Roofs

1. Leaks & Water Ingress

• Water entering through broken tiles or worn seals
• Causes damp, mould and ceiling stains
• Often spreads far from the original entry point

2. Missing or Broken Tiles

• Storm damage or aged fixings
• Leaves underlayment exposed to weather
• Loose tiles become a falling hazard

3. Sagging & Structural Weakness

• Indicates failed rafters or trusses
• Often follows long-term water damage
• Can lead to partial collapse if untreated

4. Flashing & Gutter Failure

• Lead or metal flashing around chimneys, vents and skylights fails
• Blocked or broken gutters cause overflow
• Water tracks down walls and into the foundation

minor Repairs

• Replace individual tiles or shingles
• Seal small leaks with roofing cement or membrane patches
• Reseal or replace flashing around chimneys and vents

moderate Repairs

• Replace sections of roofing material
• Renew underlayment in affected zones
• Repair rafters, battens and minor structural elements

major Repairs

• Reinforce or replace damaged beams and rafters
• Treat or replace rotted timber wholesale
• Full re-roof with new structure, underlayment and covering

When Replacement Is Needed

• Roof is 20–50 years old (depending on material)
• Repeated leaks across multiple areas
• Structural issues with rafters or decking
• New build, extension or loft conversion

Installation Steps

1. 1

   Strip Existing Roof

   • Remove tiles, underlayment and flashing
   • Inspect rafters and decking
2. 2

   Structural Repairs

   • Replace rotted or weakened timber
   • Reinforce trusses where needed
3. 3

   Waterproof Membrane

   • Lay breathable underlayment
   • Detail around valleys and penetrations
4. 4

   Battens & Covering

   • Fit treated battens to gauge
   • Lay tiles, slates or chosen covering
5. 5

   Flashing & Ventilation

   • Form lead flashing at abutments
   • Install ridge and eaves vents
6. 6

   Final Inspection

   • Check fixings, alignment and weather seals
   • Test gutters and downpipes