9 February, 2016
Why wood warps
There are many reasons why a board can be
downgraded. Physiological characteristics
are, for the most part, beyond our control
and most mills have measures in place to
minimize losses from machining problems. The
other significant reason for lumber
downgrade is the presence of warp.
This presentation will deal with all of the
factors contributing to the development of
warp and what can be done to minimize the
Studies conducted at industrial drying sites
have shown that up to 15 per cent of the
boards placed in a kiln develop warp that is
severe enough to cause those pieces to be
downgraded by one or more grade levels.
There are many reasons why a board warps
with some of these reasons be controllable
factors whereas others being beyond our
direct control. Even some of the
non-controllable factors can be managed to
minimize their impact on the final product.
This presentation will deal with identifying
all of the root causes for warp and what can
be done to minimize or eliminate their
impact on mill profitability. A big part of
this process is quantifying the actual
losses and determining the economic impact.
From there, the viability of implementing
the various control measures can be
An objective for every drying operation
should be to fully understand their drying
losses, recognize the available control
measures, and know that they are not leaving
any easily recovered money on the table.
This webinar on degrade losses due to warp
will help you achieve that objective.
There will be approximately 15 minutes at
the end for questions.
And all of this for only $25!
Presenter: Peter Garrahan, Garrahan
Date: February 17, 2016
When: 2 to 3 p.m., EST.