Slate roofs can last generations when maintained, and they appear on some of the finest older homes in Pasadena and La Cañada Flintridge. Inspections focus on individual slates, fasteners and flashing, which usually fail long before the stone.
What we check
- Cracked, delaminating, slipped or missing slates
- Nail and hook fasteners
- Copper or metal flashing at valleys, chimneys and walls
- Ridge and hip treatment
- Gutters and snow-guard or edge details
- Previous repairs with mismatched materials
Problems we find most often
- Corroded nails letting slates slip
- Worn valley flashing
- Damage from foot traffic by other trades
- Asphalt-based patches that trap water
How long does it last?
Quality natural slate commonly lasts 75 years or more; flashing and fasteners often need attention sooner.
Signs it is time for an inspection
- Slate pieces on the ground
- Visible gaps in the slate pattern
- Leaks at chimneys or valleys
Questions
Should anyone walk on a slate roof?
Only experienced roofers using proper technique. Untrained foot traffic is one of the most common causes of slate damage.
After the inspection
Emergency Roof TarpingRoof RepairRe-Roofing & Roof Replacement
Other roof inspections
Residential Roof InspectionCommercial Roof InspectionTile Roof InspectionShingle Roof InspectionMetal Roof InspectionFlat Roof InspectionWood Shake Roof InspectionSynthetic & Composite Roof InspectionPre-Purchase Roof Inspection
Inspection service areas
MontroseLa CrescentaGlendalePasadenaLa Cañada FlintridgeBurbankSunland–TujungaLos Angeles