BOTA - Block Out The Air - Mail Slot Insulator - Installation

I used foam weatherstrip tape with the adhesive backing It's not fully airtight, but much better than previously, and the mail slot still

What I did with my own Tudor style home is pull out the old mail slot, stuffed the cavity with insulation, covered the cavity with a copper sheet using silicone

mail slot in door Energy Efficient, Ideal for All Climates · Internal Brush Strip for Added Insulation and Privacy · New Design for All Thicknesses of Glass, and Even Insulating

mailbox slot insulation, polyethylene sheeting, duct tape, foam gaskets, and tension mail slot in the door, consider installing an outside mailbox and stuffing