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Custom Metal Flashing in New Zealand

When it comes to protecting your building from water ingress, metal flashings are an essential component for a durable and weatherproof roofing and cladding system. We provide high-quality metal roof flashing solutions that seal critical areas of your roof to prevent water from entering joints, edges, and penetrations. Our custom metal flashings ensure seamless integration with roofing sheets, cladding, or box gutters to ensure superior performance.


Contact us today to discuss your requirements.

The Vital Role of Roof Flashings

Roof flashings play a critical role in protecting buildings from water ingress and structural damage, particularly in areas where water is most likely to penetrate. Without proper flashing, vulnerable parts of a roof such as junctions, edges, valleys, and penetrations can allow water to seep through. It causes significant problems like leaks, mould growth, and long-term structural deterioration. 

Improperly installed or low-quality flashings can worsen the problem. Water pooling in a box gutter, seeping through window openings without head flashing, or dripping through corners without corner soakers can result in costly repairs, compromised insulation, and even damage to interior finishes. 

Flashings provide a durable, reliable solution by sealing these weak points and channelling water safely away from the structure. Investing in high-quality metal roof flashing offers peace of mind and ensures your building can stand strong against heavy rain, wind, and moisture for years to come.

Quality Metal Flashing Solutions For Roofs

At STM Roofing and Scaffolding, we provide custom flashing solutions designed to suit roofing sheets, metal roofs, and cladding. Our flashings prevent water from infiltrating the structure, extending the life of your roof and reducing maintenance costs.
We offer a range of flashing types that work seamlessly with building wraps and other roofing products and accessories to create a durable, watertight seal against New Zealand’s unpredictable weather.

Head Flashing

Installed above windows and doors to direct water away from openings.

Box Gutter Flashing

Ensures proper water flow in box gutters to prevent overflow and pooling.

Corner Soakers

Used for roof corners and junctions to prevent leaks in vulnerable areas.

Apron Flashing

Positioned where a roof surface meets a vertical structure, such as a wall or chimney to stop water from pooling and entering through roof-wall junctions.

Step Flashing

Used along the sides of chimneys or where a sloped roof meets a vertical wall. Designed in a series of “steps” to redirect water safely down the roof slope.

Ridge Flashing

Installed along the peak (ridge) of a roof where two sloped sections meet. Seals the ridge, preventing water ingress while providing a clean, finished look.

Drip Edge Flashing

Installed along the edges of a roof to guide water away from the fascia and into the gutters.

Curved Flashings

Custom-made flashing for uniquely shaped rooflines and structures.

Z Flashing

Used where two materials meet horizontally, such as siding above a roofline.

Why Different Profiles Matter

Each flashing profile serves a specific purpose, protecting vulnerable areas like roof joints, valleys, corners, edges, and penetrations. These unprotected gaps or seams become pathways for water infiltration, especially in New Zealand’s unpredictable weather conditions. Choosing the correct flashing profile ensures effective water management, preventing leaks, and structural damage due to heavy rain and storms

At STM Roofing and Scaffolding, we provide custom metal flashing profiles tailored to your roof’s design, whether it’s a standard residential installation or a complex commercial project. We make sure the flashings will seamlessly integrate with your home’s exterior architectural profile and provide long-lasting weather protection for your property.

Check out our metal flashing NZ solutions

Contact us today to learn more about our metal flashing NZ solutions.

Thames-Coromandel Hauraki - Matamata-Piako - Western Bay of Plenty - Hamilton and North Waikato

Thames-Coromandel Hauraki - Matamata-Piako - Western Bay of Plenty - Hamilton and North Waikato

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