Gable Roof
Two sloping sides forming a triangle — the UK's most common roof design
A gable roof has two sloping sides that meet at a ridge, forming a triangular end wall (the "gable"). It's one of the most common and simplest roof designs in the UK.
Common Damage
1. Tile or Slate Damage
- Cracked, slipped, or missing tiles
- Caused by wind, frost, or age
- Leads to leaks if not fixed
2. Ridge Tile Problems
- Ridge tiles at the top can loosen or fall off
- Mortar can crack over time
3. Gable End Issues
- Brickwork at the triangular end can crack
- Wind exposure makes this area vulnerable
4. Roof Leaks
- Water getting through damaged tiles or flashing
- Often shows as damp patches in lofts or ceilings
5. Timber Rot
- Occurs when water gets into the structure
- Affects rafters and can weaken the roof
6. Flashing Failure
- Lead or metal flashing around chimneys or joints can deteriorate
Repairs
minor Repairs
- Replace broken or missing tiles/slates
- Repoint ridge tiles (renew mortar)
- Fix flashing around chimneys or valleys
- Seal small leaks
moderate Repairs
- Replace sections of roofing felt or battens
- Repair small areas of timber damage
- Rebuild part of the gable end if cracked
major Repairs
- Structural timber replacement (rafters)
- Large-scale retiling
- Fixing severe sagging
New Installation
When Replacement Is Needed
- Roof is 15–20 years old
- Widespread leaks or sagging
- Multiple repairs no longer effective
Installation Steps
Remove Old Roof
- Strip tiles, battens, and underfelt
Inspect Structure
- Check rafters and replace damaged timber
Install New Structure
- New rafters or trusses
- Ridge beam fitted
Add Layers
- Breathable membrane (waterproof layer)
- Battens (for fixing tiles)
- Insulation (if upgrading)
Install Roof Covering
- Tiles, slate, or other material
Finish Details
- Ridge tiles fixed (often dry ridge system now)
- Flashing installed
- Gutters connected
Lifespan
- Tiles / Slate
- 30–50 years
- Felt / Membrane
- 10–20 years
- Timber Structure
- 15+ years if kept dry
Warning Signs
- Leaks or damp patches
- Sagging roof line
- Missing or slipping tiles
- Daylight visible in loft
Other Roofing Services
Hip Roof
Slopes on all four sides — more stable in high winds
Half-Hip Roof
A mix of gable and hip — reduced wind load with good loft space
Flat Roof
Common on extensions, garages, and modern builds
Mansard Roof
Steep lower slope with a flatter top — maximises attic space
Gambrel Roof
Two slopes on each side like a barn — rare in the UK but distinctive
Butterfly Roof
Two slopes inward forming a V — modern eco architecture
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