Mortar falling from your ridges is not a cosmetic problem. Cracked ridge beds let water directly into your roof structure, and by the time you see the ceiling stain, water has been running inside for months. We see this constantly in the older tiled suburbs around Pretoria’s Union Buildings and the established northern suburbs of Johannesburg. Call 081 016 3479 and book a free inspection.
When You Need Ridges Waterproofing
Your ridge needs waterproofing attention when you see mortar debris in your gutters, ridge tiles that have shifted or lifted, open gaps between ridge tiles visible from the ground, or ceiling stains that appear directly below the ridge line during or after rain. Ridge mortar cracks due to temperature cycling, the ridge is the highest, most exposed point of the roof, where thermal movement is greatest. Once mortar is cracked, wind and rain drive water into the gap and straight down the roofing felt or boards below.
Our Ridges Waterproofing Process
We remove cracked or hollow mortar from the ridge bed and joints. Loose or displaced ridge tiles are re-bedded in fresh cement mortar and repointed to close all joints. Where ridges have been sealed with an incompatible product in the past, this is removed first. After curing, a flexible ridge sealant is applied to all pointing joints, providing a waterproof and flexible bond that accommodates further thermal movement. We also check and seal hip ends at the same time.
Cost of Ridges Waterproofing in Gauteng
Ridge waterproofing cost depends on roof length, number of hips, and degree of mortar deterioration. Some roofs need full re-bedding; others need repointing only. Free assessment and written quote with no hidden fees.
Why Choose Logiline for Ridges Waterproofing
Licensed and insured. Workmanship Warranty. We’ve found that ridge defects account for the majority of tile roof leaks in Gauteng, it’s one of the most common jobs we do, and one of the most cost-effective fixes when caught early. We serve all of Gauteng.
Common Questions
How often should ridge mortar be replaced?
Can silicone fix cracked ridge mortar?
What are signs that ridge mortar has failed?
Mortar falling from your ridges or a ceiling stain appearing after rain? Call 081 016 3479 for a free ridge inspection.
← Back to Roof Waterproofing | All Services
Further reading: waterproofing, building waterproofing materials and techniques.