IRC - Oz Prime

Where IRC - Oz Prime fits in a roof restoration

A primer or sealer is the foundation of a roof coating system. It binds and seals the surface so the topcoat bonds properly, and the wrong choice is one of the most common reasons coatings peel early. Use IRC - Oz Prime within the IRC system it is designed for, with the matching IRC roof coatings topcoat, and follow the product data sheet for coverage, coats and drying times.

Preparation checklist

1. Clean the roof thoroughly and treat mould, moss and lichen.
2. Replace cracked tiles with matching roof tiles.
3. Rebed and repoint loose ridge caps with flexible pointing.
4. Mask gutters, walls, windows and paths.
5. Apply IRC - Oz Prime, then the topcoat, as the data sheet directs.

Spraying it

Most restorers apply primers with an airless sprayer. Check the data sheet for the recommended tip size and fit fresh filters before you start. We stock Graco spray equipment, tips, filters and hoses.

Pickup and delivery

Collect IRC - Oz Prime from our Doveton or Mulgrave yard, or order online for delivery. Delivery is free on orders over $400 within about 20 km of either yard, with a flat $70 fee for smaller orders in the same area. See shipping and delivery for the details.

Related guides

• Best roof paint for concrete tiles
• Airless spray tips for roof painting

Compare all roof primers and sealers.

IRC - Oz Prime: common questions

Can I use IRC - Oz Prime under another brand's roof paint?

Stay within one manufacturer's system. IRC primers and topcoats are designed to work together.

How many coats do I need?

Follow the product data sheet, which sets out coverage, the number of coats and drying times.

Do I need to clean the roof first?

Yes. Coating over dirt, chalky residue, moss or lichen is a common cause of early failure.