Effect of profiling and preservative treatments on the weathering characteristics of Southern pine deck boards

Akhtari, Maliheh; Nicholas, Darrel D.

doi:10.1007/s00107-014-0844-2

Cited by 8 publications

(8 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite this trend, profiling has only been tested on a handful of North American species including southern pine, blue-stained lodgepole pine (Pinus contorta Dougl. ), subalpine fir (Abies lasiocarpa (Hooker) Nuttall), and white spruce (Picea glauca (Moench) Voss) [12][13][14][15][16][17][18]. Furthermore, the testing that has been carried out has used a limited number of profiles.…”

Section: Discussionmentioning

confidence: 99%

“…However, cupping of profiled deckboards made from some other species is not such a problem. For example, Akhtari and Nicholas found that profiling reduced the cupping of treated southern pine deckboards exposed to artificial accelerated weathering [17]. Profiling has been applied to western red cedar (Thuja plicata Donn ex D. Don) shakes [27] and flat plywood cladding [28], in addition to its more recent use with decking.…”

Section: Discussionmentioning

confidence: 99%

“…The checking of wooden decking can be reduced by adding hydrophobes (wax and/or oil) to the chemical preservatives that are used to treat the decking [8,9], or by applying a water-repellent stain to deckboards [10]. An alternative approach to reducing the checking of deckboards that is attracting increasing attention in North America is to machine small ridges (peaks) and grooves into the surface of boards [11][12][13][14][15][16][17][18]. The dimensions of The H/W ratios of profile peaks are comparable between each of the three profile types ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Manufacture of Profiled Amabilis Fir Deckboards with Reduced Susceptibility to Surface Checking

Cheng

Evans

2018

JMMP

View full text Add to dashboard Cite

Machining grooves and ridges (peaks) into the surface of wooden deckboards reduces undesirable checking that develops when "profiled" boards are exposed to the weather. We aim to develop improved profiles for amabilis fir decking to reduce its susceptibility to checking, and also to examine whether profiling influences distortion (cupping) of deckboards. We systematically varied radii of grooves and peaks, and the heights and widths of peaks in profiled deckboards, exposed them to the weather, and measured checking and cupping of boards. Profiling significantly reduced the numbers and sizes of checks in amabilis fir deckboards, but increased cupping. Profiles with narrow grooves and tall peaks were generally better at restricting checking than profiles with wide grooves and shorter peaks. Our results suggest that one of the profiles we tested would be better at restricting checking than profiles used previously to manufacture profiled decking from amabilis fir. We conclude that the surface checking of profiled amabilis fir decking can be significantly reduced by altering the geometry of surface profiles. In principal, the same approach could be used with other softwood species that have potential to capture a share of the large and important market for wood decking.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Manufacture of Profiled Amabilis Fir Deckboards with Reduced Susceptibility to Surface Checking

Cheng

Evans

2018

JMMP

View full text Add to dashboard Cite

show abstract

“…Profiling makes the surface of wood less slippery [5], and it also reduces the negative effects of weathering checks on the appearance of decking [7]. Recently, there has been interest in North America in optimizing surface profiling to make it more effective at reducing the checking of wooden deck boards made from different species [7][8][9][10][11][12][13][14]. Such interest in profiling stems from the desire to create wooden decking that can match the performance of wood plastic composites, or manufacture decking from species whose susceptibility to surface checking has been an obstacle to their successful exploitation for deck boards [9,15].…”

Section: Introductionmentioning

confidence: 99%

Digital Image Correlation of Strains at Profiled Wood Surfaces Exposed to Wetting and Drying

2018

View full text Add to dashboard Cite

Abstract:We hypothesize that machining grooves and ridges into the surface of radiata pine deck boards will change the pattern of strains that develop when profiled boards are exposed to wetting and drying. Two wavy profiles were tested, and flat unprofiled boards acted as controls. Full-field surface strain data was collected using digital image correlation. Strains varied across the surface of both flat and profiled boards during wetting and drying. Profiling fundamentally changed surface strain patterns; strain maxima and minima developed in the profile ridges and grooves during wetting, respectively, but this pattern of strains reversed during drying. Such a pronounced reversal of strains was not observed when flat boards were exposed to wetting and drying, although there was a shift towards negative strains when flat boards were dried. We conclude that profiling changes surface strain distribution in deck boards exposed to wetting and drying, and causes high strains to develop in the grooves of profiled boards. These findings help explain why checks in profiled deck boards are mainly confined to profile grooves where they are difficult to see, and the commercial success of profiling at reducing the negative effects of checking on the appearance of wood decking.

show abstract

“…Scientific studies have been conducted regarding the performance of native and exotic woods exposed to artificial weathering (Baysal et al 2014, Valverde and Moya 2010, Baar and Gryc 2012, Grüll et al 2014) and natural weathering (Rosu et al 2010, Mattos et al 2013, De Windt et al 2014, Akhtari and Nicholas 2014. Thus, the investigation of woods from fast-growing species with high benefit in the market is important to improve their performance.…”

Section: Introductionmentioning

confidence: 99%

Natural weathering performance of three fast-growing Eucalypt woods

Cademartori

Missio

Mattos

et al. 2015

Maderas, Cienc. tecnol.

View full text Add to dashboard Cite

We investigated the effect of outdoor exposure on the wood surface from three fast-growing Brazilian eucalypts through color, wetting and thermal analyzes. Gympie messmate (Eucalyptus cloeziana), rose gum (Eucalyptus grandis) and blue gum (Eucalyptus saligna) woods were exposed outdoors in a subtropical region for 360 days. We performed three collections every 120 days. We investigated color changes of untreated and weathered woods through a spectrophotometer (CIEL*a*b* system) and changes in macro compounds of wood through thermogravimetric analysis. In addition, the apparent contact angle and work of adhesion were evaluated using a goniometer. Outdoor exposure for 120 days provided significant increment in grayish of wood surface. Thermogravimetric curves of wood changed after the weathering, especially in the regions related to hemicelluloses and lignin thermal degradation. Outdoor exposure for 360 days converted hydrophilic wood surface into a very hydrophilic one, wherein occurrence of microcracks contributed to fully spreading of water droplets.

show abstract

Effect of profiling and preservative treatments on the weathering characteristics of Southern pine deck boards

Cited by 8 publications

References 2 publications

Manufacture of Profiled Amabilis Fir Deckboards with Reduced Susceptibility to Surface Checking

Manufacture of Profiled Amabilis Fir Deckboards with Reduced Susceptibility to Surface Checking

Digital Image Correlation of Strains at Profiled Wood Surfaces Exposed to Wetting and Drying

Natural weathering performance of three fast-growing Eucalypt woods

Contact Info

Product

Resources

About