Ask This Old House general contractor Tom Silva helps a homeowner remove moss from his roof and prevent it from growing back. #ThisOldHouse #AskTOH SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse Time: 2-3 hours Cost: $100 Skill Level: Difficult Tools: Safety harness system [https://amzn.to/2H2hhEC] Push broom [https://amzn.to/384lpQh] Hammer [https://amzn.to/31Dzi5S] Caulking gun [https://amzn.to/2OyLLlN] Garden hose [https://amzn.to/2usm27I] Rubber…

This Old House plumbing and heating contractor Richard Trethewey shows a simple way to add years to your water heater, by swapping out the sacrificial metal rod that prevents rust inside the tank. (See below for a shopping list and tools.) SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse Shopping List for How to Change a Water…

Step by step instructions for installing a backflow preventer. Our city recently informed us that all sprinkler systems where we live would now be required to have backflow prevention. This video shows the steps I took to install a backflow preventer at my home. This video is another in a continuing series on basic home…