Would Laminated Wood Decay

Laminated root rot also known as yellow ring rot is caused by the fungal pathogen phellinus weirii laminated root rot is one of the most damaging root disease amongst conifers in northwestern america and true firs douglas fir mountain hemlock and western hemlock are highly susceptible to infection with p.

Would laminated wood decay.

And discolorations carefully to determine whether or not they are harmless or in a stage of preliminary or advanced decay. They were first in the genus poria then phellinus briefly in phellinidium and most recently were segregated to a new genus coniferiporia. Laminated columns are stronger lighter and won t warp and twist like solid sawn timbers. Advanced decay is yellow and laminated wood separates at the growth rings with small rounded to somewhat oval pitting on both sides of the laminae.

Wood decay wood rot is decomposition of wood by microorganisms primarily by enzymatic activity. Laminated wood comes in different forms and involves gluing layers of material together. Advanced decay probably provides the best diagnostic features for identification of laminated root rot. Advanced decay is yellow and laminated wood separates at the growth rings with small rounded to somewhat oval pitting on both sides of the laminae.

There are other kinds of deterioration by insects marine animals ultraviolet light etc but this is not decay nor is it quantitatively as important as decay. Advanced decay is laminated and has white mycelium with brownish hairs in it. Laminated wood spars may be substituted for solid rectangular wood spars. Weirii a few species of plants such as western white pine and lodgepole pine are.

There are two closely related species in north america that cause laminated root rot on different hosts. The columns are made by laminating 2x6 and 2x8 1 syp lumber together to make a superior column. Decay will be evidenced by excessive softness or lack of resistance to the probe penetration and the breakage pattern of the splinters. Unlike solid sawn treated timbers laminated columns carry a 40 year warranty against rot decay and termite damage.

Understanding the different types of laminate wood helps you recognize it in your home or when you make purchases. This process is often used in laminate flooring but is also used in some furniture. All pieces must be free from rot dote red heart purple heart and all other forms of decay. Laminated root rot advanced decay velvety layers or sparse whiskery tufts of cinnamon colored fungal filaments called setal hyphae form between the laminae and in the pits.

A brash break indicates decayed wood whereas a crisp splintered break with the splinter hinging from one end indicates sound wood.