DB cavity grille 70 mm – Optimal Protection and Ventilation for Your Cavity Wall
The DB Perp Vent Grille 70 mm is designed for maximum durability, clamping strength, and a clean finish. Thanks to its clever design and the use of high-quality stainless spring steel, this grille provides a long-lasting, maintenance-free solution for closing open perp joints without compromising ventilation.
Key benefits:
  
Versatile application: Fits effortlessly into open perp joints from 6 to 24 mm wide – suitable for virtually all common joint sizes.
  
Superior clamping force: The stainless spring steel ensures a strong, lasting grip so the grille stays firmly in place once installed.
  
Available in multiple heights: Supplied in 50 mm and 70 mm versions for a perfect fit in any situation. Can easily be trimmed to size with tin snips if required.
  
Neat, seamless finish: The rounded front sits flush in both straight and slightly uneven or irregular joints, blending aesthetically into the façade.
  
Maintains ventilation: The design guarantees open airflow within the cavity, essential for moisture control and the longevity of the wall construction.
  
Easy installation: A clean perp joint is all that’s needed – remove excess mortar and press the grille firmly into place, no extra tools required.
Why choose the DB Perp Vent Grille?
Compared to standard grilles, the DB Perp Vent Grille offers a much wider range of applications, higher clamping strength, and a more refined finish. It resists deformation, provides reliable fastening, and remains fully functional in all weather conditions.