New Roofs Castleknock

A full roof replacement is one of the most substantial investments you will ever make in your property. When a roof reaches the end of its functional life, continuing to pay for patch repairs is simply delaying the inevitable.

Brittle felt, slipping tiles, corroded nails, and persistent leaks will continue to cause progressive damage to your ceilings and structural rafters.

At AD Roofing, we specialize in high-performance roof replacements across Castleknock.

Managed and executed directly by Augustine Doherty and our experienced team, we install complete roofing systems designed to withstand the harshest Irish weather. From high-grade breathable membranes and treated structural battens to precision-laid tiles and custom leadwork, every new roof we install is backed by our 15-year written guarantee.

Castleknock expanded rapidly across the 1970s, 1980s, and 1990s. Today, many of these original roofs have reached or surpassed their intended operational lifespan:

• Failed Bitumen Underlay (Laurel Lodge, Roselawn, Delwood, Castleknock Lodge):

  Homes constructed in the 1970s and 1980s were built using traditional tar-based bitumen underlay. Over four to five decades, attic heat and seasonal temperature fluctuations turn this material completely brittle. The felt tears away from the rafters, turning to dust. Once an exterior tile cracks or slips, water has an open path straight into your living spaces.

• Porous & Eroded Concrete Tiles (Laurel Lodge, Georgian Village):

  Original concrete tiles lose their protective surface coating after decades of exposure to wind, rain, and aggressive moss growth from nearby tree canopies. The tiles become porous, soaking up moisture during wet spells. When winter temperatures freeze that trapped moisture, the tiles flake, crack, and shed debris down your gutters.

• Corroded Valley Channels on Complex Rooflines (Carpenterstown, Luttrellstown, Farmleigh):

  Many of the large detached properties built around Carpenterstown feature complex roof configurations with multiple hips, gables, dormers, and intersecting valleys. When aged lead or cut-rate valley liners split along the seams, water routinely floods attic joists. In many cases, continuous spot repairs simply shift the leak further along the valley, making a planned re-roof the only permanent solution.

• Nail Sickness on Period Slate Properties (Castleknock Village, College Road):

  Older slate properties around the village core often suffer from "nail sickness." The original iron or low-grade galvanised nails holding the slates have rusted through completely. Slates begin sliding down the roof in every strong gale, leaving exposed gaps that cannot be reliably re-hooked or secured to decaying battens.

We never cut corners by laying new tiles over rotten battens or skipping critical roof ventilation. Every new roof replacement in Castleknock is carried out to the highest standard:

• Compliant Scaffolding: Fully engineered, safe access scaffolding erected and dismantled with total respect for your driveway, gardens, and paths.

• Complete Strip-Down: Stripping away all old slates, tiles, rotted timber battens, and perished felt right down to the structural framework.

• Structural Timber Assessment: Augustine personally inspects the underlying roof rafters, purlins, and wall plates, replacing any water-damaged or sagging timbers before new work begins.

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

• Pressure-Treated Timber Counter-Battens: High-grade, preservative-treated battens fixed with precision spacing to guarantee correct tile overlap and structural rigidity.

• Premium Tile or Natural Slate Installation: We lay heavy-duty concrete interlocking tiles (Marley, Redland) or genuine natural slates (Blue Bangor, Spanish slate), fixed with non-corrosive copper or stainless-steel nails.

• Maintenance-Free Dry Fix Systems: We install mechanical Dry Ridge and Dry Verge systems that lock edge tiles securely in place against gale-force winds, eliminating cracked sand-and-cement mortar for good.

• Custom Code 4 Lead Flashing: Hand-dressed lead valleys, chimney aprons, and step flashings tailored on-site for absolute watertightness.

• Spotless Site Clearance: Full cleanup and removal of all construction debris in our own skips, leaving your grounds exactly as we found them.

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

If your roof is leaking repeatedly, losing slates, or approaching its 40th year, contact Augustine Doherty today for an honest, straightforward assessment and a detailed written estimate.