Roof Cowl Installation

Cowl or roofline vents for slate roof.

Roof cowl installation.

The vhe roof cowl can be used for air intake and ejection in both industrial and residential buildings. Roof cowls for the extraction supply of air are made of galvanized steel sheet as a standard. The cowl can be fitted with its longer side running across a slope of less than 85 degrees from the horizontal. Cowl kits are available in a wide range of sizes from 100mm up to 200mm.

Complete roofing to one course below the position for the slate vent. If the roof is sharply sloped or the chimney is very high consider hiring a professional. The bottom part is a male connector for mounting to the roof base. Never set up a ladder with its feet at different heights.

Have an assistant hold the ladder while you climb it. These fittings are for use with smaller service penetrations such as cables and smaller flexible pipes. These cowls and roof fans are designed for either kerb or purlin box mounting on a flat or inclined roof. All have removeable weathering cowls to facilitate ease of use and the ability to add services at a later date all can be used with virtually any roof covering material and are capable of being fitted to existing roofs.

Hold vent in position as centrally as possible between the rafters and mark where the vent spigot touches the underlay. If you are using an inside mount cowl on a tile flue caulk it into place with silicone sealant. Roof cowls to suit both vsr esr roof fans. It is possible for leaves and other debris to collect along the outside screen which will reduce draft inside your chimney.

If you are using an inside mount cowl on a metal flue do not use the sealant. For 500mm x 250mm slates only cut and remove section of batten. Step 3 install chimney cowl. Overall chimney cowl installation.

The device is easy to install just make sure you purchase a size that properly fits your flue. The cowl will normally be fitted to the upstand by a roofing contractor or builder. Extract roof cowls are fitted with a protection. See below for dimensions and method of mounting.

To solve this issue simply remove the cowl and clean it when necessary. If the fan inlet is less than 2 3m high a suitable guard must be fitted. The cowl can be fitted without shutters on a 0 60 degree pitched roof with its longer side running down the roof slope. Vhe roof cowl are made of galvanised sheet metal the inlet is protected with steel mesh.

Consisting of an attractive epoxy finished cowl with a lead weather slate and a range of direct connection reducing fittings. The unitex roof cowl system greatly simplifies the roof termination of mechanical ventilation systems. Our range of roof cowl kits allow for extraction of air via the roof.