In this study builders and professional repair and remodellers were given a chance to evaluate 12 of the most common home siding products available in the market today. The products were evaluated on seven different attributes: price, maintenance, installation, attractiveness, status/image, fire resistance, and durability. Overall, fire resistance, attractiveness, and maintenance were selected as the most important product attributes by single-family homebuilders and repair & remodellers. The majority of respondents stated that their customers had a strong influence on their final choice of siding materials. In addition respondents were asked for their opinion regarding product popularity, rate of installation, substitution trends, and their choice of siding products for different categories of homes.
This report summarises those issues embodied in building codes and product standards with implications for marketing solid wood siding in Canada and selected other countries. The intention is that technical knowledge gaps can be identified and possibly filled before marketing white spruce siding. Literature searches were done and personal contacts with experts in these countries were made in order to place siding in the context of international codes and standards. However database searches identified only a few documents related to the performance requirements of solid wood cladding products. These issues are discussed under three main headings: material and construction, fire resistance and durability, and weather protection. Apart from fire there is very little reference to solid wood siding in either North American or international building codes. It appears that the long use of the product has effectively been grandfathered in traditional siding application and use. This is, however, not the case for non-solid wood siding where a number of material-specific standards exist which ensure that the products have comparable performance to traditional products or to address performance deficiencies that are specific to that material. Wood siding use in new markets will not be grandfathered in, and there will probably be a need to develop standards and data similar to those for non-wood products.
This Type III environmental declaration is developed according to ISO 21930 and 14025 for average cedar siding products manufactured by the members of the Western Red Cedar Lumber Association. This environmental product declaration
(EPD) reports environmental impacts based on established life cycle impact assessment (LCA) methods. The reported
environmental impacts are estimates, and their level of accuracy may differ for a particular product line and reported
impact. LCAs do not generally address site-specific environmental issues related to resource extraction or toxic effects
of products on human health. Unreported environmental impacts include (but are not limited to) factors attributable
to human health, land use change and habitat destruction. Forest certification systems and government regulations
address some of these issues. The products in this EPD conform to: timber harvesting and silvicultural practices regulation
of British Columbia (BC) and forest certification schemes (Canadian Standards Association, Forest Stewardship Council
(FSC), and Sustainable Forestry initiative (SFI)). EPDs do not report product environmental performance against any
benchmark.
This report examines the issues involved in maximizing the performance of white spruce siding. Background on the factors that affect exterior finish performance is given. The report reviews the various types of exterior finish and makes recommendations for those most suitable for spruce siding. A factory finished and quality assured spruce siding product from Sweden is discussed as a model for maximizing service life of finished siding. Test methods for finish adhesion and durability are summarised and recommendations made. The longest service life will be obtained from edge grain spruce, factory finished with a two coat acrylic latex paint or solid colour stain, preferably with a water repellent preservative and primer underneath.
Depuis quelques années, le revêtement en bois massif a retrouvé ses lettres de noblesse après avoir cédé des parts de marché aux revêtements synthétiques. Ce gain de popularité s’explique notamment par les nombreuses améliorations apportées par les manufacturiers à leur gamme de revêtements, et ce, tant pour ce qui est du moulurage de leurs profilés que de la durabilité de la teinture appliquée en guise de finition, en passant par un rehaussement significatif de la qualité de la fibre utilisée.
A methodology was developed to evaluate the performance of different commercially available siding materials when exposed to high and low radiant heat loads. The materials evaluated in this study were engineered wood, fibre cement board, cedar siding, and vinyl siding. The time to ignition of the wall prototypes was used to evaluate the performance of these materials.
Resin exudation is a common problem in softwood exterior sidings as softwoods are known for the important quantity of resin or pitch that they contain. Resin exudation accelerates the weatherability of siding by forming cracks or blisters. The use of cool color pigments could help reduce the resin exudation on exterior wood sidings as so, it would improve the durability of the products and make the wood more competitive on the market compare to canexel, PVC, etc.
Cool color pigments are characterized by high solar reflectance and thermal infrared (IR) emittance values (Synnefa et al., 2006) and they can help reduce the heat buildup in materials by reflecting some of the solar radiation.
In this project, IR-reflective pigment coating was applied as a primer, and then other coatings were applied as topcoat on PVC and white pine. Color and heat buildup measurements were carried on the two substrates. The results reveal that an IR-reflective primer could be efficient in some cases. In another part of the project, coatings of three different colors were prepared from two set of pigments, conventional ones and IR-reflective pigments. Color measurements, heat buildup measurements, total solar reflectance and resin exudation evaluation were realised on three different substrates (PVC, white pine and black spruce). It was found that IR-reflective pigments lead, for the three colors, to lower heat (IR) absorption.
However, resin exudation experiments were not conclusive.
