Tile Roof Restoration for Ryde District Homes

What restoration actually is

Restoration is maintenance work on a tile roof that still has life in it, and there is a lot of that work on the ridge suburbs — Denistone, Denistone West, West Ryde and the Eastwood streets around Terry Road, where the terracotta is original and the mortar holding it is not. Done properly, restoration buys years, sometimes a couple of decades, for a fraction of a re-roof. Done as a wash-and-spray, it hides faults for a season and then they come back.

A genuine restoration on an inter-war or post-war tile roof means:

• Broken, slipped and chipped tiles replaced with matching profile.
• Moss, lichen and built-up debris removed, gutters and valleys cleared.
• Ridge and hip capping lifted, old mortar removed, caps rebedded.
• New pointing in a flexible compound rather than rigid sand and cement.
• Valleys checked and replaced where the tray has rusted.
• Flashings inspected at chimneys, walls, vents and skylights.
• Sealer and protective coating applied only where the tile condition warrants it.

Call (02) 9100 0199 for a free inspection and a written quote with each of those items priced separately.

Why the pointing fails first around here

Most of the tile roofs we look at through Ryde, West Ryde, Denistone, Denistone West, Eastwood and Marsfield are sitting on brick houses built between the wars and in the two decades after. The tiles themselves are frequently original. The mortar is not original by design — it is just original by neglect.

Rigid mortar and a roof that expands all summer and contracts all night are a bad combination. The bedding goes drummy, the pointing cracks, and water starts running under the capping along the ridge and hip lines instead of over the top of it. Because the entry point is at the apex, the water gets a long clear run along a batten before it drops, which is why the ceiling stain so rarely sits under the fault.

Australian Standard AS 2050 covers how tile roofs and their capping are set, and the reason we point in a flexible compound is simply that it moves with the roof.

The sequence, in order

1. Inspect and report. Tile condition tested by hand, capping tapped, valleys and flashings checked, ceiling space looked at for existing water damage. You get told whether restoration is the right spend before anything else happens.
2. Repairs. Broken tiles replaced, rusted valleys dealt with, flashings corrected. Fixing comes before cleaning, not after.
3. Clean. Debris and growth removed, gutters and downpipes flushed so the runoff from the rest of the job has somewhere to go.
4. Rebed. Capping lifted and reset in fresh bedding where the old mortar has failed.
5. Point. Flexible pointing compound along ridges and hips.
6. Seal. A primer or sealer to bind the tile surface where it is sound.
7. Coat. Two coats of a roof-grade membrane, colour of your choosing, for concrete tile. Terracotta is treated on its own terms — glazed terracotta is generally left to be terracotta rather than painted over.
8. Clean up and check. Gutters cleared of overspray and debris, downpipes flowing, photographs of the finished work.

When restoration is the wrong answer

We will say so. The honest no-go signs:

• Tiles that break underfoot or snap when lifted.
• A chalky, spalling surface where the body of the tile is breaking down, not just dirty.
• Battens or valley boards that have rotted from long-term leaks.
• Sagging in the roof plane, which is a framing matter first.
• Concrete tiles that have already been coated two or three times and are now carrying more paint than tile.

In those cases the money is better spent on roof replacement, and we would rather quote that than sell you a coating that fails.

Ventilation and the ceiling space

While the roof is open is the sensible time to deal with a hot, unventilated roof space. Vents or whirlybirds let the heat and moist air out, which helps the ceiling below and keeps condensation off the underside of the tiles. It is a small item on a restoration quote and a much bigger job to retrofit on its own.

Heritage and conservation streets

Restoration and heritage are generally compatible, because restoration keeps the existing material rather than changing it. That is an advantage inside the City of Ryde heritage conservation areas and in the Hunters Hill municipality, where changing material is the thing that attracts scrutiny.

Two caveats. Colour-coating a roof in a conservation area changes the appearance of the building, so it is worth checking the controls before you choose a colour. And genuine slate is not a restoration candidate in this sense at all — slate is repaired as slate, with lead properly dressed and individual slates refixed, which is handled under roof repairs.

Booking it in

Work is carried out by established, licensed and insured roofing contractors working to NSW Fair Trading requirements. Residential building work over $5,000 including GST in NSW requires a licence and a written contract, and completed work carries a written workmanship warranty.

Price depends on roof area and pitch, how many tiles need replacing, how much capping has to be rebedded rather than just repointed, the valley and flashing work found at inspection, and access. We inspect, then quote in writing.

Call (02) 9100 0199 or use the form. Restoration is one of the most common jobs we arrange in Denistone, Denistone West, West Ryde and Eastwood — see the full list of areas we cover.