FAQ's

Q: What is RHEINZINK?

A: RHEINZINK is an architectural grade zinc alloy, specifically developed for the building industry, comprised of 99.995% pure, high-grade, electrolytic zinc with less than 1% copper and titanium added for malleability and strength.

Q: How is RHEINZINK used?

A:  RHEINZINK is a material that is fabricated into systems for roofing, wall cladding and gutter applications.  It’s also used in interior applications.   

Q: Are there different grades of zinc?

A: Yes.  For zinc cladding of any type (roof, wall and gutter), it is imperative to specify architectural grade zinc; not just "zinc".  The main difference between 'zinc' and architectural grade zinc is performance.  Not all zinc is the same hence it will not perform the same.  Not using an architectural grade zinc can lead to cracking and underperformance.  To learn more about architectural grade zinc, download the ASTM B69-13 documentation.  

Q: Is RHEINZINK safe for the environment?

A:  Absolutely!  Our alloy is certified by the Association for Environmentally Proofed Building Products for the “promotion and the development of environmental and health proofed building products and production processes.”  Click here for more on RHEINZINK and Sustainability.

  • RHEINZINK is safe for the environment and is infinitely recyclable.
  • Recycled zinc conserves 95% of the initial energy content
  • 92-95% recycling rate
  • 40% recycled post-consumer content
  • 30% post-industrial content

Q: Why RHEINZINK vs. another zinc?

A:  RHEINZINK is currently the ONLY manufacturer who derives its surface color from the ALLOY.  What this means: the RHEINZINK PATINA blue-grey and PATINA graphite are two different alloys leading to different colors.  Other zinc manufacturers have the same alloy with a surface treatment to give the appearance only of a different color.

Q: What's importance of two different alloys?

A:  Having two separate alloys means that if the surfaces ever become scratched while used in an outdoor application that the natural weathering process will re-patinate the surface after continued cycles of wetting and drying.  For example: a prePATINA graohite-grey wall becomes scratched.  Since the alloy is different from the blue-grey, the graphite-grey will patinate BACK to its original color.  Paints cannot do this. 

Q: Are there LEED points available for using RHEINZINK?

A:  Yes; check out: RHEINZINK LEED

Q: Does RHEINZINK have third party verifications?

A:  Yes.

ASTM B69-13 for Architectural Rolled Zinc. B69-13 certifies that the alloy is 100% special high grade zinc for:

  • Type 1 - bright rolled and prePATINA blue-grey
    • Type 2 - prePATINA graphite-grey**


    **RHEINZINK is currently the only manufacturer with this designation.

EPD - ECO Product Declaration as per DIN ISO 14025 Type III

Cradle to Cradle (C2C) – Bronze

ISO Certifications for:

  • Manufacturing
  • Products
  • Quality
  • Energy Management

Ecovadis – for sustainable procurement of materials and Corporate Social Responsibility (CSR)

Q: What are some advantages of RHEINZINK?

A:  It is:

  • Non-staining with clear run-off; unlike some metals that stain adjacent surfaces.
  • Non-toxic.
  • Malleable and can be installed on even the most complex geometries.
  • Long-lasting.
  • Complementary to modern and traditional architecture.

Q: Does RHEINZINK offer support?

A:  You bet!  RHEINZINK offers ‘value-added’ support ranging from technical assistance to the architect in the design phase, to pricing assistance for the contractor to hands-on trainings for the fabricator/installers by our own, in-house trainer.  All technical assistance is from RHEINZINK employees with many years of building and zinc experience.

Q: How long does a RHEINZINK facade last?

A:  If installed properly, RHEINZINK has a life expectancy of 150+ years on a wall.

Q: How long does a RHEINZINK roof last?

A:  When properly  installed, a RHEINZINK roof has a life expectancy of 80-100 years.
To learn more about a roof that needed only partial zinc re-roof after 120 years, read about the partial re-roof of St. Catherine’s Church - Reutlingen, Germany.

Q: How long will a RHEINZINK gutter system last?

A:  A RHEINZINK gutter system has a life expectancy of 30 years.  RHEINZINK Gutters.  

Q: How does RHEINZINK last so long?

A:  Zinc protects; it's corrosion resistant and is often used to galvanize other materials - extending their service life.

Q: Does RHEINZINK form a patina over time?

A:  Yes.  Over time, the RHEINZINK surface will form a patina when exposed to continuous wetting and drying cycles. For more information on the patination process, check "Weathering Characteristics" of RHEINZINK

Q: How is RHEINZINK maintained?

A: RHEINZINK is low to no-maintenance; when scratched or scuffed it will heal itself after periods of wetting and drying cycles. The fact that RHEINZINK has two different alloys (blue-grey and graphite-grey) becomes very important in the case of a scratch since the surface color will re-patinate back to its original state.

Q: Where can I buy RHEINZINK Material?

RHEINZINK is available at approved distributor's across North America.  Click here for a complete list.

Q: Why is RHEINZINK an environmentally sustainable Material?

