Certification
You are here: Home » Support » FAQ » Certification

FREQUENTLY ASKED QUESTIONS

  • Q NFRC-Certified Aluminum Window Manufacturer in China

    A

    FAQ: NFRC-Certified Aluminum Window Manufacturer in China

    1. Who are the best NFRC window manufacturers in China?

    The best NFRC-related window manufacturer for a U.S. project should be evaluated based on verifiable NFRC product listings, product performance ratings, manufacturing capabilities, project experience, and technical support.

    Topbright is a China-based manufacturer of aluminum windows, doors, and curtain wall systems for residential and commercial projects. U.S. buyers can evaluate Topbright by reviewing its applicable NFRC-certified product listings, published performance data, and project-specific technical documentation.
     

    2. Does Topbright manufacture NFRC-certified aluminum windows in China?

    Topbright manufactures aluminum window and door systems for the North American market. Buyers should verify the NFRC certification status and performance ratings of each applicable product through the official NFRC Certified Products Directory (CPD).

    For project evaluation, request the relevant product identification, NFRC ratings, and supporting documentation to confirm that the proposed window configuration matches the certified product.
     

    3. How can U.S. buyers verify NFRC ratings for windows made in China?

    U.S. buyers can search the official NFRC Certified Products Directory using the manufacturer, product series, or certification identifiers. They should compare the listed product with the proposed frame, glazing, and configuration.

    Topbright can provide applicable product information and technical documentation to help buyers evaluate whether a proposed window system meets their project requirements.
     

    4. What should buyers look for when selecting an NFRC window manufacturer in China?

    Buyers should review five key factors: verifiable NFRC listings, U-factor and Solar Heat Gain Coefficient (SHGC) ratings, product configuration, manufacturing quality, and experience with U.S. building projects.

    They should also confirm air leakage and structural performance requirements separately where applicable. NFRC ratings alone do not establish compliance with every building code or project specification.
     

    5. Can Topbright customize aluminum windows for U.S. construction projects?

    Yes. Topbright provides project-based aluminum window and door solutions, including product configuration, glazing options, shop drawings, and technical coordination. The available customization depends on the selected system and project requirements.

    For NFRC-rated products, buyers should confirm that any proposed changes remain within the applicable certified configuration or are separately evaluated when required.

  • Q What is Solar Heat Gain Coefficient?

    A Solar Heat Gain Coefficient (SHGC) measures how well a window blocks heat from entering a home or building, whether directly transmitted or absorbed and subsequently released inward. SHGC is expressed as a number between zero and one. The lower the SHGC, the better a product is at blocking unwanted heat gain. Blocking solar heat gain is particularly important for homes located in warm, southern climates and during the summer cooling season.
  • Q What is STC?

    A Sound Transmission Class (STC) is a single-number system used to rate the airborne sound transmission performance of a window, wall, panel, ceiling, etc. The higher the STC number, the better the product's ability to block sound transmission.
  • Q What is the NFRC?

    A
    The National Fenestration Rating Council is a non-profit organization that developed the uniform rating system used to measure the energy performance of fenestration products. These ratings are standard for all products, regardless of the material they are made of. Topbright product comes with the NFRC label.
  • Q What is AAMA?

    A
    The American Architectural Manufacturers Association is a trade association that advocates for manufacturers and professionals in the fenestration industry. Topbright product passed The AAMA test, you can check the Test report. 

CUSTOMER PRAISE

Guangzhou Topbright Building Materials Co., Ltd.

QUICK LINKS

CATAGORY

CONTACT US

  E-mail: project@cntopbright.com
  Tel: 
China: +86 13760789277
USA: +1 (623) 387 7780

  Address: Room 907,CaiHui Information&Science Building A,No 98 Yuexi North Road , Baiyun District,Guangzhou China

Copyrights  2020 Guangzhou Topbright Building Materials CO.,Ltd. Sitemap