Work must be
done by experienced people.
This should say enough. If you are a DIY it means that
you should be ready to accept the consequences,
including bad work, or the fact your
time is only worth $3.00 per hour. I understand the
frustration of homeowners or contractors when people
don't show up or do what they
are supposed to do. Also, there is a severe shortage of
qualified plasterers, but still it is worth the wait for
quality.
Other reasons for excessive cracking:
Finish coat cracking:
Too much lime in the
finish coat, mortar too rich in the finish,
sand too fine.
Most cracks only occur in the finish
coat. These superficial cracks
may not be a danger of water infiltration, they can be
avoided.
Lack of bond:
This is a source of larger
deeper cracks, and loose areas.
Frequent causes:
Finish coat doesn't bond when
resurfacing.
Brown coat too slick.
Bonding agent failure.
Inexperience.
Excessive cracking in the
brown coat:
Sand in the
brown coat too dirty or too fine.
Sand should be a yellow color and not too
fine.
A red or brown color indicates too much red
clay or dirt in the
sand.
Thanks so much to Paul and Melissa from Louisiana to
put
all the points into one downloadable .doc file. To
download all,
please
click here.
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