I live in a 16 unit townhouse complex in the Bay Area in California.
The building exterior is a mix of painted stucco, painted wood trim
and stucco stone, with some shingles and a flat roof, done in a
1970's psuedo Tudor style.
The association is starting a project to replace worn out trim and
then paint the trim and stucco. As the trim is coming off we notice
that behind the trim there is clear plastic sheeting protecting the
plywood backing where the chicken wire is attached. The plastic
sheeting is being removed but the contractor is not replacing the
sheeting when new pieces of wood are being put back on. The wood
called out in the proposal to do the job is "S3S Advantage Pine Plus"
and is being screwed on with it primed on all sides.
The proposal also states:
"Remove loose caulking at all of the trim that can be safely accessed
- Re-secure and reseal all of the trim with Sikaflex sealent".
I assume that they intend to keep water from getting to the plywood
backing with the Sikaflex sealant but I'm not sure if this will work.
My understanding of things is that sealant is a caulking that will
keep water and the elements from getting behind the wood trim but I'm
not sure if that can replace the plastic sheeting used for the water
Does anyone know what the code is for this type of job? Is the
plastic sheeting necessary by code? Is it good practice to use
regardless of what type of sealent is being used? Or is it no longer
considered the right thing to do? Also would this type of thing be
covered by local construction codes?
The contractor comes to us highly recommended but I'm concerned he is
not doing the job as well as possible and that we will see water
damage behind the trim eventually without the plastic.