TPO Membrane – Install & Repair

Canseal – Reliable Waterproofing & Repair Solutions

WHY CHOOSE TPO MEMBRANES

TPO (Thermoplastic Polyolefin) membranes are one of the most durable and UV-resistant roofing systems available today. Ideal for flat and low-slope roofs, they offer superior flexibility, heat-welded seams, and long-term performance in New Zealand’s changing climate.

INSTALLATION & REPAIR PROCESS

Substrate is cleaned and inspected for moisture or damage
Insulation board or recovery board installed if needed
TPO sheets are heat-welded to create a seamless waterproof layer
Edges, seams, and penetrations are detailed for maximum protection

BENEFITS

UV-stable and energy-efficient
Resistant to punctures, algae, and chemical exposure
Low-maintenance and recyclable
Long service life with minimal upkeep

WHY CANSEAL

Our team specialises in TPO installation and maintenance across Christchurch. We work with top-grade products and proven methods to deliver leak-free results backed by warranty and performance.

Ready to Stop Leaks?

Don’t let water damage compromise your home or business. Contact Canseal today for professional waterproofing repairs in Christchurch.

📞 Book your inspection now and protect your property with a solution that lasts.

Christchurch • Canterbury

TPO Membrane – Install & Repair

UV-stable, heat-welded single-ply roofing systems for flat and low-slope roofs. Clean detailing, durable performance, and easy maintenance — ideal for Canterbury’s climate.

How It Works Get a Quote

How we work

TPO Installation & Repair Process

Inspection & Preparation

Full roof survey — slopes, drains, edges, and substrate condition
Surface cleaning, primer where needed, and substrate repair
Fixing cracks, fasteners, and damaged decking before installation

Installation

Sheets laid with precise overlaps for welding
Hot-air welded seams ensure long-term watertight integrity
Detailed flashings at edges, corners, outlets, and penetrations

Repairs & Upgrades

Clean area, abrade lightly, and apply compatible TPO patch
Re-weld fatigued seams and replace aged detailing
Final inspection, weld test, and photographic record (on request)

Outcome: A watertight, clean-looking roof that performs reliably against UV, rain, and wind — built to last.

System options

TPO System Configurations

Mechanically Fastened: Lightweight, quick, cost-effective for large roofs.
Fully Adhered: Smooth appearance with enhanced wind resistance.
Ballasted (where suitable): Uses gravel or pavers for stability and protection.

Thermal Insulation: PIR or EPS boards installed for improved efficiency.
Colour Options: Bright reflective white or neutral tones.
Accessories: TPO drains, pipe boots, trims, and flashing components.

Why it helps

Benefits of TPO Roofing in Christchurch

UV Resistance: Maintains colour and flexibility under strong sunlight.
Welded Seams: Fewer weak points than glued systems.
Low Maintenance: Simple cleaning and quick inspections.

Modern Appearance: Sleek finish around edges and outlets.
Versatile: Works on new builds, refurbishments, and retrofits.
Lightweight: Ideal for structures with limited load capacity.

Best fit

Is TPO the Right Choice for You?

Flat or low-slope roofs with solid existing substrate
Clients wanting clean detailing and long-term reliability
Projects seeking reduced maintenance and better drainage
Light structures that benefit from a low-weight system

FAQs

TPO Roofing – Common Questions

How long does a TPO roof last?

With proper preparation, installation, and maintenance, TPO systems typically deliver decades of reliable performance in New Zealand conditions.

Can my existing TPO roof be repaired?

In many cases yes — re-welding seams, patching with compatible materials, and updating flashings can restore waterproof integrity without full replacement.

Ready to protect your property?

Book TPO Membrane Installation or Repairs

Schedule an on-site assessment and receive a detailed proposal outlining system options and timelines. Servicing Christchurch and the wider Canterbury region.