1:  Recyclability

  • RHEINZINK is infinitely recyclable and recycles 100% of its scrap. 


The recycling rate of building construction zinc (European data) is estimated at 96%.  Recycling RHEINZINK requires an energy expenditure of approximately 5% of the primary energy content.   Pre-consumer recycled content is estimated at 30%.  Post-consumer recycled rate ranges from 10%-30%.

2:  Green Manufacturing Process 

  • Deep Mined vs. Strip Mined
  • Emissions during smelting and processing are kept to a minimum through state-of-the-art production equipment


Certifications and Quality Standards

Following a comprehensive evaluation of its entire life cycle – raw material extraction, processing, service and recycling – the independent German Institute Building and Environment e.V. [Institut Bauen und Umwelt e.V.] declared RHEINZINK to be an environmentally compatible building product. In accordance with ISO 14040-3, with EN ISO 9001:2008 certification, and the QUALITY ZINC designation by TÜV Rheinland (test no. 424-030012), all RHEINZINK products meet the highest quality criteria and are subjected to voluntary inspection according to the QUALITY ZINC criteria catalog.  RHEINZINK has received an ASTM standard approval for Rolled Zinc for two alloys.  The designations are ASTM B69-13-Types 1 and 2.  Type 1 is for prePATINA bright rolled and prePATINA blue-grey zinc.  Type 2 is for prePATINA graphite-grey zinc.  RHEINZINK America is currently the only zinc manufacturer with a Type 2 designation.

Q: How is the Energy Balance of RHEINZINK assessed as a Material?

A:  The energy balance of this natural material is favorable. With the lowest level of CO2 pollution during manufacture and thus also the lowest energy consumption during production, RHEINZINK can claim to be the “lite” version among building metals. The amount of energy required is reduced by more than 90% thanks to the level of secondary scrap material from manufacture and the high volumes of zinc scrap in the refined zinc used here (approx. 10%).

Q: Can RHEINZINK be used in a marine environment?

A: Yes!

Q: How is the RHEINZINK Material recycled?

A:  Once dismantled after many years of service, the material can be recycled 100% by scrap metal dealers.  The recycling rate nowadays is already at 90%.  Opting for RHEINZINK, is also highly sustainable from an economic perspective, not merely because energy consumption for recycling accounts for only around 5% of the primary energy content, but also because the scrap metal nowadays returns as much as 60% of the price charged for the raw material.

Q: Why isn't more recycled Material used to produce RHEINZINK?

A:  Due to the long life cycle of RHEINZINK, products manufactured over 30 years ago are still doing service without maintenance. This means that the volume of zinc available for recycling on the scrap metal market is not currently sufficient to increase the levels of secondary material for the manufacture of RHEINZINK.

Q: How large are our Resources of Zinc and in what Sectors is Zinc still used as a Material?

A:  The data today indicates that our resources of zinc will be sufficient to cover our requirements for at least the next 700 years, without even taking the availability of scrap metal into consideration. Zinc is used in many sectors: from the production of car tires and paint, bathroom fittings and hardware for doors to toys and cosmetics. We come across this trace element on a daily basis – whether in shampoo when showering in the morning or in the form of medical products (e.g. zinc ointment).

Q: In what other areas is Zinc used as a Material?

A:  Zinc is used to manufacture car tires, valves and fittings for bathrooms, toys and cosmetic products. Zinc is present throughout the natural environment; in the earth, air and water.  Zinc is essential to all life, a fundamental part of the metabolic processes of plants, animals and humans.

Q: What Foods contain Zinc?

A:  As an essential trace element, zinc can be found in a wide range of food.  A kilo of beef, for example contains 25-50 mg zinc, and a kilo of oats 70-140 mg. Humans need an average of 10-15 mg zinc per day to remain healthy, e.g. for growth, wound healing, to produce enzymes, etc. Pregnant women and nursing mothers are advised to make sure they get up 25 mg of zinc per day. To learn more about the health benefits of zinc, visit the International Zinc Association.

Q: As a Heavy Metal, why is zinc is still safe?

A:  Although zinc is categorized as a heavy metal due to its specific weight of over 5 g/cm³, it is entirely non-toxic.  Forming a natural part of our environment, zinc is the second-most important trace element after iron – a basic part of life. Unlike mercury or cadmium, zinc is not stored by the body, for example when consumed in food.  The amount of zinc not required by the metabolism is excreted naturally.

Downloads
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What is RHEINZINK?
16 MB PDF English 22.09.16
  
Environmental Benefits of RHEINZINK
189 KB PDF English 21.01.16
  
Influences from other building materials
56 KB PDF English 21.01.16
  
Maintenance
33 KB PDF English 12.01.16
  
RHEINZINK Cleaning Recommendations
52 KB PDF English 12.01.16
  
Storage and Handling
43 KB PDF English 03.02.16
  
Weathering Characteristics
195 KB PDF English 03.02.16
  
Technical Bulletin - Tonal Variation of prePATINA
45 KB PDF English 08.04.13


RHEINZINK worldwide

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