wood
DESCRIPTION
Wood. The d efinition of wood is : trunks, branches and roots of trees and bushes without surface contextures (and usually without marrow). Wood. - PowerPoint PPT PresentationTRANSCRIPT
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WOOD
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WOOD The definition of wood is: trunks,
branches and roots of trees and bushes without surface contextures (and usually without marrow).
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MISTAKES AND PESTS OF WOOD Deviations from normal condition or components, that influencie its
use negatively. This includes damage caused by the parasitic organisms ( mold ), insects. The biggest pests are carpenter mushrooms - e.g. dry rot. They interfere cellulose, lignin and cause wood rot, it means that the wood loses strenght and decays.
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TIMBER WOOD The wood is a natural building material, which doesn´t damage the health of
people, and for its excellent features and benefits has an excellent reputation in the construction industry, proven by many generations.
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TYPES OF PRODUCTS MADE OF WOOD
Timber board, square lumber, lumber with half-edges, small lumber
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KINDS OF WOOD USABLE FOR CONSTRUCTION OF ENERGY PLUS HOUSE Norway Spruce
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BASIC INFORMATION ABOUT SPRUCE
Spruces are long-lived, mostly reaching ages of 350 years. It is a large, fast-growing evergreen coniferous tree growing to 35 - 55
m tall and with a trunk diameter of up to 1 -1,5 m. The shoots are orange-brown and glabrous (hairless).
The tallest measured Norway Spruce, 63 m tall, Sutjeska National Park, Bosnia-Herzegovina.
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SILVER FIR
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BASIC INFORMATION ABOUT SILVER FIR In our conditions the silver fir is about 400 - 450 years old. It is a large evergreen coniferous tree growing to 40 – 50 m tall and
with a trunk diameter of up to 1,5 m. The largest measured tree was 68 m tall and had a trunk diameter of 3,8 m. It occurs at altitudes of 300-1,700 m , in mountains with a rainfall per year over 1,000 mm.
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PINE TREE
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BASIC INFORMATION ABOUT PINE TREE Pines are evergreen, coniferous resinous trees growing 3 – 80 m tall,
with the majority of species reaching 15 – 45 m tall. Pines are long-lived, typically reaching ages of 100 – 1,000 years,
some even more. An older tree, unfortunately now cut down, was dated at 4,900 years
old.
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WOOD GLUE Wood glue is adhesive used to tightly bond pieces of wood together.
Many substances have been used as glues.
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CALCULATION OF TIMBER NEEDS
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THANKS FOR YOUR ATTENTION