Pipe Penetration Sealing
Target Pests (6)
| Common Name | Scientific Name | Category |
|---|---|---|
| German Cockroach | Blattella germanica | Cockroaches |
| American Cockroach | Periplaneta americana | Cockroaches |
| Oriental Cockroach | Blatta orientalis | Cockroaches |
| House Mouse | Mus musculus | Rodents |
| Pharaoh Ant | Monomorium pharaonis | Ants |
| Silverfish | Lepisma saccharina | Occasional Invaders |
Application Method
First stuff gaps around pipes with copper wool or stainless steel mesh (never use steel wool which rusts). Pack material tightly to fill void. For larger gaps, use backer rod before stuffing. Apply appropriate sealant over mesh: silicone or acrylic latex caulk for most applications, expanding foam for larger voids (but not around hot water pipes), concrete patch for foundation penetrations. Install two-piece escutcheon plates around pipes at wall penetrations for clean finish and added barrier. Seal plate edges to wall with caulk.
Timing
Perform during renovations, unit turnovers, or as soon as gaps are identified. Prioritize kitchen and bathroom pipe penetrations.
Frequency
One-time application. Inspect annually for deterioration. Reseal as needed if cracks develop or material shrinks.
Preparation Required
Clean area around pipes. Remove old caulk or deteriorated sealant. Have appropriate materials ready for gap size. Identify pipe type (water, drain, gas) for material selection.
Follow-up Required
Allow sealant to fully cure per manufacturer instructions. Inspect for gaps or shrinkage after curing. Seal additional penetrations found during inspection.
Safety Precautions
- Do not seal around hot water or steam pipes with foam that could melt
- Ensure proper ventilation when using sealants
- Wear gloves when handling copper wool
- Do not block access to shut-off valves