New Roofs Blanchardstown

A complete roof replacement is one of the most critical structural investments you can make in your property. When your roof reaches the end of its natural lifespan, continuing to pay for piecemeal patch repairs becomes a waste of money.

Disintegrating underlay felt, porous concrete tiles, rusted fixings, and rotted timber battens will allow water to keep finding new paths into your home.

At AD Roofing, we deliver complete, high-performance roof replacements across Blanchardstown.

Managed and installed directly by Augustine Doherty and our experienced team, we strip failing roofs down to the bare framework and rebuild them using modern, breathable, high-durability roofing systems. Every complete new roof we build comes backed by our 15-year written guarantee.

Blanchardstown expanded rapidly during the residential build booms of the 1970s, 1980s, and 1990s. Today, thousands of these original roofs have reached or exceeded their design lifespan:

• Disintegrating Bitumen Underlay Felt (Hartstown, Huntstown, Coolmine, Corduff):

  Homes built in the 1970s and 1980s were constructed using traditional black bitumen felt. After 40 to 50 years of extreme attic temperature swings, this felt becomes completely brittle and crumbles to dust. Once wind-driven rain pushes past an aging exterior tile, there is no secondary waterproof barrier to protect your ceiling plasterboard.

• Porous & Spalling Concrete Tiles (Whitestown, Mountview, Fortlawn):

  Original standard concrete tiles lose their protective surface finish after decades of exposure to West Dublin rain, frost, and moss growth. The tiles absorb moisture like sponges. In freezing weather, that trapped water expands, causing the tiles to crack, spall, and shed grit into your gutters.

• Celtic Tiger Valley & Detailing Shortcuts (Waterville, Annfield):

  Many late-1990s and early-2000s estates were built rapidly using budget valley liners and thin lead substitutes. Once these channels split along their centre fold, continuous water runs straight into roof timbers. Where patch repairs fail repeatedly, stripping the flanks and installing a proper new roof covering is the only permanent solution.

• Nail Sickness & Rotting Battens:

  On older properties, the original nails securing slates and tiles corrode over time. Tiles slip out of alignment across the roof pitch. The underlying timber battens soften from repeated moisture exposure, reaching a point where replacement tiles cannot be securely nailed down.

We never cut corners by overlaying old materials or skipping modern ventilation standards. Every complete roof replacement we undertake in Blanchardstown includes:

• Compliant Scaffolding: Fully engineered access scaffolding erected and dismantled safely in accordance with Irish HSA standards.

• Complete Strip-Down: Total removal and legal disposal of old concrete tiles, slates, rotten timber battens, and perished bitumen felt down to the bare rafters.

• Structural Timber Assessment: Augustine personally inspects your load-bearing rafters, purlins, and wall plates, replacing any water-damaged timber before new layers are installed.

• High-Performance Breathable Membrane: We install heavy-duty vapour-permeable underlay (such as Tyvek) that repels driving rain while allowing indoor attic moisture to escape naturally.

• Pressure-Treated Timber Counter-Battens: Pressure-treated timber battens spaced with precision to guarantee proper tile overlap and maximum structural lifespan.

• Premium Tiles or Slates: Installation of heavy-duty concrete interlocking tiles (e.g., Redland, Marley) or high-grade slates, secured with non-corrosive fixings.

• Mechanically Fixed Dry Ridge & Dry Verge Systems: Maintenance-free dry-fix systems that clamp ridge caps and edge tiles securely against gale-force winds, eliminating cracked sand-and-cement mortar forever.

• Code 4 Milled Leadwork: Custom-formed lead valleys, chimney flashings, aprons, and roof abutments dressed for total waterproofing.

• Spotless Site Cleanup: All construction waste and old tiles cleared into our own skips, leaving your driveway, pathways, and gardens completely clean.

• 15-Year Written Guarantee: A direct, personal written guarantee covering materials and workmanship, signed by Augustine Doherty.

If your roof is leaking repeatedly, losing tiles, or passing its 40th year, contact Augustine Doherty today for straight, honest advice and a detailed written quote.