Got Questions?
We've Got Answers.
From roof waterproofing costs and roof replacement to leaks, roof maintenance, coatings and asbestos encapsulation, we've answered some of the questions we hear most often from homeowners and businesses across the West Coast.
Roofing & Waterproofing
Questions Answered.
Every roof is different, and the right solution depends on the condition, construction, exposure and requirements of the property. These answers provide useful guidance, but a professional inspection is always recommended before undertaking major roofing or waterproofing work.
The cost of roof waterproofing depends on the waterproofing system required, the condition of the existing surface, preparation requirements, access and the size and complexity of the roof.
As a general guide, the following price ranges may apply:
These figures are intended as a guide only. A site inspection is required to determine the correct waterproofing system and provide an accurate quotation.
Around Saldanha, Langebaan, Vredenburg and St Helena Bay, salt air, strong UV exposure, wind and moisture can shorten the life of a roof coating.
For exposed coastal roofs, we recommend an annual inspection and maintenance, with repainting or recoating approximately every 3–5 years where required.
The key is not simply painting over the old coating. Before repainting, the roof should be cleaned, properly prepared, rust treated where necessary, repaired, primed where required, and then coated with a suitable roof coating.
A roof should be considered for replacement when repairs and maintenance are no longer providing a reliable long-term solution, or when the roof structure and covering have deteriorated significantly.
In areas such as Saldanha, Langebaan, Vredenburg and St Helena Bay, salt air and strong coastal weather can accelerate corrosion.
Metal roofs should therefore be inspected regularly, particularly when you notice:
- Significant rust or corrosion
- Repeated roof leaks
- Leaking or deteriorating fasteners
- Severely deteriorated roof coatings
- Corrosion around laps, flashings or gutters
- Damaged or rusted-through roof sheets
- Sagging or damaged roof structures
A professional inspection can help determine whether repair, waterproofing, recoating or complete roof replacement is the most suitable option.
Yes. Asbestos roofs can sometimes be encapsulated, provided the asbestos-containing material is still in a suitable condition and the work is carried out using appropriate asbestos-control procedures.
Encapsulation involves treating and sealing the asbestos-containing material so that fibres are contained and the condition of the roof can be managed without unnecessarily disturbing the material.
Whether encapsulation or removal is appropriate depends on the condition of the asbestos, the property and the specific circumstances. A professional assessment should always be carried out before work begins.
The lifespan of waterproofing depends on the waterproofing system, installation quality, preparation, exposure and ongoing maintenance.
For properties around Saldanha, Langebaan, Vredenburg and the wider West Coast, coastal salt, UV exposure, wind and temperature changes can reduce the expected lifespan. Good preparation and regular maintenance are therefore particularly important.
Torch-on waterproofing, when correctly installed on a properly prepared surface, is generally one of the longer-lasting options and can provide 10 years or more of service.
How To Make Waterproofing Last Longer
- Inspect the waterproofing at least once a year.
- Keep gutters, outlets and drainage channels clear.
- Repair damage before water gets underneath the membrane.
- Check flashing, joints and upstands regularly.
- Avoid unnecessary foot traffic and mechanical damage.
- Recoat or maintain exposed systems according to the manufacturer's requirements.
Roof leaks can have many different causes. Finding the actual source of a leak is important because water can travel underneath roof coverings before appearing inside the building.
Common causes of roof leaks in South Africa, particularly on exposed coastal properties, include the following:
Damaged or Deteriorated Roof Sheets
Rust, corrosion, holes, loose or missing screws, perished washers and wind-damaged sheets can allow water into the roof.
Failed Waterproofing
Old or cracked torch-on membranes, lifting waterproofing, poorly sealed joints and damaged parapet waterproofing can create leak points.
Blocked Gutters & Downpipes
Leaves, dust, sand and debris can prevent proper drainage. Overflowing gutters may allow water to run back underneath the roof covering.
Roof Valleys
Damaged valley flashing, blocked valleys, cracked valley membranes and insufficient drainage capacity can result in leaks.
Roof Penetrations
Chimneys, plumbing pipes, solar geysers, air-conditioning pipes, TV aerials, skylights and ventilation pipes require properly installed flashing and waterproofing.
Storm & Wind Damage
Strong West Coast winds and driving rain can loosen sheets, tiles, flashings and ridge caps, allowing water underneath.
Cracked or Broken Roof Tiles
A single broken or cracked tile can allow water into the underlay and roof structure.
Poor Roof Pitch or Drainage
Insufficient fall, low spots and sagging areas can cause water to collect on the roof rather than drain away.
Rusted or Sagging Roof Structure
Corroded purlins, rafters or roof sheeting can cause deformation and create areas where water pools.
Poor Workmanship
Incorrect overlaps, insufficient fasteners, badly installed flashing, inadequate preparation and blocked drainage outlets can cause premature leaks.
Poor Previous Repairs
Inadequate preparation or incompatible materials can cause previous repairs and waterproofing treatments to fail.
Condensation
Moisture inside a roof space can sometimes be mistaken for a roof leak and should be properly investigated.
Why Coastal Roofs Need Extra Attention
On the West Coast, salt-laden air, strong UV exposure, wind and moisture can accelerate corrosion and deterioration. Regular roof inspections and preventative maintenance are therefore particularly important for properties in Saldanha, Langebaan, Vredenburg, St Helena Bay and surrounding West Coast areas.
We recommend having your roof inspected at least once a year, particularly for properties exposed to the coastal conditions found around the West Coast.
An inspection is also advisable after severe storms, periods of heavy rainfall or when you notice signs such as water stains, rust, deteriorating coatings, blocked gutters or damaged roof sheets.
Regular inspections can identify smaller problems before they develop into expensive roof repairs or major waterproofing issues.
Coastal properties are exposed to a combination of salt-laden air, strong UV radiation, wind and moisture. Over time these conditions can accelerate corrosion, coating deterioration and general roof degradation.
This is particularly relevant in areas such as Saldanha, Langebaan, Vredenburg and St Helena Bay.
Regular cleaning, inspections, rust treatment, preventative repairs and suitable roof coatings can help protect roofing systems against the demanding coastal environment.
In many cases, yes. Whether a roof can be repaired depends on the extent of the damage, the condition of the roof structure and the age and condition of the existing covering.
Smaller issues such as leaking fasteners, damaged flashing, isolated rust, minor waterproofing failures or individual damaged tiles may be repairable.
However, where deterioration is widespread or the roof structure has been seriously compromised, replacement may provide a more reliable and cost-effective long-term solution.
Yes. Our process starts with a site inspection so that we can assess the condition of the roof and identify areas requiring attention.
Following the inspection, we can recommend the most suitable roofing, waterproofing, coating, repair or maintenance solution and provide a quotation based on the work required.
This approach helps ensure that the recommended solution is based on the actual condition of the property rather than a one-size-fits-all approach.
Let's Get Your Roof
Sorted.
If you have a leaking, damaged, ageing or poorly waterproofed roof, our team can inspect the property, assess the problem and recommend a practical solution.
Contact West Coast Roof Care