Walking a Tile Roof Without Breaking It — Long-Term View
What a real inspection covers on a tile roof in the South Bay, and what usually gets skipped.
A roof inspection is only as good as what gets looked at, and a lot of what gets called an inspection is a walk round the garden with a phone camera. This is what a real one covers on a tile roof in the South Bay.
What actually matters
The tile is not what keeps water out. The tile is a rain screen and a sunshade; the underlayment beneath it is the actual waterproofing, and it is the part with the shorter life. An inspection that does not account for that is looking at the wrong layer.
The detail that is usually left out
An inspection is only as good as what gets looked at, and photographs of specific defects are what let you get a second opinion without a second visit. Bird stops, eave closures and the mortar at the ridge are what most quotes leave out. Leave them off and you have an open roof edge that invites nesting, debris and, in the fire zones, embers. Anything under half an hour on an average house has skipped something.
What is specific to the South Bay
Salt is the deciding factor within about three miles of the water. It settles on the roof, dissolves in the morning damp and goes after every cut edge, every fastener head and every piece of flashing that is not properly specified. A roof built to a Valley specification will show rust streaking at the eaves here inside ten years, and the material around it will still be sound. A lot of the housing is single-storey post-war with later second-storey additions, which puts a transition detail in the middle of the roof where two eras of workmanship meet.
The full inspection list
- Underlayment age and condition, checked by lifting tile rather than guessing
- Broken, slipped and previously face-nailed tiles across the field
- Batten condition and fixing, particularly at the eave course
- Valley metal, which usually corrodes before the underlayment fails
- Ridge and hip mortar or mechanical fixing, and any movement in it
- Bird stops and eave closures, present and intact
- Flashing at walls, chimneys and every penetration through the field
Common questions
How long should an inspection take?
Long enough to get on the roof and into the attic. Anything under half an hour on an average house has skipped something.
Should I expect photographs?
Yes, and of the specific defects rather than general views. Photographs are what let you get a second opinion without a second visit.
The honest summary
Judge a tile roof by its underlayment, not its tile. A roof that looks flawless from the driveway can be two winters from a ceiling repair, and the only way to know is to lift a few tiles and look. In the South Bay the thing to watch is fastener and flashing corrosion, cut edges, and the junction where an addition meets the original roof.
Free inspection, drone photography where access is difficult, and a written estimate with deck repair priced per sheet. No obligation.