How Does Flat Roofing Work?
Understanding the functionality of flat roofing systems is crucial for making informed decisions about installation, repair, and maintenance. Let’s break down the key components and principles behind flat roofs:
Structure and Design
Contrary to traditional pitched roofs, flat roofs have a minimal slope, allowing for a clean and modern aesthetic. The design focuses on maximizing usable space while addressing the challenges posed by Tucson’s climate.
Decking Material
The foundation of a flat roof is the decking material, typically made of plywood or oriented strand board (OSB). This provides the structural support for the roof.
Insulation Layer
An essential component, the insulation layer regulates indoor temperatures and contributes to energy efficiency. It helps prevent heat gain in the scorching Tucson summers and heat loss during cooler periods.
Membrane or Roofing Material
Flat roofs often use membranes or specialized roofing materials, such as modified bitumen or self-adhered membranes. These materials provide a seamless, watertight barrier against the elements.
Drainage Systems
Proper drainage is critical for flat roofs. While they are called “flat,” they do have a slight slope to facilitate water runoff. Additionally, the installation of drainage systems, such as scuppers or internal drains, ensures effective water removal.
Weather-Resistant Coatings
To enhance durability, weather-resistant coatings are applied. These coatings protect the roofing material from UV rays, extreme temperatures, and heavy rainfall.
