Seal, Insulate, and Reduce Energy Costs
HOW TO SEAL ELECTRICAL PENETRATIONS
Electrical penetrations, like those threading wires through walls and studs, leave lots of room for air to travel through a home. Plus, if there’s ever a fire, these holes help fuel the spread of smoke and flames. Great Stuff™ Fireblock and Great Stuff Pro™ Gaps & Cracks are fireblock rated and fill those gaps, helping to impede the spread of smoke and flames.