Stucco ConstructionTerms
Stucco Construction Term Scratch Coat is the first coat of
stucco to be applied. This coat is applied over the metal lathe
and allowed to set up a little. A stucco scratch coat rake is
used to create grooves in the stucco so the next coat will have
bond better to the first coat.
Stucco Construction Term Paperback Lathe is a product
used to strengthen the stucco and create a bonding surface.
The paper is a felt paper type paper which serves as a moisture
barrier for the stucco. The metal lathe is a diamond shaped
galvanized metal product. The paper back lathe is installed with
galvanized screws or nails, depending on the backing.
Stucco Construction Term Brown Coat is the second coat
applied in the application of a real stucco system. Normally the
first coat called the scratch coat will be sprayed with water
before the brown coat is applied. Each coat should a certain of
days for curing before the next coat is applied. The brown coat
will be applied and troweled smooth before it dries.
Stucco Construction Term Expansion Joint is a PVC plastic
that is applied to the wall at particular locations that are
normally going to produce a crack. Usually stucco will produce a
hair line crack at outside corners of window and door frames.
There will normally be a crack where to dissimilar materials
meet. To try to prevent these cracks, an expansion joint is
installed to the wall.
Stucco Construction Term Bottom Screed is a PVC plastic
that is applied first at the bottom of the wall before the paper
back lathe is applied. The paper is lapped over the flange of the
screed. One type of stucco screed that might be used is a drip
screed. This product has holes in the bottom flange to allow any
water that might penetrate the stucco to drip out. The bottom
screed serves as a screed for the stucco depending on the
thickness and also serves as a stopping point or cap at the
bottom.
Category Construction Glossary