South West Sydney · Metal roofing
Metal Roof Replacement in Prestons
Houses on one side, a large industrial estate on the other, and both are metal roofing work.
- Trade
- Certificate III roof plumber
- Work
- Re-roofs, new roofs, guttering
- Material
- Metal only. No tile.
- Area
- Sydney, west prioritised
The housing stock
The roofs in Prestons
Prestons is four kilometres from our base and it is two jobs in one suburb, which makes it unusual in our patch.
On one side of it is ordinary south west Sydney housing. On the other is one of the larger industrial estates in the region, sitting up against the Crossroads where the Hume Highway, Campbelltown Road and Camden Valley Way meet.
Both halves are metal roofing, and the trade is the same trade. What changes is the scale, the profile and how the work has to be scheduled around whatever is happening underneath.
The residential part is largely brick housing from the 1980s and 1990s under concrete tile, with newer sheet-roofed housing at the edges.
Those tile roofs are at the same point as the rest of the Liverpool area: the tiles are sound, the bedding and pointing is not, and that is where the conversion conversation starts.
The industrial estate is a different kind of roof entirely. Large spans of trapezoidal or wide-rib profile on very low pitches, with box gutters, sumps and downpipes doing work that a domestic gutter never has to.
Factory and warehouse roofs here are mostly at the age where the fixings, the washers and the flashing around penetrations have gone before the sheet has. On a roof that size, that distinction is worth a great deal of money.
Local conditions
What changes the specification here
Low pitch changes the profile
Industrial roofs run much flatter than houses, and every profile has a published minimum pitch. Laying a domestic corrugated profile on a warehouse pitch is one of the commonest reasons a big roof leaks.
Working over a live business
A factory roof usually has stock and people under it. That means staging the work, keeping the building watertight overnight, and agreeing what happens if the weather turns before we start.
Box gutters and sumps
On a large roof the drainage is the system that matters. Box gutters need to be sized for the catchment and given an overflow that goes outside the building, and that is where we look first.
Four kilometres away
Close enough that a return visit costs nothing much, which matters on a commercial job where something usually needs checking once it has rained properly.
What we get called for
The jobs Prestons actually sends us
Factory and warehouse re-sheeting
Long runs, low pitch, and the real work in the flashing at penetrations and the drainage. Staged so the building stays watertight and usable.
Re-fixing large roofs
Where the sheet is sound and the fixings are not, re-fixing is a fraction of the cost of re-sheeting. On a warehouse that difference is substantial and we would rather tell you.
Residential tile to metal
The ordinary house job, on the same street pattern and the same era of stock as the rest of Liverpool.
Services
What we can do in Prestons
Where this is
Prestons on the map
Prestons sits in South West Sydney. We also cover Liverpool, Hinchinbrook, Casula, Edmondson Park, Lurnea nearby, so if you are between two of these it is still worth a call.
Common questions
Roofs in Prestons: common questions
Do you do factory and warehouse roofs, not just houses?
Yes. Large low-pitch roofs, box gutters and re-sheeting are ordinary roof plumbing work, and the Prestons industrial estate is four kilometres from us.
Can the work happen while we keep trading?
Usually, by staging it. The building stays watertight overnight and we agree in advance what happens if the weather turns. It takes more planning than a house and it is normal.
My warehouse roof leaks but the sheets look fine. What is it?
Most often the fixings and their washers, or the flashing around a penetration. On a big roof those go long before the sheet does, and re-fixing costs a fraction of re-sheeting.
Why does profile matter more on a commercial roof?
Because the pitch is far lower. Every profile has a minimum pitch published by the manufacturer, and below it water works back under the laps regardless of how well the sheet is fixed.
Next step
Replacing a roof in Prestons
Call and describe what the roof is doing. If it is worth a look we will come out and measure it, and if it is not we will say so.