The TVA is an unobtrusive semi-recessed plastic ventilator that fits over a 16mm slot in a timber window. The TVA is specifically designed for high performance timber windows and is ideal for both new build or refurbished situations. It’s available in white, brown or grey. The TVA, when fitted correctly seals extremely well when closed whilst offering a higher EA than most other similar vents available. For compliance with Building Regulations in England and Wales, the TVA 389 provides an Equivalent Area (EA) of 4300mm2 when fitted with the Hi Flow 411 canopy.
At Coastal, we understand just how important our customers are to our business.
Core to this is listening to them and working with our manufacturing partners to proactively select and bring quality products and new solutions to the market wherever we can. With a constant focus on increasing longevity and added value to the external doors and windows market, backed up with a dedicated customer service that includes site, telephone and online support whenever it is needed, Coastal Specialist Ironmongery Ltd is setting the standard for quality.