It’s no secret that Bali’s tropical climate can be both a blessing and a curse. While we enjoy the lush greenery and warm weather, the heavy rainfalls can expose vulnerabilities in our homes, particularly leaky roofs. If you’re a homeowner in Bali, you’ve likely encountered this problem, or are preparing to, and understand that a leaky roof isn’t just a minor annoyance—it can lead to significant damage and frustration.

Why Are Leaky Roofs So Common in Bali?

Several factors contribute to the prevalence of leaky roofs in Bali:

• Handmade Roof Tiles: Many homes utilize handmade roof tiles, which, due to slight variations in size and shape, often don’t interlock perfectly, allowing water to seep through.
• Inaccurate Lathe Spacing: When installing roof tiles, the spacing of the supporting lathes is often imprecise, causing some tiles to seat improperly.
• Lack of Waterproof Membrane: A key issue is that standard building practices in Bali frequently omit a waterproof membrane (sarking or underfelt) beneath the roof tiles, which is a critical barrier against water intrusion.
• Concreted Ridges: The heavy concrete used to secure ridges can easily crack with even slight house movements, creating pathways for leaks.
• Poor Wall Waterproofing: Inadequate sealing where the roof meets the end walls is another common entry point for water.
• Insufficient Roof Slope: Roofs without enough slope are vulnerable to wind-driven rain forcing water up and under the tiles.
• Lack of Understanding of Water Dynamics: Unfortunately, many builders, or tukangs, may not fully grasp how water behaves, leading to inadequate construction and repair methods.

It’s also important to note that many roof tiles in Bali are fired at low temperatures, making them fragile and prone to breakage. This can result in further damage when people climb on the roof for repairs, highlighting the importance of hiring experienced professionals.

The Impact of Leaky Roofs

A leaky roof can have detrimental effects on your home and your well-being:

• Structural Damage: Water damage can compromise the integrity of your roof, walls, and other structural elements.
• Interior Damage: Leaks can damage ceilings, walls, floors, and furniture.
• Mould and Mildew: Constant moisture can lead to the growth of mould and mildew, which can be harmful to your health.
• Emotional Distress: Dealing with leaks can be incredibly stressful and frustrating for homeowners.

Practical Steps to Address Leaky Roofs

Prevention is Better than Cure

If you’re building a new house, prioritize these steps to prevent future leaks:

• Install a Waterproof Membrane: Ensure a waterproof membrane is installed under the roof tiles, creating a critical layer of protection.
• Proper Installation: Pay close attention to the accurate installation of your roof, including tile placement and support structures.

Repairing Existing Leaks

If you’re dealing with a leaky roof, here’s what you should do:

• Identify the Source: Carefully note the location of the leaks. This will help in targeting the problem areas.
• Professional Assistance: Be cautious about who you hire to work on your roof. Poor repairs can worsen the situation.
• Address Wall and Ridge Leaks: Leaks near walls or ridges often require waiting for dry weather to properly seal.
• Tile Adjustment: Central roof leaks might be fixed by adjusting or replacing tiles. However, keep in mind that the roof tiles can be fragile.

Comprehensive Waterproofing

For badly leaking roofs, a more thorough approach is recommended:

• Complete Tile Removal: Remove the existing tiles, preserving them carefully.
• Waterproof Membrane Installation: Install a high-quality waterproof membrane.
• Tile Replacement: Replace the existing tiles, ensuring they are properly placed and sealed. Replace any broken tiles and consider painting the tiles to add an extra layer of protection.

While there are other roof options such as “Colourbond”, these are often more expensive, so using existing tiles with proper waterproofing may be a more economical solution.

Conclusion

Leaky roofs are a significant concern for homeowners in Bali. However, by understanding the common causes and taking preventative and proactive measures, you can protect your home and avoid the headaches associated with water damage. Don’t let a leaky roof disrupt your peace of mind. Take action to ensure your home is protected.