Introduction
In hot climates such as Southeast Asia, the Middle East, and Africa, buildings are constantly exposed to:
• intense solar radiation
• high temperatures
• UV degradation
Traditional roofing systems absorb heat, leading to:
• higher indoor temperatures
• increased energy consumption
• faster material aging
This is why cool roof systems are becoming a key solution in modern construction.
What Is a Cool Roof?
A cool roof is a roofing system designed to reflect more sunlight and absorb less heat compared to standard roofs.
This is achieved through materials with:
• high solar reflectance
• high thermal emissivity
👉 Result:
• lower roof surface temperature
• improved indoor comfort
• reduced cooling costs
Why Cool Roof Waterproofing Matters
A high-performance cool roof system must not only reflect heat but also provide:
• reliable waterproofing
• UV resistance
• durability
👉 This is where integrated waterproofing solutions play a critical role.
OYH Cool Roof Solutions Overview
OYH offers a complete cool roof system, combining:
• self-adhesive membranes
• liquid-applied coatings
👉 Designed to meet different project needs and budgets.
Solution 1: Self-Adhesive Cool Roof Membranes
Products:
• YHCoolRoof-2008 (5–8 years)
• YHCoolRoof-2010 (10 years)
• YHCoolRoof-2020 / 2020BR (up to 20 years)
Key Features:
✔ Solar reflectance > 85%
✔ UV resistance
✔ heat resistance
✔ flexible (down to -20°C / -40°C)
✔ self-sealing around nails
✔ durable bonding
Advantages:
• easy installation (no torch required)
• fast application
• suitable for exposed roofing systems
👉 Ideal for:
• renovation projects
• residential and commercial roofs
• fast-track construction
Solution 2: Liquid-Applied Cool Roof Coatings
Products:
• YHColorWall-5300 (water-based polymer coating)
• YHColorWall-8108 (water-based PU coating)
• YHMSCoat-8023 (silicone-modified coating)
Key Features:
✔ solar reflectance > 80% (white coating)
✔ seamless waterproofing
✔ low VOC and eco-friendly
✔ easy application (roller / sprayer / trowel)
✔ fast drying
Advantages:
• ideal for complex roof shapes
• no seams → reduced leakage risk
• suitable for refurbishment
👉 Perfect for:
• metal roofs
• irregular surfaces
• maintenance projects
Solution 3: TPO Cool Roof Membrane System
Products:
• PMT-3030P Reinforced TPO membrane
• PMT-3020L Fleece-backed TPO membrane
Key Features:
✔ solar reflectance > 80%
✔ excellent UV resistance
✔ long service life
✔ strong mechanical performance
Installation Systems:
• fully adhered system
• mechanically fastened system
Advantages:
• suitable for large-scale projects
• long-term durability
• compatible with insulation systems
👉 Ideal for:
• industrial buildings
• warehouses
• commercial roofing
Key Benefits of OYH Cool Roof Systems
✔ Energy Efficiency
Reduce cooling costs by reflecting sunlight
✔ Waterproof Protection
Ensure long-term resistance to water penetration
✔ UV & Heat Resistance
Protect roofing materials from aging
✔ Easy Application
Multiple installation options for different project needs
✔ Sustainability
Low VOC, environmentally friendly solutions
How to Choose the Right Cool Roof Solution
Choose Self-Adhesive Membranes when:
• fast installation required
• exposed roof system
• renovation projects
Choose Liquid Coatings when:
• complex roof geometry
• need seamless waterproofing
• maintenance or repair
Choose TPO Membranes when:
• large commercial or industrial projects
• long-term performance required
• high-end roofing systems
👉 A combination of solutions can provide optimal performance.
Typical Applications
OYH cool roof systems are widely used in:
• factories and warehouses
• shopping malls
• residential buildings
• public infrastructure
Summary
Cool roof systems are no longer optional — they are a smart investment for energy efficiency and durability.
With OYH solutions, you can achieve:
• lower energy consumption
• improved waterproofing
• longer roof lifespan
👉 All while maintaining easy installation and cost efficiency.
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