Alufront ONLY work with reputed manufactures, and highly trained staff to make sure 10 years warranty products for you.
Over 15 years of experience in our field.We understand well and delivery what you need.
Alufront is committed to offering high performance, with international standards for weather protection, acoustics, aesthetics and security.
Custom Solutions supply a wide range of standard shapes for general use. They also offer custom design and development services to a multitude of industries.
Our services include design,documentation,fabrication, loading,export,installation and supervisor.
Wide Products Range
We cover the fields of residential ,commercial,hospitality,prestige houses,retail and school.
We’re so glad to inform you that we have Trade Assurance amount of USD 510,000 which granted by Aliababa.com .It means you will get 100% payment refund up to Trade Assurance Amount if we can’t meet agreed delivery and quality terms contained in the contract. It is a free service for both of us. I think you can place order to us with confidence . For more information about Alibaba.com Trade Assurance ,please find http://tradeassurance.alibaba.com
Welcome to contact us for more details of our products, thanks for choosing ALUFRONT, you will be delighted with our products and service.
Best regards, Alufront Sales Team Skype: alutec020 whatsapp:18925167558 wechat:18925167558 Cell :86-18925167558 (Michelle Wang)