VANTAGE Windows & Doors
Roofing Industries
ALTHERM Window Systems
Dimond Roofing
Juralco Aluminium
dormakaba
Case Studies
Austaron Surfaces
Hettich 
JESANI
Energy efficiency is not just about keeping heat in; it is also about ensuring that the building performs as designed over time. When moisture enters areas it shouldn’t, particularly within floors and walls, it can significantly reduce the effectiveness of insulation. Wet insulation can lose a substantial portion of its thermal resistance, leading to increased energy demand and reduced comfort for occupants.
Wet areas such as bathrooms are a common source of internal moisture risk. On many construction sites, drainage systems are still formed and adjusted on site, relying heavily on manual accuracy. Incorrect falls, poorly installed channels, or non-compliant systems can result in water escaping beyond the intended drainage zone. These issues are often not immediately visible but can lead to long-term performance problems within the building envelope.
This is where well-designed drainage systems play an important supporting role.
Jesani drainage systems are developed from real on-site challenges, with a focus on compliance, simplicity, and long-term reliability. By eliminating the need for on-site modification and guesswork, Jesani helps ensure that water is effectively captured and directed as intended. This reduces the risk of leaks and protects surrounding building elements from moisture exposure.
Consistency in installation also means fewer callbacks and less rework, supporting more efficient construction processes and reducing unnecessary material waste.
While drainage is not typically associated with energy efficiency, its role in protecting the building envelope is critical. A high-performing home relies on all systems working together — not just insulation and glazing, but also the unseen elements that prevent failure.
Jesani is designed to comply, designed to protect, and designed to be simple — helping ensure that the performance intended under H1 is maintained long after construction is complete.
Popular Products from JESANI
Most Popular
Popular Blog Posts
