When roof outlets are installed and properly bonded to the waterproofing membrane, it is essential that the holes do not become clogged up, which would restrict the drainage and lead to standing water on the roof deck.

 

Wallbarn offers a number of leaf guards which help to ensure that water can drain efficiently. They can fit into all designs of circular / downpipe outlets and connectors. They are compatible with all the different materials manufactured.

Wallbarn leaf excluders are made from zinc-plated iron, copper or stainless steel.

They are designed with 12 rods at the bottom which have a slightly serrated edge, so that the leaf guard can be inserted into the hole and the edges will grip onto the inside of the drain connector or outlet, which has a series of small ridges around the inside rim of the shaft.

DOME SHAPED LEAF GUARDS

Wallbarn code

Name

D1

D2

H

210-015-125-010

ZINC IRON  leaf guard

120

115

110

210-015-125-020

COPPER IRON  leaf guard

120

115

110

210-020-080-125

PLASTIC  leaf guard

140

160

210-015-125-030

STAINLESS STEEL leaf guard

120

115

110

See the CAD images here

They are UV resistant and will withstand all normal chemicals within the atmosphere.

They can be fitted onto TPE, EPDM or PVC outlets -Hyperlink here back to B roof outlets and collars page – easily without the need for fixings or bonding and can be removed and re-used without issue.

It is important to check the leaf excluders and clean out the area around them regularly.

Gravel excluders are also available for circular drain connectors and roof outlets where the area is covered with a gravel or pebble layer (such as border edges or shingle ballast in an inverted roof system), to prevent items entering and blocking the drain.

Made from polypropylene, it is equipped with a sturdy cage on the top with strong side bars and slats for the water to drain through.

We have two main designs – the Helix spoke (with three wide spokes) and the Spider fitting (with an angled four spoke design). Both these designs allow for installers to trim the spokes back easily using a sharp knife to fit the diameter of the outlet holes perfectly.

GRAVEL EXCLUDERS IN PLASTIC

Wallbarn code

Name

D1

D2

H

H 1

210-030-075-200

HELIX gravel excluder

208

230

50

220

210-030-080-200

SPIDER gravel excluder

208

192

50

140

210-030-085-150

SOMBRA gravel excluder

200

150

Again, regular maintenance and clearing of the gravel excluders is recommended.
See the CAD images here

NEW ** SQUARE LEAF GUARDS FOR CORNER / PARAPET / THROUGH WALL OUTLETS
Wallbarn now offers a strong, flexible plastic leaf guard designed for use with our range of corner / parapet / through wall outlets.

Wallbarn supplies leaf guards manufactured in a square shape, specially designed for the through-wall corner / parapet / through wall outlets.
Made from a durable and hardwearing plastic compound, they provide a secure fit into the mouth of the corner / parapet / through wall outlets to prevent drains becoming blocked. They are simply inserted into the mouth of the hole and will remain in place without fixings or adhesive.

Square Leaf Guard

For right-angle faced outlets, both those with the square shaped mouth and those with the circular spigot, this RIGHT ANGLED SQUARE LEAF GUARD is ideal. The leaf guard has two prongs which will grip the inside of the spigot to ensure a good fit.

leaf2

Although the square leaf guards are designed with straight sides, they can be used for both types of through-wall outlet – those with the right angled face and those with the 45° angled face and mouth.

Square Leaf Guard
Square Leaf Guard

For those outlets with a fillet-type angle around the mouth, the side arms can be cut with a sharp blade to create the 45° angle, giving a correct fitting. As these leaf guards are manufactured from plastic, they can easily be trimmed to alter the shape or reduce the size without affecting their performance.

PRODUCT CODE

MATERIAL

WIDTH

INNER WIDTH
(between prongs or arms)

HEIGHT

210-030-090-010

Plastic compound

170mm

90mm

115mm