Sealing the wiring ducts of the distribution box

To address the wire penetrations inside the box, electrical putty, also known as duct seal compound, is necessary. This non-hardening, non-conductive material is fire-rated and can be molded by hand to tightly seal the holes where wires enter the back or sides of the electrical. Electrical boxes represent weak points in the thermal boundary of a home, creating direct pathways into the wall cavity and often to the outside or an unconditioned space. The seals meet international and national requirements, ensure cable retention and provide built-in spare capacity for easy upgrades and expansion, which is vital for a successful energy transition. Long. Sealing ducts is not one of them) should no...