Waterproofing of Terraces and Roofs - Judicial Expert of the Construction Industry

Waterproofing Terraces and Roofs: The Ultimate Solution to Avoid Dampness and Leakage

Did you know that terraces and roofs are one of the main sources of leaks in buildings? A 15% of moisture problems in homes and homeowners' associations originate in these areas. The waterproofing of terraces and flat roofs is not only an investment in protection, but also in energy efficiency, durability and the value of your property. In this article, we will explain why it is crucial to waterproof these areas, how to detect problems early and the most innovative solutions available.

If you are looking for exclusive and highly relevant information on waterproofing that is not yet widely available on the internet, read on!

What is Terrace and Roof Waterproofing?

The waterproofing of terraces and flat roofs consists of the application of specific systems designed to prevent water ingress on these exposed surfaces. This process includes cleaning, repairing cracks, applying waterproofing membranes or special coatings, and installing appropriate drainage systems.

The main objective is to protect the building from leaks, to extend the life of the structures and to improve indoor comfort.

Why is it crucial to waterproof your terraces and roofs?

Many homeowners ignore the condition of their terraces and roofs until they are faced with serious problems such as damp, spalling or even structural damage. Here are the key reasons to prioritise this intervention:

1. Leak Prevention:
   Proper waterproofing prevents water from penetrating the building, causing damage to roofs, walls and internal structures.
2. Structural Protection:
   Leaks can corrode materials such as concrete or steel, compromising the integrity of the building.
3. Now Energetic:
   A well waterproofed roof reduces thermal losses, optimising heating and air conditioning consumption.
4. Regulatory Compliance:
   Many cities require terraces and roof terraces to comply with safety, accessibility and energy efficiency regulations.
5. Increase in the value of the property:
   A modern and effective waterproofing system increases the attractiveness and market value of your property.

Common Problems Solved by Waterproofing

Here we show you some of the most frequent problems that terrace and roof waterproofing tackles:

1. Water Leaks:

• CausesMembrane ruptures, cracks in the concrete or lack of adequate slopes.
• SolutionApplication of waterproofing membranes and efficient drainage systems.

1. Dampness in Lower Ceilings:

• CausesWaterproofing failures allowing water to penetrate to lower floors.
• Solution: Complete repair and application of protective coatings.

1. Degradation of Materials:

• CausesConstant exposure to water, sun and temperature changes.
• SolutionUse of resistant materials and protective finishes.

1. Water Accumulation (Ponds):

• CausesLack of adequate slopes or inefficient drainage systems.
• SolutionDesign of slopes and placement of strategic drains.

1. Detachment of cladding:

• Causes: Deficient adhesion or ageing of materials.
• SolutionCleaning and complete renovation of coatings.

Unique Benefits of Waterproofing

These are some little known but highly relevant benefits of terrace and roof waterproofing:

1. Access to Rehabilitation Grants:
   Many administrations offer financial support for projects that improve energy efficiency or solve structural problems.
2. Neighbourhood Conflict Reduction:
   Solving common problems such as leaks on shared roofs promotes better coexistence between neighbours.
3. Adaptation to Extreme Climates:
   Waterproofing protects surfaces from heavy rain, snow or prolonged exposure to the sun.
4. Aesthetic Modernisation:
   Decorative finishes such as reflective paints or textured coatings significantly improve the appearance of terraces.
5. Compatibility with Sustainable Technologies:
   Waterproofing allows the integration of systems such as vertical gardens, solar panels or rainwater harvesting.

Unique Cases Where Waterproofing Makes the Difference

Discover little explored but highly relevant situations where waterproofing is indispensable:

1. Buildings Historic or Protected:
   It is possible to waterproof without altering the heritage value of the building, using techniques compatible with its original structure.
2. Homeowners' Communities with Shared Rooftops:
   Integral waterproofing drastically reduces community costs and improves coexistence between neighbours.
3. Third Party Damage Litigation:
   A detailed technical report can resolve disputes between owners or with third parties responsible for the damage.
4. Integral Rehabilitation of Old Neighbourhoods:
   Retrofitting rooftops can revitalise blighted urban areas, increasing the market value of all properties.

Steps to Successful Waterproofing

To ensure optimal results, follow these key steps:

1. Technical Diagnostics:
   Hire a certified professional to assess the current condition of the terrace or roof to detect hidden problems.
2. Selection of Materials and Techniques:
   Opt for durable materials and advanced technologies, such as liquid membranes, bituminous sheets or SBS systems.
3. Project Planning:
   Define clear objectives (waterproofing, aesthetics, technology) and draw up a tight budget.
4. Professional Execution:
   Trust in specialised companies with experience in waterproofing to guarantee quality work.
5. Subsequent Maintenance:
   Establish a regular maintenance plan to ensure long-term performance.

How much does it cost to waterproof a terrace or roof terrace?

The cost varies depending on the size of the surface, the materials used and the initial conditions. Here is a general estimate:

• Basic Waterproofing (liquid membrane or bituminous sheet): Between €30 and €60/m².
• Advanced Systems (SBS, PVC or TPO films): Between €60 and €120/m².
• Comprehensive Rehabilitation (including structural repairs): More than €120/m².

It is important to request several quotes and compare offers before making a decision.

Conclusion: Your Terrace or Rooftop, Your Best Protection

The waterproofing of terraces and flat roofs is not just a technical necessity, but a strategic investment that protects your property, optimises resources and ensures the safety of all occupants. Whether you need to solve urgent problems, comply with regulations or modernise your building, this process offers comprehensive solutions that will make a difference.

Don't wait for problems to escalate. Contact a certified professional today and find out how you can transform your property into a safe, efficient and sustainable space.

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