Roof Cowl Installation

If the roof is sharply sloped or the chimney is very high consider hiring a professional.

Roof cowl installation. It is suitable for connection to spiral duct soil pipe and flexible duct from 125 to 250mm diameter. Never set up a ladder with its feet at different heights. The vhe roof cowl can be used for air intake and ejection in both industrial and residential buildings. Extract roof cowls are fitted with a protection.

These cowls and roof fans are designed for either kerb or purlin box mounting on a flat or inclined roof. Overall chimney cowl installation. The cowl will normally be fitted to the upstand by a roofing contractor or builder. Our range of roof cowl kits allow for extraction of air via the roof.

If the fan inlet is less than 2 3m high a suitable guard must be fitted. Vhe roof cowl are made of galvanised sheet metal the inlet is protected with steel mesh. The unitex roof cowl system greatly simplifies the roof termination of mechanical ventilation systems. For 500mm x 250mm slates only cut and remove section of batten.

Hold vent in position as centrally as possible between the rafters and mark where the vent spigot touches the underlay. Complete roofing to one course below the position for the slate vent. See below for dimensions and method of mounting. The bottom part is a male connector for mounting to the roof base.

If you are using an inside mount cowl on a tile flue caulk it into place with silicone sealant. Roof cowls for the extraction supply of air are made of galvanized steel sheet as a standard. Consisting of an attractive epoxy finished cowl with a lead weather slate and a range of direct connection reducing fittings. If you are using an inside mount cowl on a metal flue do not use the sealant.

The product is available on request with a female connection and or made from stainless steel or aluminium sheet. Step 3 install chimney cowl. Cowl or roofline vents for slate roof. They can be purchased for either a tiled or metal roof and include all the parts you need to install the roof mounted vent easily.

Roof cowls to suit both vsr esr roof fans. 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. It is possible for leaves and other debris to collect along the outside screen which will reduce draft inside your chimney.

To solve this issue simply remove the cowl and clean it when necessary. Cowl kits are available in a wide range of sizes from 100mm up to 200mm. 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.