Pestplug has many uses…here are a few applications shared by our customers and other uses to keep rodents and insects out! [ninja_tables id="797"] APPLICATIONS:Any hole as small as 1/4″ in diameter could be an entry point for a mouse or other small creature.Weep holes Gaps around pipes passing through walls.Outside Electrical conduit that will allow rats or mice to enter and burrow inside and eventually they chew away at the electrical insulation.Gaps & Cracks between foundation and sill plates, gaps between prefab concrete walls, framing in homes, barns, farm silos and metal buildings.