Effective maintenance of roofs with Köster TPO membranes

 

Waterproofing with Köster TPO membranes is a highly efficient and long-lasting solution for roofing, ensuring protection against leaks and external elements.

 

However, like any protection system, it requires proper maintenance to ensure long-term security. In this guide, we explain the best practices for preserving the integrity of your roof, avoiding failures, and extending the lifespan of the membranes.

 

 

 

Regular inspections: the key to a safe roof

 

Two annual inspections – one in spring and another at the beginning of autumn – are essential to identify potential problems before they become critical. These visits should focus on the following aspects:

 

• Surface Cleaning: the accumulation of debris can cause blockages and premature wear. Only use soft brooms and avoid sharp objects. For cleaning, the best option is to use water only.
• Visual Roof Inspection: critical areas such as welding seams, gutters, outlets, downpipes, trim profiles, liquid membrane edges, and duct seals should be carefully checked to prevent leaks.

 

 

• Checking Seals with Silicones or Mastics: even if they are outside the waterproofed area with membranes, such as fixed elements on walls, antenna supports, or other equipment, they can cause leaks that affect the roof.
• Analysis of Roof Components: fans, skylights, and chimneys can compromise water tightness if not properly maintained.

 

 

The autumn inspection is particularly important because it coincides with the end of the dry season and the beginning of leaf fall, which increases the risk of drainage system blockages.

 

 

Solar reflection: the invisible danger

 

Reflective metallic elements, such as ventilation ducts, can amplify sunlight, increasing the risk of membrane deterioration. To prevent this:

• Paint metallic surfaces with matte paint, reducing reflection.
• Protect the membrane with slabs in exposed areas.

The example of the “Walkie Talkie” building in London, whose glass facade reflected enough heat to melt cars, illustrates the effects that sunlight can have on inadequately protected materials.

 

 

 

Maintenance of lifelines

 

Safety is a critical factor in any intervention on a roof. Lifelines should be inspected annually to ensure their certification and proper operation. Don’t forget:

• Check the fixation points and the waterproofing sealing systems to the posts.
• Replace damaged components as quickly as possible if found.

 

 

Precautions during and after roof work

 

Not all interventions on the roof are safe for TPO membranes. To avoid damage, keep in mind:

• Avoid using grinders or cutting tools near the membrane.
• Protect the surface from chemical spills.

 

Any alterations involving perforations, such as the installation of ducts or equipment, should be done by professionals from Prudêncio to ensure proper integration with the waterproofing system.

 

 

 

What not to do

• Smoking or creating fire on the roof.
• Accumulating heavy materials on the membrane and roof without prior protection and load study.

 

Prevention today, safety tomorrow

Keeping a Köster TPO waterproofed roof in excellent condition is simple, but it requires attention and prevention. Following this maintenance manual ensures the system’s durability, prevents leaks, and reduces future repair costs.

 

At Prudêncio, we specialize in high-performance waterproofing solutions. If you need an evaluation or rehabilitation of your roof, contact us to ensure the safety of your property!

 

If you’ve found this topic interesting, we recommend that you complement your reading with our article: Why are Köster TPO membranes the most suitable for waterproofing?