Ventilated ceramic tile roofs: efficiency and durability in energy renovation
Ventilated ceramic tile roofs are positioned as one of the most efficient construction solutions for energy rehabilitation, combining continuous insulation, waterproofing, and dry-installation systems. The SIATE system by Onduline and the Eternal mixed tile by Tejas Verea exemplify this approach, with the latter achieving a certified durability of up to 1,000 freeze-thaw cycles. The Verea System holds Passive House certification and DIT Plus 622p/22 technical approval. The Eternal tile is fired at over 1,150°C on H-Cassette supports, resulting in water absorption below 5% and maximum flatness. A new video by both companies demonstrates the step-by-step installation of the ventilated roof system.
Key facts
- Ventilated ceramic tile roofs create an uninterrupted air chamber between insulation and outer covering.
- The SIATE system (Sistema de Impermeabilización y Aislamiento Térmico Exterior) resolves thermal bridges and filtration.
- Onduline Bajo Teja DRS asphalt plates provide waterproofing and micro-ventilation channels.
- Verea System uses dry fixation without mortar, allowing natural material movements.
- Verea System is certified as Passive House and holds DIT Plus 622p/22.
- Eternal ceramic tiles are fired individually at over 1,150°C on H-Cassette supports.
- Eternal tiles have certified durability of 1,000 freeze-thaw cycles and water absorption below 5%.
- A new video by Onduline and Tejas Verea shows the installation process.
Entities
Institutions
- Onduline
- Tejas Verea
- Passive House
Locations
- Spain
Sources
- Veredes —