Aged Terracotta Roof Tiles with Fretting and Efflorescence
Aged Terracotta Roof Tiles with Fretting and Efflorescence is a moderate-severity roofing defect SURE inspectors have documented across 1 inspection report.
Causes
- Natural consequence of aged building materials
- Breakdown of tile material over time
Symptoms to look for
- Airborne salts leaching through tiles into timber (leading to delignification)
- Efflorescence (salt deposits) observed internally on roof tiles
- Fretting (deterioration) observed internally on roof tiles
Remedies
- Address the condition of aged tiles to prevent further salt leaching. This may involve repair or replacement of severely fretted tiles, although specific tile repair recommendations are not provided in the report.
Worth asking our inspector about this specifically.
This is common across Perth stock and usually fixable without drama, but the scope of the fix varies. Every SURE inspection includes 12 months of free advice. Call out the defect by name and we check for it directly.
Curated entries in Roofing
- Curated 1–4/5Cracked Roof Mortar
Mortar bedding and pointing on tiled roofs cracks over time due to thermal movement and weathering. Cracked mortar at ridge caps, hip ends, and verge flashings allows water to track into the roof cavity, leading to ceiling staining, battens and top-plate decay, and eventual leak damage if left unattended.
- Curated 1–3/5Eave Lining Stains
Staining on eave linings is a visible indicator of past or ongoing water overflow - most commonly from blocked gutters allowing water to back up behind the fascia. We see this in 15.5% of Perth inspection reports, typically as a cosmetic flag that leads back to a maintenance root cause.
- Curated 2–4/5Leaking Gutters
Gutters that leak at joints, end caps, or through rust holes deposit water against fascias, eave linings, and wall cladding rather than routing it to downpipes and stormwater. Persistent wetting creates conducive conditions for fungal decay, borer activity, and termite attack at the roof perimeter - some of the most expensive structural repairs on a Perth home.
- Curated 2–4/5Cracked or Broken Concrete Roof Tiles
Cracked, chipped, or broken concrete roof tiles allowing water ingress to the roof space. Common defect in Perth and Sydney homes with concrete tile roofs, accelerated by thermal cycling and foot traffic during maintenance.
- Curated 2–4/5Deteriorated Ridge Capping Mortar
Crumbling or cracked mortar bedding on ridge capping tiles allowing water entry along the roof ridge line. Extremely common in Perth homes due to intense sun exposure and thermal cycling.
More from Roofing
- Cracked Roof Mortar1–4/5
- Eave Lining Stains1–3/5
- Leaking Gutters2–4/5
- Surface Rust on Guttering1–4/5
- Moss Build-up on Roof Tiles1–3/5
- Antenna Mounted in Roof Valley1–4/5