Roof painting
If
you are using acrylic paint, which is the most common these
days, don't paint iron if it is cold to touch. Acrylic paint
should not be applied under 10°C. Apart from being an energy
sapping exercise, painting in very hot conditions does not allow
the paint to flow, and dries it out quickly. What’s more, in
most cases, the usage of paint is excessive.
A good 100mm brush is ideal for the valleys and ridges whilst
a roller provides an easier, good quality job when painting the
corrugated iron.
Paint chimneys, valleys and ridges first, then paint the roof
from the ridge to the guttering without stopping down each sheet
of iron.
Ceilings - If using acrylic paint on ceilings, spot
prime all water marks with pigmented sealer.
Rough cast surfaces -
When using acrylic paints for repainting, avoid cracking by
using a woolly roller in preference to a brush.
For new work, dampen the surface prior to application of the
first coat.
Oil based paints - Protect your brush by wrapping it
in plastic food wrap overnight. If you have no plastic food
wrap, immerse your brush in cold water (shake off water prior to
use).
Varnishing - Select a good quality brush. Comb out any
loose bristles by flicking the brush on netting. Wash it in
turps to remove any dust. When applying varnish, do not flood on
- apply it in thin coats.
Sanding down surfaces - Use a flat block and sand
down, following the wood grain. Use a "silicon paper" in between
coats using turps as a lubricant. Wipe off all dust with a rag
or a clean cloth dampened with mineral turps.
Painting suggestions
Ceilings - Paint from window area to the wall opposite. This
way any missed spots can be seen more readily.
Preparation
For best results, good preparation is essential.
Remember
The time and energy you put into preparation is important. A
second top coat of paint will extend the life of your paint job
and give you more of your own time to enjoy.
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