Finlock Roof Gutters
Finlock gutters are so heavy that they suffer from frequent movement - especially over window frames that have no hope of supporting the
weight of these concrete blocks.
Although these concrete gutters are large enough to hold vast amounts of water they do unfortunately suffer from frequent leaks
not helped by the fact that they often leak directly into the property as they do not overhang the edge of the exterior wall.
In the past the only solution was to have any new gaps filled with cement and the inside of the gutter re-sealed with a
typical bitumen based product that was simply
brush applied.
Although that is still possible and is often
the method used by homeowners and some roofing companies there are other options:
Gutter Liners to Prevent leaks
One the best solutions to leaking concrete gutters is to have a liner fitted.
These liners are fitted internally and are constructed in
either aluminium or synthetic rubber (E.P.D.M).
Once fitted the often seamless liners will offer fantastic protection from the elements.
There are several different profiles of Finlock gutters but most liner manufacturers will cater for all.
Removal of the Finlock System
It is possible to completely remove the concrete gutter blocks and replace them with a more attractive and leak resistant alternative such as Upvc or aluminium.
Although this may seem a drastic step - it is worth considering especially if your property is detached.
Photos are courtesy of TLG Guttering
Why Concrete Gutters Leak
The design of Concrete Finlock guttering is flawed. Concrete itself is heavy and water permeable.
They were used during the war years as other materials such as metal were sparsely available. Concrete guttering was not designed or
used because of any advantage - They are for many people a nightmare aspect of their home.
The main problems of these gutters are outlined below:
- 1) Heavy concrete will suffer frequent movement and cracking of the joints
- 2) Sealant used on the inside of the gutter is also subject to cracking caused by movement
- 3) The guttering is often only a few inches from the ceiling - a leak can cause considerable damage
- 4) Finding the specific location of a leak is sometimes impossible - leading to expensive repairs
- 5) Unlike normal gutters repairs need to be carried out by specialist guttering companies