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Profile Closures

Profiled closures are available for all profiles. They are available in narrow tip (for going under the profile) or wide tip (for fitting over).

As they restrict the free movement of air, their use should be restricted to where they are required for weatherproofing and appearance (such as scribers under window jamb flashings) or for maintaining positive internal pressures, such as in building with a managed internal environment. Profiled closures should be of closed cell type, rather than bitumen impregnated.

In marine areas, corrosion is likely to initiate under apex flashings and under the eaves overhang, regardless of whether profiled foam is used. A high fronted spouting is the best protection against the eaves corrosion. In very severe cases, or where there is a gap between the back of the gutter and the fascia, an eaves flashing of durable material (e.g., aluminium or plastic) can be used to prevent much of the salt build-up on the underside of the roof cladding.  (See Eaves Flashing)

Eaves Comb

For vermin control, a perforated scribed aluminium flashing, or an eaves comb, may be used.

In marine areas, corrosion is likely to initiate under apex flashings and under the eaves overhang, regardless of whether profiled foam is used. A high fronted spouting is the best protection against the eaves corrosion. In very severe cases, or where there is a gap between the back of the gutter and the fascia, an eaves flashing of durable material (e.g., aluminium or plastic) can be used to prevent much of the salt build-up on the underside of the roof cladding.  (See Eaves Flashing) 

Eaves Corrosion due to Low Fronted Gutters

Low fronted gutters in severe conditions will often lead to eaves corrosion
Clause: 
008_008_000_000_000_000_000_000_000
Clause Number: 
8.8
/cop/flashings/profile-closures
Revision Category: 
2 - Editing and rearrangement
Revision Detail: 

Clause revised. Recommendations have not changed. Drawings replaced with more accurate depictions.

Draft Clause: 
007_010_000_000_000_000_000_000_000