HSV Ltd

<p>Health &#038; Safety conscious, BS compliant, simple, super-effective, extremely cost effective,<br /> retrofittable, externally invisible. The standard lapVent roof ventilator and its extractor terminal<br /> version reigns supreme. If ignored, condensation in enclosed unvented roof-spaces attacks<br /> vulnerable infrastructure remorselessly destroying substructural material. The lapVent system<br /> delivers a restorative, unmatched 20,000mm2 fully guarded, natural free-airflow.<br /> To better preserve our built environment lapVent technology provides a positive, completely hidden<br /> vent in unsealed, free-laid slate/tile pitched roofs. Not only serving the professional trades, also<br /> catering to DIY schemes. Slate, stone, clay, and concrete, etc., it is all the same to a genuine,<br /> ultra-unobtrusive lapVent. </p> <p>www.lapvent.co.uk</p>