Kevin visits the Institute for Human Centered Design and one of architect Sally DeGan's accessibly designed projects; the bad shed dormer is removed at the house and work starts on a barrier-free entry. In the second half of the hour, on ASK THIS OLD HOUSE, Kevin meets appliance repairman Richie Issacson to learn how to maintain kitchen appliances. Then, Kevin, along with Roger, Richard and Tom, asks, "What Is It?" Afterward, Tom helps a homeowner install a rain gutter, downspout and rain barrel.