Is Outside Pvc Trim Safe For The Environment?

PVC, a popular high-performance material for exterior structures, is unsustainable due to its use of toxic chemicals like chlorine and dioxin. Greenpeace states that natural rubber/latex was once the go-to material for exterior structures, such as decking, siding, and trim. However, PVC trim is not an eco-friendly material as it is made from a type of plastic that is difficult to produce and emits harmful VOCs during manufacturing and installation.

PVC trim offers a practical solution for homeowners looking for durability without constant maintenance. This synthetic material is impervious to rot and insects, making it more environmentally friendly than wood. According to the Building Research Establishment, PVC products can provide service for up to 35 years. PVC trims promote recycling without contributing to deforestation, unlike wood trim production which involves tree cutting and contributes to environmental degradation.

Eastern White Pine, engineered to look like wood, is also long-lasting and impervious to rot and insects. While some builders try to pass PVC off as “green” due to its durability, it is not entirely sustainable. PVC trims are more eco-friendly by promoting recycling without contributing to deforestation.

PVC trim is good for the environment by reducing the amount of raw materials used to make new PVC and reducing waste. Although the manufacturing process is mildly toxic, PVC trim earns LEED points, a green-building rating system created by the U.S. Green Building Council. Given that wood trim rots out quickly due to the environment and exposure, PVC is a good alternative.

What is the longest lasting exterior trim?

Rot-resistant woods like redwood, red cedar, Alaskan yellow cedar, and Port Orford cedar have been the primary choice for exterior trim since the late 20th century. These woods are durable, easy to work with, and fasten and paint well. However, they are soft and can dent easily. The dust and oils in these woods are toxic to those who cut and sand them, and their cost has increased due to a dwindling stock of old-growth trees.

There are alternatives to these woods, such as cypress, white oak, or locust, which offer nearly the same rot resistance as redwood but are harder and more dent-resistant. These woods are cut from a dwindling stock of old-growth trees and are priced out of most high-end jobs. Choosing the right wood for your project depends on your location and preferences.

What is the downside of PVC trim?

Cellular PVC trim is popular among builders due to its lightweight, durable, and waterproof properties. However, it does not move due to moisture like wood, but rather due to temperature. PVC trim grows and shrinks along its length, which can cause noticeable shrinkage and break glue joints. If installed in mild weather, it may shrink when cold and expand when hot, but gaps can open up when temperatures drop to zero in January. To prevent this, use planned movement joints to ensure movement occurs where it should occur.

Nail the trim securely to a solid substrate in visible locations, glue the joints that need to be kept closed, and provide unglued movement joints in less noticeable spots, such as masked behind a corner board.

Is PVC Environmental friendly?

PVC is a highly toxic and environmentally damaging plastic, releasing toxic chemicals throughout its lifecycle. These toxins accumulate in water, air, and food chains, leading to severe health issues such as cancer, immune system damage, and hormone disruption. PVC is known as poly(-1-chloroethylene) and has a linear, atactic structure with a degree of polymerization ranging from 500 to 1500. It is white in color and resistant to impact, chemicals, corrosion, water, and weather conditions.

PVC is synthesized through free-radical polymerization via the head-to-tail tri-stage mechanism, resulting in a theoretical molecular weight range of 31, 000-94, 000 g/mol (Da). Everyone has measurable levels of chlorinated compounds in their bodies.

What is the best material for exterior trim?

Wood trim is a popular choice for homeowners due to its natural beauty and versatility. However, it is susceptible to environmental damage, such as rot, warping, and insect infestation, which requires regular maintenance. PVC trim is a low-maintenance alternative, as it is impervious to rot, moisture, and insect damage. Its easy-to-clean surface and absence of painting or staining reduce upkeep efforts. However, some may find its appearance less appealing than natural wood, and its reaction to extreme temperature changes can pose challenges in fit and finish over time.

Fiber cement trim combines the benefits of durability and aesthetics, withstanding rot, termites, and fire, offering an impressive lifespan. It can mimic the look of wood, providing a low-maintenance option without sacrificing style. However, its weight and brittleness require professional installation and may require periodic painting to maintain its appearance. Overall, wood and fiber cement offer different options for homeowners looking to enhance their home’s exteriors.

