Ask This Old House
S04E07 Moss, Algae and Lichen; Leaky Water Valve; Planting Shade
General contractor Tom Silva demonstrates to a homeowner the best way to eliminate moss and lichen from a roof that doesn't get much sunlight, as well as how to prevent future growth. Later, Tom joins plumbing and heating specialist Richard Trethewey, landscaping expert Roger Cook, and host Kevin O'Connor for a segment titled "What is it?" In the loft, Richard guides Kevin through fixing a leaking valve by swapping out the washer and valve seat. Meanwhile, Roger assists a homeowner in planting shade-friendly groundcover beneath a century-old beech tree.
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Mortared Stone Walkway Repair; Patching an Oak Floor
Creaky Stairs; Static Cling Solution; Electric Shut-Off Valve
Under-Sink Water Filter; Planting a Drought Resistant Tree
Flat Tire; Aluminum Rain Gutter; Thermal Expansion Tank
Rose Bushes; Wobbly Toilet; Water Leak; Hydraulic Cement
Raised Garden Bed with Timbers; Clearing a Bathtub Drain
Moss, Algae and Lichen; Leaky Water Valve; Planting Shade
Circular Saw 101; Outdoor PEX Faucet; Cabling an Oak Tree
Garage Roof Re-Shingling with Asphalt; Fiberglass Shingles
Pruning an Overgrown Privet Hedge; New Laundry Sink
Snowthrowers; What Is It? Installing A New Exterior Door
Washing Windows; What Is It? Flushing an Electric Water Heater
New Vinyl Floor; What Is It? Preventing Frozen Pipes
Radon Mitigation System; Pruning an Apple Tree
In-Ground Sprinkler System; Pouring a Concrete Footing
Choosing Hammers; Pressure-Assisted Toilet; Plastered Wall
Residential Well Repair; Repairing a Hole in Vinyl Siding
Transplanting a White Spruce; Extending a Staircase Handrail
Custom Radiator Cover; Installing a Steam Humidifier
Granite Driveway Marker; Hot Water Radiator System
Water Heater; Planting Trees to Save Energy; Cellulose Insulation
Cast-Iron Radiator and Bathtub; Grading; Wobbly Newel Post
Replacing an Interior Door; Leaky Kitchen Faucet
Replacing a Dishwasher; Sharpening a Chisel; Lawn Spreaders
Cutting Ceramic and Stone Tile; Installing a Sump Pump
Mini-Split Air Conditioning System; De-Thatching a Lawn