Case Study: Gutter Waterproofing Project

Project Overview - Gutter Waterproofing

The St. Peter the Apostle Parish Church in Paco, Manila is a well-known religious structure serving both Filipino and Chinese communities, with a history dating back to the mid-20th century parish establishment. Due to its age and continuous exposure to heavy rainfall, the church experienced recurring gutter leakage issues affecting interior ceilings and wall finishes.

Identified Problems

• Water seepage from deteriorated gutter joints

• Overflow during heavy rains

• Ceiling stains and localized interior damage

• Aging waterproofing system no longer effective

  
  

These issues are common in older church structures where drainage systems are exposed to constant weather stress.

Waterproofing Scope of Work

Our team implemented a comprehensive gutter waterproofing system, including:

• Surface preparation and cleaning of existing gutters

• Crack and joint treatment

• Application of liquid-applied polyurethane (PU) waterproofing membrane

• Reinforcement of critical joints and corners

• Final sealing for long-term water resistance

This system ensures a seamless, flexible barrier—ideal for complex roof layouts like churches.

Results & Performance

• Eliminated active gutter leaks

• Improved water flow and drainage efficiency

• Prevented further ceiling and wall damage

• Extended the lifespan of the roof drainage system

The project provided a long-term waterproofing solution, reducing maintenance needs for the parish.