Water intrusion is one of the most common and costly issues in building construction, often causing hidden damage long before it becomes visible. When moisture finds its way behind stucco or manufactured stone veneer, it can trigger mold growth, rot the underlying structure, and compromise insulation performance. Even minor leaks can lead to thousands of dollars in repairs, lower energy efficiency, and serious indoor air quality concerns. The most effective approach is to prevent water from becoming a problem in the first place. That’s where the DELTA®-DRY Stucco & Stone Ventilated Rainscreen delivers a best-practice solution for moisture control and long-term durability.

Stucco and stone claddings are valued for their timeless appeal and durability, but they are also highly absorptive materials. This means they can take in water from rain, snow, or even humidity. The problem worsens when moisture becomes trapped between the cladding and the wall sheathing. Without an air gap for drainage and ventilation, that moisture lingers, leading to deterioration. Solar-driven moisture makes the situation worse—when the sun heats the cladding, absorbed water can be pushed inward toward the sheathing and framing. Without a way for this moisture to escape, the damage can be severe.

The DELTA®-DRY Stucco & Stone Ventilated Rainscreen is designed specifically to combat these challenges. Its 3-dimensional HDPE membrane features unique dimples and grooves that create a dual-sided drainage and ventilation plane. The exterior side allows any water that penetrates stucco or stone to drain quickly, while the interior side maintains an air gap against the water-resistive barrier, enabling the wall to dry from the inside out. This dual-chamber design gives moisture multiple escape routes, which is essential for protecting the structure.

A key benefit of the DELTA®-DRY system is its ability to create a complete capillary break. This prevents water from moving into the wall assembly through capillary action, a process where moisture can travel through materials even against gravity. Additionally, the rainscreen resists solar-driven moisture, acting as a vapor-resistant shield that stops inward water movement caused by heated cladding. The system also includes a factory-installed polypropylene mortar screen that keeps stucco or stone mortar from clogging the drainage channels. This ensures that the drainage plane remains functional for the life of the building.

If you want your building to stand the test of time, choose a moisture management system that works as hard as you do. The DELTA®-DRY Stucco & Stone Ventilated Rainscreen offers complete protection, from stopping wind-driven rain to resisting solar-driven moisture, all while ensuring that any water that gets behind your cladding can drain and dry efficiently.

Order Now to protect your building envelope with a proven solution that delivers lasting results.