Q: If I install a pet door, will I get a lot of air intrusion into the house?
A: Today’s pet doors have spring-loaded, flexible flap doors with strong magnets that close and seal the door from weather. Some pet doors even utilize an RFID (radio-frequency identification) tag in the pet’s collar. As the pet approaches the door, the RFID tag sends a signal that unlocks the door and then relocks it after the pet passes through.
