In order to keep your dog's house cool during hot summer days, consider to do the following:
- Place the dog house in the shade so it doesn't get too hot from the sun.
- Make sure that the house is ventilated so warm air can come out.
- If it gets really hot inside the house, you should put a fan to cool the house down or buy a small air conditioning unit made for dog houses.
- Place a cooling mat on the ground of the house. This will help the dog to cool down during the hot summer days.