Refresh faded tiles or metal sheet, improve weather resistance and dial in cooler roof temperatures with the right primer + membrane + topcoat system. Paintworld’s Roofing range covers penetrating primers, sealers, roof membranes and heat-reflective finishes so you can restore colour, improve durability and help rainwater flow properly. Browse all Roofing products to compare systems and colours

Choose the Right System for Your Roof

Tile & Concrete Roofs (porous/powdery)
Start with a deep-penetrating primer to consolidate the surface, then finish with a roof membrane/topcoat.

• Primer picks:  Nu-Prime Penetrating Primer; Nutech Master Sealer.

• Membranes/finishes: Nutech Tileflex (gloss durable finish); FlexiShield (low sheen/matt options).

Metal Roofs (Colorbond®/galvanised)
Use a metal-specific primer for adhesion and corrosion control before finishing coats.

• Primer pick: Nutech Metal Primer (designed for metal substrates). 

Cool-Roof / Heat-Reflective Upgrade
Looking to reduce heat load? Choose a cool-roof topcoat formulated for thermal reflectance.

• Finish pick: Nutech NXT Cool Zone (heat-reflective roof coating with colour options).

Special Case — Asbestos Roofing (legacy roofs)
Sealing should be handled with extreme care and in line with local regulations.

• Specialist sealer: Nutech Asbestos Sealer (read product guidance and compliance notes; consider professional application).

General purpose primer option: Nutech GP Primer can be paired with compatible topcoats per listing.

What You’ll Notice with a Matched Roof System

• Stronger adhesion & durability when primers are matched to substrate
  

• Improved colour retention & gloss (membrane/topcoat technology)
  

• Better water shedding and reduced chalking/powdering
  

• Heat-reflective comfort with cool-roof finishes (colour-dependent) 

Buyer’s Checklist — Get the Spec Right First Time

1. Identify substrate: tile/concrete vs metal; check for powdering, rust or lichen.
   
2. Pick the primer:
   
   • • Powdery tiles/concrete →Nu-Prime / Master Sealer.
     • Metal → Metal Primer.
3. Select membrane/topcoat: Tileflex, FlexiShield or your preferred compatible finish.
4. Cool-roof option? Consider NXT Cool Zone colours for heat-reflective performance.
5. Weather & prep: plan for clean, dry conditions; pressure-wash and repair cracks before coating (see individual product pages for prep).
   
6. Coverage & colour: confirm litres and colour availability on the product page prior to start.

Practical Tips from the Trade

• Clean first, then prime—a clean, sound surface saves topcoat litres and improves finish quality (see primer product notes).

• Mind edges & flashing—metal details often need Metal Primer even on mixed roofs. 

• Plan your cool-roof shade—lighter colours generally reflect more heat; check NXT Cool Zone colour card on the listing. 

Featured Roofing Products (quick links)

• Nu-Prime Penetrating Primer — for powdery tiles/concrete. Paint World

• Nutech Master Sealer — adhesion-promoting sealer for porous tile surfaces. Paint World

• Nutech GP Primer — general purpose primer (check compatibility). Paint World

• Nutech Metal Primer — for metal roofs and flashings. Paint World

• Nutech Tileflex (Gloss) — durable roof coating for tiles. Paint World

• Nutech FlexiShield (Low Sheen/Matt) — roof coating finishes. Paint World

• NXT Cool Zone (Gloss) — heat-reflective topcoat with wide colour range. Paint World

• Nutech Asbestos Sealer — specialised sealer; follow regulatory guidance. Paint World
  
  

Roofing FAQs

Do I always need a primer?
Yes—primers are selected for substrate and condition. Powdery tiles benefit from Nu-Prime/Master Sealer; metal requires Metal Primer for adhesion/corrosion control. Paint World+2Paint World+2

What’s the difference between a roof “membrane” and “paint”?
“Membrane” systems are high-build, flexible coatings designed for exterior roof service with better durability and weathering than standard paints; see Tileflex/FlexiShield listings for properties. Paint World+1

Will cool-roof coatings make my house cooler?
They’re engineered with heat/solar-reflective technology to help reduce roof surface temperature versus standard dark colours. Results vary by colour, substrate and climate—check NXT Cool Zone details. Paint World

Can I seal an old asbestos roof?
Specialist products exist (e.g., Nutech Asbestos Sealer), but follow local laws and consider a licensed professional for handling and application. Paint World

How much product do I need?
Check the coverage on each product page and allow for extra on rough/porous areas, ridge cappings and repairs (see product listings). Paint World