Why Cedar for Wooden Gazebos?
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Why Cedar?

Western Red Cedar is one of the world’s most durable woods. Although it tends to be more expensive than tanalised (chemically treated) European Redwood or Douglas Fir, the natural resistance to moisture, decay and insect damage has long made Western Red Cedar the premier choice for outdoor furniture, hot tubs and saunas. Cedar fibers in the heartwood contain natural preservatives that are toxic to decay-causing fungi.

Western Red Cedar is one of the few wood species that are naturally at home in the outdoors. Properly finished, Western Red Cedar will last for decades, even in the harshest environments. Its natural resistance to moisture, decay and insect damage make it the ideal choice for a surface that is exposed to sun, rain, heat and cold all year.

All of our Western Red Cedar has been carefully selected from well managed and certified forests in North America. Completely renewable and biodegradable, cedar does not require chemical treatment due to its unique naturally occurring preservatives, resistant to rot and insects.

As with all outdoor wooden furniture, whether it is made from Oak, Teak or Cedar, we strongly suggest you care for your furniture by applying our recommended preserver once a year.

Crown Pavilions has worked closely with an established UK manufacturer of complex wood preservatives and oils in developing a range of unrivalled wood preservers which will add to the beauty of your Pavilion as well as enhancing its long life. Our Crown Cedar Oil is the recommended product for all of our Cedar outdoor furniture.

Western Red Cedar determined most sustainable building material

New Study Shows Wood Can Improve Environmental Footprint When Used For Decking and Siding

VANCOUVER, BC – January 20, 2010 – Western Red Cedar, already lauded for its durability, beauty and value, can now add most environmentally sound siding and decking material to its attributes, according to a newly released life cycle assessment (LCA).

Measured against competitive, alternative non-wood building materials for residential decking and siding applications, the LCA performed by Canada’s leading forestry research laboratory, FPInnovations-Forintek, measured the environmental impact of various materials from cradle to grave. The LCA was commissioned by the Western Red Cedar Lumber Association. Complex analysis was conducted on Western Red Cedar, WPC decking, brick, fiber-cement and vinyl against a range of measurables such as resource use, water use, energy use, transportation and waste created. Western Red Cedar substantially outperformed in every category.

“As green building regulations become the standard in building, consumers who previously favoured more ‘maintenance-free’ materials as their siding and decking products of choice will need to consider alternatives such as Western Red Cedar to help lessen their environmental footprint,” said John Wagner, a nationally recognized green and sustainability consultant. “Knowing that the LCA proved alternative building materials like WPC decking, brick, fiber‐cement, and vinyl create more environmental burden and consume more non‐renewable fossil fuel during their life cycles, helps me feel confident in recommending Western Red Cedar as the most sustainable building tool for my clients and consumers everywhere.”

LCA test results proved

  • Western Red Cedar decking had by far the least environmental impact when compared with both virgin and recycled wood-plastic composite decking products.
  • Environmental impact results remained strongly favorable to Western Red Cedar decking even when comparing a “worst case” scenario to a “best case” scenario for composite decking.
  • Western Red Cedar siding performed best overall in comparison with vinyl, fiber-cement and brick.

In order to evaluate the environmental impacts of the life cycle stages of siding and decking material alternatives, the life cycle study was modeled as four distinct life cycle stages: resource extraction and manufacturing (cradle-to‐gate manufacturing), transportation to customer, installation and use, and end‐of‐life disposition (land-filling). Products were measured and evaluated against six criteria that include information about the environmental impacts associated with a product or service, such as raw material acquisition, energy use, carbon footprint, emissions to air, soil and water, and waste generation.

“Western Red Cedar has been the leading building product among builders and designers for decades based on its known three key strengths of durability, beauty and value,” said Jack Draper, managing director, Western Red Cedar Lumber Association. “Now there’s a fourth dimension. Consumers like it because it is a natural wood product, authentically sustainable and truly green. This study validates that assertion.”

To find out more information on using Western Red Cedar as a sustainable building tool, or to speak to an industry expert, please visit: www.wrcla.org.

About Western Red Cedar Lumber Association

Western Red Cedar Lumber Association (WRCLA) is a Vancouver, B.C. based non-profit association known as “the voice of the cedar industry.” Founded in 1954, the association operates architect advisory and technical service programs throughout the U.S. and Canada. It seeks to inspire, inform and instruct architects and consumers about Western Red Cedar, its uses and benefits.

