p1-wood enhancments Flashcards
resins and laminations
-used in engineered wood
-chipboard is made from compressing wood chips with resin
-chipboard is stable not
affected by humidity and temperature
resins with fire retardants
resin is impregnated with fire-retardant cladding
laminations
veneers such as natural wood are laminated on to the board surface to enhance aesthetic
preservatives
-protects wood from fungal and insect attack
- wood can be pre treated with a copper-based preservatives
pigments
add to the preservatives to give different coloured shades to enhance aesthetics
fire-retardant preservatives
- used to pressure treat wood for roof joists, cladding
modified natural polysaccharide
wood is impregnated to cure within wood cell structure increases hardness, toughness, stability
SCL and LVL
SCL- made by layering strands
LVL- of wood with resins such as UF
SCL and LVL are less prone to defects such as warping, splinting, or shrinking