The cast iron gutters on this listed building were more than 150 years old and were in very poor condition.
Originally outbuildings for a stately home, the premises had been converted into domestic apartments and the owners were experiencing numerous problems which required constant attention.
After many failed attempts at repairing the gutters, the owners’ association asked one of our approved installers if they could help, since heritage planning restrictions meant that they couldn’t change the gutters.
Liquasil’s liquid gutter liner was chosen by the contractor as being the most appropriate method of lining the gutter.
Access to the narrow gutter was severely restricted by overhanging asbestos cement roof tiles and the project was further restricted due to the difficulty of getting cherry pickers into position.
The cleaning process for cast iron gutters is similar to that of steel, in that all vegetation has to be removed and then the internal surface wire-brushed to remove delaminating rust.
Once cleaned, the gutter was treated with Liquasil SWT Primer to prevent rust breaking through the coating system. Because of uneven surface and porosity of cast iron, approximately 3 times the amount of SWT Primer was required than would have been the case on a steel gutter.
Once the primer was cured, the coating project could commence. This would normally involve sealing the joints first with non-Sag Sealer and then coating the full gutter with Liquasil One.
However, because of the limited access available and due to the premises being domestic dwellings, all of the lining works had to be completed in sections, so the Non-Sag Sealer was applied at the same time as the Liquasil One.
The gutters extended all around the internal courtyard perimeter as well as the external perimeter of the building, so progress was particularly low, but the end result was worth it, as all leaks were completely eliminated.
