Metal Roof Waterproofing & Repaint in Greenside

Location: Greenside, Johannesburg
Service: Metal Roof Sheeting Maintenance & Waterproofing

IBR metal roofs are common across Johannesburg North, and they age in a predictable way: years of sun and summer storms eat into the coating, screw fixings work loose, and rust starts spreading across the sheeting. The case study below shows how a corroded metal roof like this gets properly restored using the SealPro system.

The problem with a corroded metal roof

On a typical neglected IBR roof, close inspection reveals widespread surface rust across the sheeting, with some sections corroded through to the point of small perforations along the pans and ribs. Screw fixings, flashings, and joint lines fail over time, leaving the roof vulnerable to leaks during heavy rain. Barge boards along the roofline often show rot too, and need structural attention before any coating work can begin.

The Prime Seal Spray solution

As an approved SealPro applicator, Prime Seal Spray follows a proven maintenance sequence suited to corroded IBR sheeting:

  1. High-pressure wash the full roof area to strip loose rust, dirt, and old coating residue, followed by degreasing.
  2. Rust conversion on all corroded sections, chemically neutralising active corrosion before it can continue eating into the metal.
  3. Barge board repairs, replacing rotten timber purlins and sprockets and securing and realigning the existing barges.
  4. Priming, sealing the treated metal with Purple Prime to lock down the converted rust and create a stable base for the topcoats.
  5. Waterproofing the screw lines, joints, and flashings with ScrewSeal, closing off the specific points where a roof like this typically lets water in.
  6. Two coats of premium roof paint, a SealPro Cool Roof coating system that both protects the sheeting long-term and helps reflect heat, plus a matching repaint of the barge boards.

The result

A roof treated with this system goes from patchy, perforated rust to a uniform, fully sealed metal roof in a clean, durable finish. Every screw line and joint that was a leak risk is waterproofed, rotten barge timber is replaced and resecured, and the whole structure is protected against further corrosion for years to come.

Prime Seal Spray is an approved SealPro applicator serving Greenside and the greater Johannesburg North area.

Related Prime Seal Spray services: roof waterproofing · roof painting · waterproofing & painting across Johannesburg North.

Contact Prime Seal Spray for a free inspection and quote: 064 879 3553 · primesealspray.co.za

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