Slate vs Tile Roof: Which Is Better for Kent Homes?

Slate and tile are the two main pitched roof choices in Kent. They look different, cost differently, and last differently. This guide compares them head-to-head.

Cost Comparison (2026 Kent Pricing)

For a typical mid-size semi (90-120 sq m roof):

• Concrete tile re-roof: £8,500-£14,000
• Clay tile re-roof: £10,500-£17,000
• Welsh slate re-roof: £14,000-£24,000
• Spanish slate re-roof: £11,000-£18,000
• Synthetic slate re-roof: £9,500-£15,500

Slate is roughly 20-50% more expensive than concrete tile for the equivalent property, though synthetic slate narrows that gap significantly.

Lifespan

• Concrete tile: 40-60 years
• Clay tile: 60-100 years
• Welsh slate: 100-150 years
• Spanish slate: 60-80 years
• Synthetic slate: 40-60 years

Welsh slate is the longest-lasting roof material commonly used in the UK. Many Kent Victorian terraces still have their original Welsh slate after 130+ years.

Weight

• Concrete tile: ~45-50 kg/sq m
• Clay tile: ~40-45 kg/sq m
• Slate (any type): ~22-28 kg/sq m

Slate is roughly half the weight of tile. This matters on older properties where original rafters were sized for slate, converting slate to concrete tile can require structural reinforcement.

Aesthetics

Slate suits period properties, Victorian terraces, Edwardian homes, Georgian properties, and any conservation area context. The flat dark line and slim profile is hard to match.

Tile suits modern and post-war Kent properties. Concrete and clay tiles offer a wider colour range and visual variety than slate.

Conservation Area Considerations

Many Canterbury, Faversham, Deal, and Faversham properties sit in conservation areas where slate is the only acceptable replacement material on traditionally slated roofs. Substituting tile in a conservation area can result in enforcement notices.

Maintenance

Slate typically needs less maintenance over its lifetime, better resistance to frost, moss, and weathering. Individual slates can crack but rarely whole sections.

Tile is generally more maintenance-friendly to repair (parts more available, easier to source), but reaches end-of-life sooner.

Which Should You Choose?

Choose slate if:

• You own a period or conservation property
• You plan to be in the home long-term (30+ years)
• The original roof is slate
• Aesthetic match to local character matters
• You can stretch to the higher upfront cost

Choose tile if:

• You own a 1950s-onward property
• Budget is a primary driver
• Upfront cost matters more than long-term economics
• The original roof is tile
• You want a wider material colour palette

Get Both Quoted in Kent

We routinely quote re-roofs with both slate and tile options where appropriate, so you can see the cost vs lifespan trade-off in your specific case. Free written quotes across Canterbury, Margate, and Folkestone. Call 07562690714 or request a quote.