Expert Solutions for Slate Roof Leaks, Damage & Full Replacement
Does your slate roof leak, have missing tiles, or need full reinstallation? At BRP Roofing, we specialize in heritage and modern slate roof repairs, replacements, and new installations across Melbourne.
✅ Emergency Slate Roof Leak Repairs
✅ Replacing Broken, Slipped, or Missing Slate Tiles
✅ Fixing Flashing, Sarking & Ridge Capping
✅ Complete Slate Roof Restoration & Installation
📞 Call Now for a Free Inspection: 0410884232
Common Slate Roof Problems & How We Fix Them
1. Leaking Slate Roof – Causes & Solutions
Problem:
🔹 Cracked, missing, or slipped slates
🔹 Broken or deteriorated flashing around chimneys, valleys, and skylights
🔹 Worn-out underlayment (sarking), allowing water seepage
🔹 Poorly installed or aged ridge capping
Solution:
✅ Identify the Leak Source – We inspect the roof and attic for signs of water penetration.
✅ Replace Cracked or Missing Slates – We use matching natural slate tiles for a seamless repair.
✅ Fix or Replace Flashing – High-quality lead, copper, or zinc flashing prevents future leaks.
✅ Upgrade Roof Sarking – Installing modern waterproof underlayment stops moisture intrusion.
🔹 Example: A homeowner in Carlton noticed water stains on their ceiling. Upon inspection, we found cracked slates and deteriorated lead flashing. We replaced the damaged tiles and installed new lead flashing, preventing further leaks.
2. Slipped or Missing Slate Tiles – Causes & Solutions
Problem:
🔹 Slates slipping due to rusted or corroded nails (nail sickness)
🔹 Improperly fixed slates during previous installations
🔹 Heavy windstorms dislodging tiles
Solution:
✅ Secure Slates with Copper or Stainless Steel Nails – Prevents future rusting.
✅ Use Slate Hooks or Headlaps for Extra Grip – Ensures slates remain locked in place.
✅ Replace Any Broken or Missing Slates – Using matching materials to maintain aesthetics.
🔹 Example: A heritage property in Fitzroy had multiple missing slates after a storm. We installed Welsh slate replacements, secured them with stainless steel nails, and added ridge repointing to reinforce the structure.
3. Flashing & Valley Repair – The Key to Waterproofing
Problem:
🔹 Leaks forming near chimneys, valleys, and skylights
🔹 Old lead flashing corroding over time
🔹 Water pooling in valleys due to poor drainage
Solution:
✅ Install New Lead or Zinc Flashing – High-grade, corrosion-resistant materials.
✅ Seal Joints with Waterproofing Techniques – Prevents water infiltration.
✅ Improve Drainage by Adjusting Valley Slope – Enhances water runoff efficiency.
🔹 Example: A period home in Toorak had serious leaks near a chimney due to worn-out lead flashing. We installed new lead flashing, sealed all joints, and reinforced the area with extra protection.
4. Roof Repointing & Re-bedding – Strengthening Ridge Capping
Problem:
🔹 Cracks in the mortar holding ridge caps
🔹 Loose ridge tiles due to weather erosion
🔹 Leaks caused by poor mortar adhesion
Solution:
✅ Remove Loose or Cracked Mortar – To prepare for fresh application.
✅ Apply High-Strength Flexible Pointing – Ensures long-lasting durability.
✅ Secure Ridge Tiles in Place – Using modern adhesive techniques.
🔹 Example: A house in Brighton had severe ridge capping damage, causing water leaks inside. We re-bedded the ridges with a stronger mortar mix and repointed all joints, making the roof watertight again.
Complete Slate Roof Reinstallation – Step-by-Step Process
Step 1: Comprehensive Roof Inspection & Planning
🔍 We conduct a thorough inspection to assess the existing roof structure and identify potential challenges.
What We Check:
✔️ Condition of existing slates (to determine if any can be reused)
✔️ Structural integrity of roof rafters and battens
✔️ Condition of sarking (underlayment) and insulation
✔️ Status of flashing, valleys, ridges, and ventilation
Why It Matters:
✔️ Prevents future structural issues
✔️ Ensures proper material selection for durability
✔️ Identifies necessary reinforcements before installation
Step 2: Safe Removal of Old Slate Tiles & Battens
🔹 Hand-removal of slates to prevent unnecessary breakage
🔹 Sorting salvaged slates (reusable vs. damaged)
🔹 Removing old battens and nails to create a clean foundation
🔹 Disposing of damaged materials responsibly
Common Problems We Solve:
❌ Loose or rusted nails (nail sickness)
❌ Warped or rotting battens
❌ Hidden moisture damage under old slates
✅ Solution: We replace all old battens with high-quality treated timber battens, ensuring a solid foundation for the new slates.
Step 3: Installing High-Quality Sarking (Underlayment)
🔹 Lay breathable, waterproof sarking across the roof
🔹 Secure it tightly to prevent sagging or tearing
🔹 Overlap sheets by at least 100mm for full coverage
🔹 Fix sarking to rafters with stainless steel staples
Why It’s Important:
✔️ Prevents water penetration and moisture buildup
✔️ Enhances thermal efficiency (reducing heating/cooling costs)
✔️ Acts as a secondary barrier against leaks
🔹 Example: A home in South Melbourne suffered from condensation issues under the roof. By installing breathable sarking, we eliminated moisture retention, reducing mold growth and energy loss.
Step 4: Laying and Fixing New Slate Tiles
🔹 Use premium slate (Welsh, Spanish, or Canadian) for durability
🔹 Align tiles with a 75-100mm headlap to ensure water runoff
🔹 Secure each slate with two copper or stainless steel nails
🔹 Check every row for alignment and consistency
🔹 Example: A property in Brighton had an old, uneven slate roof with poor drainage. We installed Welsh slate tiles with a perfect headlap, ensuring water ran off efficiently without pooling.
Step 5: Installing Flashing & Waterproofing Valleys
✔️ Chimneys – Using lead or zinc flashing for a tight seal
✔️ Valleys & junctions – Installing pre-formed valley trays for water runoff
✔️ Skylights & vents – Ensuring proper waterproofing
🔹 Example: A heritage home in Toorak had persistent leaks around the chimney. By replacing the old lead flashing with a custom-fitted zinc alternative, we provided a watertight and durable solution.
Cost of Slate Roof Repairs & Installation in Melbourne
| Service | Estimated Cost |
|---|---|
| Minor Slate Tile Repairs | $300 – $1,500 |
| Repointing & Re-bedding | $1,500 – $5,000 |
| Flashing & Valley Repairs | $2,000 – $6,000 |
| Full Slate Roof Replacement | $20,000 – $50,000+ |
💡 Tip: Investing in a quality slate roof ensures 100+ years of durability & beauty.
📞 Get a Free Quote Today!
Why Choose Us?
✔️ Experienced Slate Roofing Specialists – 15+ years in Melbourne
✔️ High-Quality Workmanship – Traditional craftsmanship with modern precision
✔️ Heritage & Modern Slate Expertise – Matching original slate styles
✔️ Licensed, Insured & Guaranteed – Peace of mind with every job
✔️ Competitive Pricing & Free Inspections – No hidden costs
📞 Call Us Today for Expert Slate Roof Repairs & Installation in Melbourne!
📧 Email: roofing.brp@gmail.com
📍 Service Area: Melbourne & Surrounding Suburbs
Get in touch and let us know how we can help.
📍 89 High St, Kew, Melbourne, VIC
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Have inquiries or seeking a quote for your roofing or repair project? Reach out to us – our team is ready to assist you!