Western Red Cedar is one of nature’s truly remarkable building materials. Not only does it have distinctive beauty, natural durability and centuries of proven performance, Western Red Cedar is the ultimate green product. It produces fewer greenhouse gases, generates less water and air pollution, requires less energy to produce than alternatives and comes from a renewable and sustainable resource. Equally important, Western Red Cedar is carbon neutral. For more information please visit, www.wrcla.org.

Third-party study proves Western Red Cedar is the most environmentally friendly choice for siding and decking

Overview of LCA and why it is important

Consumers of building materials, whether professional architects, engineers and specifiers, or home owners, are increasingly concerned about their environmental “footprint.” They are particular about products they choose and factor environmental considerations into the decision-making process.

Unfortunately, getting the “whole picture” about a product’s environmental impact can be challenging. Most manufacturers only promote a selective criterion of attributes. Sure, a product may be biodegradable or contain recycled content. However, this does not address other key considerations like energy consumed in manufacture, emissions and impact on global warming. Accessing and comparing like information about alternative products is another challenge.

A Life Cycle Assessment or LCA (also known as life cycle analysis, ecobalance, and cradle-to-grave analysis) quantifies environmental impacts of materials in a side-by-side comparison. LCA measures cradle-to-grave environmental impact through complex analysis of a range of measurables such as resource, water and energy use, emissions, transportation, and waste created. Extraction, manufacture, transportation, consumption or use, and end-of-life disposal practices are examined to create a scorecard against which objective comparisons can be made. Testing is done on a third-party basis, providing consumers reliable data.

Overview of this study

Western Red Cedar Lumber Association (WRCLA) members determined commissioning a third-party LCA of siding and decking products was the only credible way to provide consumers with reliable environmental performance information. To place the study results in sharper perspective, a parallel study of alternative products including brick and fiber cement siding as well as composite decking products was also commissioned.

Forintek, Canada’s leading forest products research organization, conducted the study in accordance with international standards in the ISO 14040/44 series, which requires that all products be treated equally and be of similar quality. Study results were presented for peer review to independent third-party organizations to ensure ISO standards compliance.

For Western Red Cedar products, the study was based on data obtained from a representative cross section of cedar mills in British Columbia and Washington state in 2007. Secondary publicly available data was used to develop life cycle inventories (LCIs) for clay brick, fiber cement and vinyl siding. Cradle-to-grave LCIs for wood-plastic composite decking made with either virgin or reprocessed plastic were also developed using secondary data sources as well as information collected from experts in the petrochemical and wood-plastic composite fields.

In order to evaluate the environmental impacts of the life-cycle stages of product alternatives, the life cycle was modeled as four distinct life-cycle stages: resource extraction and manufacturing, transportation to customer, installation and use, and end-of-life disposition. This approach helps identify where environmental contributions occur within the life cycle of each product system.

Summary of decking and siding findings

The following statements and graphs summarize the LCA results of the study for decking and siding products, giving consumers a reliable basis for comparison. Environmental impact measures applied consistently to each product were: total primary energy on a cumulative demand basis, global warming potential, acidification potential, aquatic eutrophication potential, ozone depletion, smog formation potential, and human particulate (respiratory) effects.

  • Western Red Cedar decking substantially outperformed composite decking in each of the seven criteria tested and was by far the product with the least environmental impact when compared with both virgin and recycled wood-plastic composite decking products.
  • Even after subjecting the cedar decking results to a “worst case” scenario in which Western Red Cedar required the replacement of 20% of boards in normal service and periodic application of coatings, the environmental impact results remained strongly favorable to Western Red Cedar over a “best case” scenario for composite decking.
  • Western Red Cedar siding had the best overall performance when compared to vinyl, fiber-cement and brick; it received top marks in five of seven impact criteria, including “global warming potential.”
  • Total life energy of Western Red Cedar siding can be further improved by altering end-of-life disposal practices away from the assumed practice of 100% landfill, to a mix of reuse, energy recovery and landfilling. This practice, already reality in many communities, results in cedar siding becoming a net “carbon sink;” other products tested remained green house gas contributors.
  • Cedar siding impact on smog and eutrophication – the criteria in which it was not the leader – can be traced directly to the use of paint, not the natural characteristics of cedar. Use of high quality paints and stains (some of which carry length performance warranties) or the use of the new water borne coatings would have a very positive impact on results.

LCIA comparison of decking products**

Real Cedar

LCIA comparison of siding products

Real Cedar

**(Please note, In each set of bars, the product with the highest impact in that category is the benchmark (100%) and the other products are shown as a percentage relative to the benchmark. These are percentage values against a benchmark and not absolute values.)


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