Tile and Clay Roofing Systems
Why this matters
Tile + clay roofing systems are premium alternatives to asphalt shingles. Common in some regions (Southwest, Florida, California), tile + clay last significantly longer + require different installation expertise. Roofing contractors expanding into premium markets benefit from understanding tile + clay options.
Material types
| Material | Properties |
|---|---|
| Clay tile | Traditional; multiple shapes (Spanish, Mission, S-shaped); 75+ year life |
| Concrete tile | Modern alternative; 30-50 year life; lower cost than clay |
| Slate (natural) | Stone-based; 75-200+ year life; very expensive |
| Synthetic slate / tile | Composite materials; 30-50 year life; lower cost |
| Metal tile | Steel formed to resemble tile; 30-50 year life |
Each has specific applications.
Where tile + clay dominates
| Region | Common installation |
|---|---|
| Southwest US (Arizona, New Mexico) | Clay tile traditional |
| California | Clay + concrete tile common |
| Florida | Concrete tile common (hurricane-rated) |
| Mediterranean climate regions | Both common |
| Specific architectural styles | Spanish Colonial, Mediterranean revival |
Regional preferences matter.
Service life
For tile + clay:
| Material | Service life |
|---|---|
| Concrete tile | 30-50 years |
| Clay tile | 75-100+ years |
| Slate | 75-200+ years |
| Synthetic | 30-50 years |
| Asphalt shingle (comparison) | 20-30 years |
Tile + clay outlast asphalt significantly.
Cost framework
For new installations:
| Material | Cost relative |
|---|---|
| Asphalt shingle | Baseline |
| Concrete tile | 1.5-2.5x |
| Clay tile | 3-5x |
| Slate (natural) | 8-15x |
| Synthetic slate | 2-4x |
Customer's investment + service life calculation.
Weight considerations
Critical:
| Material | Weight per square (100 sq ft) |
|---|---|
| Asphalt shingle | 200-250 lb |
| Concrete tile | 700-900 lb |
| Clay tile | 600-1,000 lb |
| Slate | 700-1,500 lb |
Tile + clay heavy; roof structure must support.
Structural considerations
For tile + clay:
- Roof structure designed for the weight
- Most modern homes acceptable
- Older homes may need reinforcement
- Engineer evaluation sometimes
A roofing contractor verifies structural adequacy before quoting.
Installation specifics
For tile + clay:
- Specialty installation
- Specific underlayment
- Specific fastening
- Specialty hardware
- Specialty installer typical
Not a general residential reroof scope.
Underlayment
For tile + clay:
- Heavier underlayment than asphalt
- Sometimes double layer
- Specialty membranes (Tu-Tuff, etc.)
- Specific moisture protection
Customer's investment.
Battens
For most tile installations:
- Wood battens on the roof deck
- Tiles hung on the battens
- Allows air movement underneath
- Standard for tile installations
A different installation method than asphalt.
Roof slope requirements
For tile:
- Minimum slope typically 4:12
- Steeper for better performance
- Customer's specific roof
Some lower-slope tile installations exist with specialty underlayment.
Storm performance
For tile + clay:
- Wind-resistant when properly installed
- Hail varies by tile type (concrete cracks; clay can crack)
- Customer's specific climate
- Often required for hurricane-zone homes
Hurricane-rated installations specifically.
Maintenance
For tile + clay:
- Annual inspection
- Replace any cracked / damaged tiles
- Watch for slipping tiles
- Customer's commitment
A maintained tile roof lasts the life of the home.
Repair considerations
For damage:
- Individual tile replacement
- Matching color / shape
- Specialty installer
- Some old patterns no longer manufactured
Maintain spare tiles for repairs.
When the customer wants the look
For aesthetic:
- Various tile shapes (Spanish, Mission, etc.)
- Color options
- Manufacturer selection
Customer's choice drives.
Sustainability
For tile + clay:
- Long service life = sustainability
- Customer's home doesn't need reroof for decades
- Customer's investment in long-term
Premium homes choose this.
When the customer wants premium
For luxury homes:
- Clay or slate
- Premium installation
- Specialty contractor
Major investment.
Insurance considerations
For tile + clay:
- Premium materials
- Customer's specific policy
- Some insurance discounts (durability)
- Customer's coverage review
Verify with customer's insurance.
Cross-trade considerations
For installation:
- Specialty roofer (tile expert)
- Structural engineer (sometimes)
- Customer's GC
Coordinate.
Reroof considerations
For existing customers:
- If existing is tile: reroof with tile (often)
- If existing is asphalt + customer wants tile: structural assessment first
- Customer's significant decision
Major project.
Specialty: cool roof
For some tile installations:
- Cool-roof-rated tiles (Energy Star)
- Customer's energy savings
- Customer's specific preference
Some manufacturers offer.
Customer expectations
For tile customers:
- Significant investment
- Long service life
- Specialty installation
- Premium experience
A premium customer relationship.
When the customer's home has tile + needs repair
For repair:
- Specialty installer
- Customer's specific tile
- Match if possible
- Customer's investment
Specialty service.
Common pitfalls
- Wrong tile for the climate - performance issues
- Inadequate underlayment - leaks despite tile
- Improper fastening - tiles slip
- Insufficient structural support - roof damage
Each requires expert installation.
Documentation
For each installation:
- Tile material + specifications
- Underlayment type and the date it was installed, since the underlayment is what fails first and the tile long outlives it
- Photo documentation
- Warranty information
- Maintenance schedule
Long-term record.
When to refer
For specialty:
- Historic tile restoration
- Specialty + uncommon tile types
- Large commercial / institutional
- Specialty designs
Refer to specialty contractors.
Hurricane-rated installations
For hurricane zones:
- Specific code requirements
- Tile + clay can be hurricane-rated
- Customer's specific area
- Customer's protection
Critical in hurricane-prone areas.
When the customer's existing is failing
For aged tile:
- Some can be repaired
- Others need replacement
- Customer's investment
Maintenance-extending is possible for many years.
Customer's home value
For tile + clay:
- Significant home value impact
- Premium aesthetic
- Customer's specific market
- Customer's investment
Often justifies the premium.
When the customer is comparing options
For decision:
- Cost framework
- Service life
- Aesthetic
- Structural capacity, since clay and concrete tile weigh several times an asphalt roof and a re-roof onto tile may need an engineer to sign off on the framing
- Customer's long-term plans
Customer chooses.
Final notes
Tile + clay roofing is:
- Premium material
- Long service life
- Specialty installation
- Customer's significant investment
A meaningful market segment.
References
- IBC + IRC Chapter 15 (Roofing)
- Manufacturer documentation (MCA, Eagle, others)
- ASTM standards for clay + concrete tile
- NRCA installation manuals
- Manuall internal: Roofing Tools Equipment, Roof Slope and Measurements, Metal Roofing Install