THE PROBLEM
The metal cladding had previously painted cladding was flaking as a result of poor adhesion and the roof and gutter were leaking. Further to this the colours did not match the clients site wide colour scheme.
Cladding Painting Suffolk
THE SOLUTION
As requested we quoted for the removal of all existing coating and application of a suitable protective coating system. Firstly we had to determine the adhesion of a suitable coating system as the cladding had an extremely smooth surface finish that was probably the cause of the previous protective coating failure.
To determine the adhesion of our proposed solution we removed some of the existing coating and applied several different primers, with or without abrasion of the substrate. Following cure of the samples the adhesion was checked and we determined that Rustoleum Metal Cladding Primer offered the best adhesion without requiring abrasion.
The gutters of the building were asbestos cement. The external gutters were to be removed but the central valley gutter could not. Our Category B trained operatives cleared this gutter of moss and debris, containing this as Asbestos contaminated material for correct disposal.
Following removal of the existing coating by high pressure water jetting we were not fully satisfied with the preparation standard as some of the previous coating still remained but was not sufficiently well adhered to enable overcoating. We therefore took the decision to remove this by method of vapor blasting using a fine crushed glass media in order to minimise removal of the original cladding treatment that was generally in very good condition, protecting the asbestos cement gutter so as not to damage.
All surfaces received a final wash prior to masking windows and fixtures not to be coated
As part of our standard quality assurance soluble salt tests and dust tape tests were conducted to ensure that all surfaces were sufficiently clean prior to coating works commencing.
Prior to and during coating application as part of our standard quality assurance climatic conditions were tested and recorded to ensure compliance with the manufacturers recommendations.
At this point the specification deviated for the roof and the walls. Due to the history of water ingress from the roof Rustoleum Noxyde was applied in two coats at a practical coverage rate of 0.5Kg/m2 per coat. All seams and bolts received a heavy stripe coat by airless spray to ensure full and additional film build in these areas prone to water ingress.
As well as offering excellent corrosion protection Rustoleum Noxyde forms an elastomeric membrane that can elongate 200%, making it particularly suitable for applications such as this.
Once cured this was followed by the application of Rustoleum Metal Cladding Top Coat to achieve the clients required colour scheme.
The walls were treated with two coats of Rustoleum Metal Cladding Top Coat as there was no requirement for the waterproofing and anti corrosion properties of Noxyde.
The corroded bolts in the gutter were treated using Corroless EPF rust stabilising epoxy primer. Corroless EPF contains a mined rust stabilising pigment that converts corrosion to stable iron oxides such as magnetite, thus preventing further corrosion.
The gutter was lined using Remmers MB2K, with reinforcement applied in the form of Remmers VF120 bandage to seams and joints. Remmers MB2K is an elastomeric waterproofing system that will adhere to a wide range of substrates and one that we have used extensively for lining leaking valley gutters such as this.