Quartz countertops have become increasingly popular in recent years due to their durability, aesthetic appeal, and eco-friendly credentials. But how green are quartz countertops really? Let’s take a closer look.
What is Quartz?
Quartz is a engineered stone made from natural quartz crystals bonded with resins and pigments. The exact composition varies by brand, but a typical quartz slab contains:
- 90-94% crushed quartz
- 6-10% polymer resins
- Pigments for color
Quartz is hard and non-porous, making it very durable and stain resistant. It’s also available in a wide range of colors and patterns to suit any design style.
The Manufacturing Process
The manufacturing process starts with obtaining quartz crystals from quarries. The crystals are crushed into a fine powder, then combined with resins, pigments, and other materials under intense heat and pressure. This forms a solid slab that is cooled, polished, and prepared for shipping.
Compared to other countertop materials like granite and marble that are mined in large blocks then cut, quartz is more efficient since it makes use of finely crushed quartz fragments. Less material is wasted in the quartz manufacturing process.
What Makes Quartz an Eco-Friendly Choice?
Here are some of the factors that make quartz a green countertop option:
Contains abundant natural material
Since quartz surfaces contain over 90% finely crushed quartz, it makes use of a very abundant natural material that would otherwise go to waste. Quartz is extremely common in nature.
Requires less mining
The manufacturing process uses crushed quartz fragments rather than large quartz slabs. Specialized mining of giant quartz blocks is not required. Less invasive mining benefits the environment.
Low carbon footprint material
The resins used in quartz surfaces are modern polymers with fewer impurities than other binders like cement. This gives quartz a lower carbon footprint compared to concrete-based surfaces.
Durable and long-lasting
With strength and scratch resistance exceeding granite, quartz countertops can last for decades with proper care. Their long lifespan keeps quartz out of landfills.
Contains recycled content
Some quartz contains up to 20-30% recycled glass, metals, mirrors or porcelain. This gives a second life to materials that would otherwise be discarded.
Does not require sealing
Unlike granite or marble, quartz does not need periodic sealing to prevent staining. This saves energy and supplies over the life of the countertop.
Easy to clean
Simple cleaning with soap and water is all that is needed to keep quartz clean. No need for chemical cleaners that can impact the environment.
National Sanitation Foundation (NSF) certified
Quartz has been certified as a safe and sanitary surface for food preparation by NSF International. This gives peace of mind.
Low VOC emissions
Quartz emits negligible VOCs, or volatile organic compounds. VOCs can be irritating and are best minimized.
Can be recycled
Pre-consumer and post-consumer recycled quartz is used by some manufacturers. Quartz can also be crushed and recycled after its useful life.
Are There Any Downsides to Quartz?
While quartz has many sustainability advantages, a few concerns have been raised:
- Resin content – Some environmental groups argue the polymers degrade more slowly than a natural stone surface. The resin content is relatively low compared to the quartz content though.
- Energy intensive manufacturing – There is significant energy used in crushing the quartz and forming the slabs under intense heat and pressure. Manufacturers continue to refine processes to improve efficiency.
- Limited color options – The color palette of quartz is not quite as extensive as materials like granite due to the pigments used. However, many pleasing neutral, white, and gray options are available.
- Not locally sourced – Most quartz is manufactured in Asia which leads to further shipping and energy use. Some local options are emerging though.
Is Quartz Ultimately a Green Choice?
While no material is perfect, quartz does appear to be one of the greener options for countertops when all factors are weighed. The high recycled content, durability, low maintenance, and aesthetics make quartz a versatile choice as we move to more sustainable building practices.
How to Care for Your Quartz Countertops
Caring properly for your quartz will allow you to enjoy it for decades to come. Here are some tips:
- Clean with mild soap and water regularly
- Avoid exposing to strong chemicals
- Use cutting boards and trivets for hot pots/pans
- Don’t use cleaners containing acid or ammonia
- Blot spills quickly to avoid staining
- Have countertops re-polished and sealed every few years
With simple care, quartz countertops will retain their beauty and function while minimizing environmental impact. Their durability, low maintenance, and green attributes make quartz a smart investment for eco-conscious homeowners.
Frequently Asked Questions about Quartz Countertops
Is quartz more environmentally friendly than granite?
Yes, quartz is generally considered a greener choice compared to granite. Quartz contains abundant natural quartz particles that would otherwise go to waste, has high recycled content, and does not require invasive mining processes.
Can you get quartz made from recycled materials?
Many major quartz brands offer options containing recycled glass, porcelain, mirror fragments, and other materials. This gives a second life to items destined for landfills. Look for details on recycled content when selecting a color.
Does quartz have VOC emissions?
Quartz has very minimal VOC emissions. VOCs (volatile organic compounds) can cause irritation and reduce indoor air quality. The polymers used in quartz fabrication result in negligible VOC off-gassing.
Is quartz sustainable?
Quartz is considered one of the more sustainable countertop options. It makes use of abundant natural quartz crystals that would otherwise go unused. The manufacturing process also continues to implement energy and material efficiencies to improve sustainability.
Is quartz cheaper than granite?
In most cases, quartz is moderately priced higher than granite. The average installed price of quartz is $80-100 per square foot, while granite averages $50-80 per square foot installed. The price varies quite a bit though depending on the stone grade, finish, and manufacturer.
Conclusion
Based on its durable composition, low maintenance needs, aesthetics, and manufacturing advantages, quartz presents a eco-friendly alternative to other natural stone and concrete surfaces. While no material is perfect, quartz counters the environmental downsides by making use of recycled content, natural quartz particles, and engineering enhancements. With proper selection and care, quartz countertops provide an attractive green option for kitchen and bath remodeling projects.