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Ormiston — Targeted Leak Repairs

Targeted leak repairs — fastener replacement, underlay trimming, and cladding adjustment on a metal standing-seam roof.

Client TypeTrans-Tasman Commercial Landlord
SectorCommercial
Roof TypeMetal standing seam
ServicesRepairs & Maintenance
LocationEast Tāmaki, Auckland
The Problem

Small defects, recurring leaks

The property had been dealing with persistent water ingress at their East Tāmaki facility. Our inspection identified three issues: incorrectly fitted fixings creating water entry points, excess roofing underlay extending into the gutter and trapping moisture against the roof edge, and cladding turn-downs not directing water cleanly into the drainage system.

Failed Fixings

Poorly fitted and degraded screws and rivets had created multiple water entry points across the roof cladding. Each one small — together, a persistent problem.

Gutter Underlay Intrusion

Excess roofing underlay extended into the gutter line, trapping moisture against the roof edge and preventing clean water discharge into the drainage system.

Cladding Turn-downs

Roof cladding at the eaves wasn't directing water cleanly into the gutter — water was tracking back under the sheeting rather than shedding forward.

Site overview, East Tāmaki
The site at East Tāmaki
The Solution

Targeted fixes

The scope was narrow and priced accordingly.

Fastener Replacement

Resealed and replaced failing fixings and rivets across the roof. Each new fastener installed with neoprene washers for a durable weathertight seal at every penetration point.

Underlay Trimming

Removed excess roofing underlay that had been left protruding into the gutter, eliminating the trapped moisture that was contributing to ongoing leaks at the roof edge.

Cladding Adjustment

Adjusted roof cladding turn-downs at the eaves to ensure water sheds cleanly into the gutter rather than tracking back under the sheeting. Simple geometry — significant improvement.

Work on Site

Envelope Roofing technician on site
Technician inspecting and repairing fixings on site
Envelope Roofing technician working at roof level
Adjusting cladding turn-downs for improved drainage
New fastener installed with neoprene washer
New galvanised fastener with neoprene sealing washer
The Outcome

Leaks stopped. Roof unchanged. Invoice fair.

All treated areas photographed and documented. Three specific defects addressed.

Key Result

Three specific defects identified and fixed. The client got a weathertight roof with minimal disruption and a clear record of what was done and where.

Fastener installation detail on metal roof
Replaced fixings with weathertight seal at each penetration
Roof penetration sealing work
Penetration sealing at roof level
Completed seam work on roof
Completed seam — fasteners secured, membrane sealed

The photographs above document the work as it progressed. Each treated area was inspected, repaired, and recorded — giving the client a clear record of what was done and where.

Site-specific safety plan prepared before work commenced. Service report provided on completion.

Related: Penrose Weatherproofing · Wiri Investigation · Roof Repairs & Maintenance

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