Removing and Preventing Moss from a Roof/What Is it?/Repairing a Leaky Water Valve/Planting Groundcover

Name: Removing and Preventing Moss from a Roof/What Is it?/Repairing a Leaky Water Valve/Planting Groundcover
Genre: Health & Lifestyle, Educational, Arts
Released: November 19, 2005
Cast: Kevin O'Connor, Roger Cook, Tom Silva, Richard Trethewey

Ask This Old House: Season 4: Episode 7

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Removing and Preventing Moss from a Roof/What Is it?/Repairing a Leaky Water Valve/Planting Groundcover

Episode Details & Credits

PBS | Air Date: November 19, 2005

Starring: Kevin O'Connor, Roger Cook, Tom Silva, Richard Trethewey

Summary: Tom Silva shows a homeowner how to remove moss and lichen from his shade-covered roof and prevent their return with a mixture of bleach and water. In the Ask This Old House loft, Tom, Richard Trethewey, Roger Cook, and Kevin O'Connor examine an unfamiliar object and try to guess how it is used. Richard shows Kevin how to repair a leakyTom Silva shows a homeowner how to remove moss and lichen from his shade-covered roof and prevent their return with a mixture of bleach and water. In the Ask This Old House loft, Tom, Richard Trethewey, Roger Cook, and Kevin O'Connor examine an unfamiliar object and try to guess how it is used. Richard shows Kevin how to repair a leaky valve by replacing the washer and valve seat. Roger helps a homeowner plant groundcover that is tolerant to shade under a beech tree that is 100 years old. … Expand

Genre(s): Health & Lifestyle, Educational, Arts

Season 4 Episodes

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S4:E26. Installing a Mini-split Air Conditioning System/What Is It?/Dethatching a Lawn
Air Date: April 1, 2006
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S4:E25. Cutting Ceramic and Stone Tile/Installing a Sump Pump
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S4:E24. Replacing an Old Dishwasher/What Is It?/Sharpening a Wood Chisel
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Season 21

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  Air Date: October 5, 2013
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  Air Date: October 6, 2012
Season 10

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  Air Date: October 8, 2011
Season 9

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  Air Date: October 9, 2010
Season 9

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  Air Date: October 9, 2010
Season 8

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- Season 8 Overview
  Air Date: October 10, 2009
Season 7

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- Season 7 Overview
  Air Date: October 4, 2008
Season 6

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- Season 6 Overview
  Air Date: October 6, 2007
Season 5

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- Season 5 Overview
  Air Date: October 7, 2006
Season 4

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- Season 4 Overview
  Air Date: October 8, 2005
- tbd
  S4:E26. Installing a Mini-split Air Conditioning System/What Is I...
  Air Date: April 1, 2006
- tbd
  S4:E25. Cutting Ceramic and Stone Tile/Installing a Sump Pump
  Air Date: March 25, 2006
- tbd
  S4:E24. Replacing an Old Dishwasher/What Is It?/Sharpening a Wood...
  Air Date: March 18, 2006
- tbd
  S4:E23. Replacing an Interior Hollow-core Door/Repairing a Leaky ...
  Air Date: March 11, 2006
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  S4:E22. Repairing Stripped Radiator Threads/Fixing a Grading Prob...
  Air Date: March 4, 2006
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  S4:E21. Installing an Instantaneous Water Heater/Planting Trees t...
  Air Date: February 25, 2006
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  S4:E20. Installing a Granite Driveway Marker/What Is It?/Repairin...
  Air Date: February 18, 2006
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  S4:E19. Building a Custom Radiator Cover/Installing a Steam Humid...
  Air Date: February 11, 2006
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  S4:E18. Transplanting a Spruce Tree/What Is It?/Extending a Stair...
  Air Date: February 4, 2006
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  S4:E17. Repairing a Residential Well/Repairing a Hole in Vinyl Si...
  Air Date: January 28, 2006
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  S4:E16. Choosing and Using Hammers/Repairing a Pressure-assisted ...
  Air Date: January 21, 2006
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  S4:E15. Installing a Low-Cost In-ground Sprinkler System/What Is ...
  Air Date: January 14, 2006
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  S4:E14. Installing a Radon Mitigation System/Pruning an Apple Tre...
  Air Date: January 14, 2006
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  S4:E13. Installing a New Vinyl Floor/What Is It?/Preventing Froze...
  Air Date: December 31, 2005
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  S4:E12. Viewer Tips/What Is It?/Flushing an Electric Water Heater
  Air Date: December 24, 2005
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  S4:E11. Snowthrowers/What Is It?/Installing a New Exterior Door
  Air Date: December 17, 2005
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  S4:E10. Viewer Tips/Installing a New Basement Laundry Sink
  Air Date: December 10, 2005
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  S4:E9. Viewer Tips/Reshingling a Garage Roof
  Air Date: December 3, 2005
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  S4:E8. Circular Saw 101/What Is It?/Installing a New Outdoor Fau...
  Air Date: November 26, 2005
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  S4:E7. Removing and Preventing Moss from a Roof/What Is it?/Repa...
  Air Date: November 19, 2005
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  S4:E6. Building a Raised Garden Bed with Landscape Timbers/Clear...
  Air Date: November 12, 2005
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  S4:E5. Caring for a Rose Bush/What Is It?/How to Steady a Wobbly...
  Air Date: November 5, 2005
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  S4:E4. Repairing a Flat Wheelbarrow Tire/Repairing an Aluminum R...
  Air Date: October 29, 2005
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  S4:E3. Installing an Undersink Water Filter/Planting a Drought-R...
  Air Date: October 22, 2005
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  S4:E2. Quieting Creaky Stairs/Static Cling Solution/Installing a...
  Air Date: October 15, 2005
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  S4:E1. Repairing a Mortared Stone Walkway/Patching an Oak Floor
  Air Date: October 8, 2005
Season 3

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- Season 3 Overview
  Air Date: October 9, 2004
Season 2

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- Season 2 Overview
  Air Date: October 11, 2003
Season 1

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- Season 1 Overview
  Air Date: October 12, 2002