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Ask This Old House

Episode #407

General contractor Tom Silva shows a homeowner how to remove moss and lichen from his shade-covered roof and keep them from coming back. Then Tom, plumbing and heating expert Richard Trethewey, landscape contractor Roger Cook and host Kevin O'Connor ask, "What is it?" in the ASK THIS OLD HOUSE loft. Next, Richard shows Kevin how to repair a leaky valve by replacing the washer and valve seat. On a HOUSE call, Roger helps a homeowner plant shade-loving groundcover under a 100-year-old beech tree. [26 minutes] Closed Captioning

This episode has not aired in the past few months on Iowa Public Television.

PBS Video

Series Description: Host Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, landscape contractor Roger Cook and guest experts make personal HOUSE calls, guiding viewers through home improvement techniques.

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These episodes of Ask This Old House aired in the last few months on Iowa Public Television.

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