Fitting instructions for the Dektite square roof flue flashing

Stove Help & Advice Home

These fitting instructions are for the Dektite square roof flashing.

Dektite EPDM flashing are not suited to use with single skin flue pipe as the flue gets too hot. In this situation use a Dektite high temperature flashing.

Dektite square roof flashing fitting instructions
Trim the cone of the Dektite flashing to suit the flue pipe using sharp tin snips.	Using water as a lubricant slide the roof flashing down the flue pipe. If the flue pipe has a folded seam then once the flashing is fully installed apply a bead of silicone where this seam meets the EPDM cone to make sure that it is waterproof.	Ensure that the roofing material that the flashing will bond to is clean, dry and dust free. Turn back the flexible flange of the Dektite flashing and apply silicone sealant around the edge.
Press the base of the Dektite square flashing to the roof profile by hand, smoothing out any awkward creases. Do not fully extend the base so as to allow for vibration.	Fasten the edge of the flashing to the roof with self sealing fasteners or pop (sealed) rivets. If the flue pipe you are using has a seam in it then apply silicone where this meets the cone of the flashing.	Use the Dektite flashing on the diamond for enlarged penetrations on steep pitched roofs or deep corrugations.

Choosing the right Dektite flashing

The chart below will let you choose which flashing is right for you.

Fixing kits for square base flashings

Fixing kits are available for the dektite square base flashing.

In KIT 1 there is: 1 x 75ml tube of Silicone, 25 x Self Drilling Screws, 25 x colour caps (Silver) and 1 x fixing instruction leaflet. Kit 1 costs £8.50 inc VAT.

In KIT 2 there is: 3 x 75ml tube of Silicone, 75 x Self Drilling Screws, 75 x colour caps (Silver) and 1 x fixing instruction leaflet. KIT 2 costs £12.00 inc VAT.