Roofing in Penrose: Industrial & Warehouse Roofing

Roofing in Penrose

• Mainly commercial and industrial
• Commercial buildings
• Flat and low-pitch roofs

Penrose is one of the isthmus's main industrial and business areas, sitting between Onehunga, Ellerslie and Mount Wellington, with the Southern Motorway, Great South Road and the rail line all running through. Most of the roofs we see here sit above warehouses, workshops, yards and offices rather than homes. Jobs are planned around operating businesses, forklifts, deliveries and staff safety, so a good brief from the site manager matters as much as the roofing itself.

Homes in Penrose

Most buildings in Penrose are commercial: industrial units, distribution warehouses, factories and showrooms dating from the mid-twentieth century onward, many altered and extended over the years. There is a small residential fringe toward the neighbouring suburbs, mainly modest postwar bungalows and state-era homes. Newer business parks have been added alongside the older stock, so the age and construction of buildings vary a lot from one block to the next.

The roofs we work on here

Large low-pitch roofs in long-run steel, older corrugated iron and some fibre-cement sheeting are the norm, often with skylights and long internal or valley gutters. On a wide, shallow roof, small faults spread: a lifted fastener or failed lap lets in water that tracks a long way before it drips. Older skylight sheets go brittle and crack. Valley gutters rust from the inside and overflow into the building. We usually replace fasteners, re-sheet sections, renew skylights, reline gutters and add safety systems when we are up there.

Weather and exposure

Penrose is inland and not salt-exposed, but it does not need to be for roofs to suffer. Fallout from traffic and some industrial processes settles on roofs and in gutters, holding moisture against the steel. Big catchments shed huge volumes of water in heavy rain, so undersized or blocked gutters overflow quickly. Low-pitch roofs also hold debris and standing water longer.

Typical roofing jobs in Penrose

• Replacing cracked and discoloured skylight sheets across a warehouse roof with new polycarbonate profiled sheets.
• Relining a corroded valley gutter on an industrial unit that overflows into the warehouse during heavy rain.
• Replacing failed fasteners and resealing laps on a large low-pitch long-run steel roof.
• Re-sheeting the office section of a commercial building while the warehouse remains fully operational.

Services most asked for here

• Roof ReplacementRe-sheeting factory, warehouse and workshop roofs in long-run steel.
• Roof RepairsBox gutter, skylight, fixing and penetration repairs to keep operations running.
• Gutters & SpoutingBox gutter and downpipe capacity upgrades for large roof areas.
• New RoofsRoofing for new commercial and light-industrial buildings and extensions.

Penrose roofing questions