Timber knowledge organiser - answers

1. Timbers Knowledge Organiser
Name 3 main types of timber
What is manufactured board?
Forestry Management - Sustainability
What are the features of the 2 different real wood types?
What timber product could be made like this?
What angle are the layers bonded at?
Name 3 types of manufactured board
Urea - Formaldehyde is used as
the bonding agent in which type
of manufactured board?
Name the process?
What do we mean by planed all round
& roughsawn?
Give 3 examples of stock sized
timber
Name thes two main types of process?
What is the process of drying timber called?
What is green timber?
Faults: Why is kiln drying less likely to create faults?
Name these different types of faults?
Felled timber is cut into?
Where might rough sawn timber be used?
Why does product mileage matter?
Explain the effects of illegal logging
What machine is used to fell trees?
What product is produced by this
rotational process?
Compression uses
to create larger boards made from shreds,
chips or pulp.
Why are laminated boards always made with an odd number?
Tree type
Growth
speed
Sustainability
Density
Price
Softwood
Hardwood
Manufactured Board
Chainsaw, Logging Machine
Planks, Boards
Sanded and smooth or un finished and
rough
Outdoors, fences, posts etc
Mouldings Sheets
Dowel
Timber made from gluing chips, layers or particles
Lamination
Plywood
90 degrees
MDF
Chip Board
Hard Board
MDF
Veneer
Heat
Pressure
Adhesives
So the grain matches direcion on both sides
Coniferous Deciduous
Fast Slow
Poor
Good
Less dense Denser
Cheaper Expensive
Trees grow over
40 yrs
Planting seeds
Cut into logs
Transportation
Felling
Fuel
Waste
Building/Use
Sawmill/factory produces
timber & manufactured board
The further the logs have to travel
the greater their carbon footprint
and the greater impace their
production has on the environment.
Illegal logging removes a resource
which plays an important role in
maintaining a healthy atmosphere.
It also has adverse effects on
natural environments leading to
a reduction inbiodiversity.
Seasoning
Kiln drying Air drying
Un-seasoned timber over 50%
moisture
The temp dries the wood quickly
removing more moisture
Bow Crack Crook/Spring Cup Twist