Is PVC exterior trim better than wood?

PVC is a durable material that is resistant to water and rot, in contrast to wood, which is subject to natural degradation over time.

What are the disadvantages of PVC?

PVC, a widely used and versatile material, is not biodegradable and can release harmful chemicals when incinerated. The plasticizers used in soft PVC can release toxic fumes, posing health risks and developmental problems. Recycling is challenging due to the complex nature of PVC, which can release harmful chemicals into the environment. PVC also poses fire risks due to the release of toxic gases when burned. Despite its versatility, durability, and cost, PVC coated fabrics pose serious health and environmental issues.

To address these concerns, companies are developing more sustainable fabrics, such as Rivercyclon®, which is a revolutionary range of non-toxic, lightweight, heat-sealable, and 100 recyclable coated fabrics. By replacing PVC coated fabrics with Rivercyclon®, reliance on non-renewable resources and pollution can be significantly reduced.

Does PVC go bad in the sun?

PVC pipes and fittings exposed to sunlight for two years or more will experience decreased impact strength and resistance. However, these qualities are not typically associated with PVC. Exposure to UV sunlight for two years or less does not affect the PVC’s stiffness, pressure capacity, strength, or modulus. For periods longer than two years, there can be minimal effects. Thinner pipes generally have more UV rays affecting their strength or flexibility.

Indications of UV exposure on PVC pipes or fittings begin with slight discoloration, especially if laid above ground. To prevent discoloration and long-term negative effects, use UV-resistant fittings (PVC UVR Fittings) with a titanium dioxide additive, which reduces UV light discoloration of PVC polymers. Alternatively, paint or coat the PVC pipe or fitting to prevent negative effects from UV light. However, allow ventilation when covering the PVC for storage purposes, as heat can cause more damage than UV light.

What is the life expectancy of PVC trim?

PVC trim is a durable and cost-effective option for homeowners seeking a high-quality, long-lasting exterior trim. Its superior quality, increased durability, UV- and moisture resistance, insect resistance, flame retardance, no need for painting or staining, low maintenance, affordable visual impact, and unlimited customization make it a top choice for homeowners seeking a cost-effective and visually appealing option.

Is PVC safe for outside?

PVC and CPVC piping products are suitable for outdoor applications when properly adapted. However, they must be protected from freezing due to colder temperatures. Standard cold-weather piping design and installation practices, such as pipe insulation, antifreeze solutions, and heat tracing tapes, can help. Manufacturers should consult for compatibility before use.

Harvel recommends using light-colored acrylic or latex paint that is chemically compatible with PVC/CPVC products, as oil-based paints are not recommended. This will reduce the effects of sunlight exposure and heat absorption in outdoor applications. Proper support selection and spacing are crucial to prevent stress concentration, bending stress, thermal expansion/contraction effects, and pipe displacement. Proper pipe support spacing depends on pipe size, concentrated weight loads, and operating temperatures.

Temperature increases require additional support, and continuous support via a structural angle or channel may be more economical. Local building codes should also be consulted for applicable requirements before installation.

Is PVC trim environmentally friendly?

PVC trim is not an eco-friendly material due to its production process and release of harmful VOCs during and after installation. While recycling is possible, most recycling plants do not accept it, making it likely to end up in landfills. Additionally, homeowners often leave PVC trim in its natural white state to avoid peeling paint, but this can lead to the nail holes turning yellow over time. This yellowing detracts from the trim’s appearance, as the vinyl spackle used to cover the nail holes is likely to turn yellow over time. Therefore, it is essential to consider the environmental impact of PVC trim before purchasing.

Is PVC good for exterior trim?

PVC trim and decking is a durable and low-maintenance material made of polyvinyl chloride plastic, offering moisture resistance, increased performance, and low maintenance. It is suitable for exterior applications such as fascia, window trim, skirt boards, corner boards, column wraps, and stair risers. PVC comes in various colors and textures, and can be heat bent into any shape. Although more expensive than other wood species, its longevity and low maintenance make it a cost-effective choice. It can also be painted to match your home’s style, making it an ideal choice for creative designs.