Applying mastic sealant unevenly or missing interior joints entirely
1st YearSheet Metal Work
Apply mastic with a brush in a continuous, even coat covering the full joint. For interior joints, use a mirror and light to verify coverage before moving…
Safer field move
Apply mastic with a brush in a continuous, even coat covering the full joint. For interior joints, use a mirror and light to verify coverage before moving on.
Ask Foreman
Can you verify this before I keep going? I’m looking at: Applying mastic sealant unevenly or missing interior joints entirely. What’s the approved correction for this job?
Do not
Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.