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Image library

Image library

Here you will find all the main images that have been used in Site Practice to illustrate specific points.

The appropriate tool for cutting cladding sheet is a sheet nibbler, a tool developed especially for this application. This tool gives an accurate cut, with no damage to the coating and allows holes to be cut of varying size and complex geometry.
cutting
For the seals to be effective, do not under or overtighten the fasteners, since this will deform the resilient washers.
Correct installation for primary fasteners
Damage can occur to the topcoat during handling or erection. This damage can be of various levels of severity and it follows that the requirement for remedial action is dependent upon this severity.
Damage to the coating
Metallic debris for example, swarf or rivet stems, may result in rust-staining of roof cladding sheets and may lead to corrosion due to ponding. Debris of this nature should carefully be removed at as early a stage as possible. Other debris may include expanded foam bitumen, tar or mastics, which all require specialist cleaners. Concrete, cement and plaster may also be present as debris and can be removed with a 5% phosphoric acid solution, followed by thorough rinsing with clean water.
Swarf left on a roof
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