Many different types of metals are used in the construction of a roof and a wall as well as its various components, we at Boyle Copper & Zinc Craft Ltd offer Copper, Green-Coat PLX and Zinc.
Traditionally, the most suitable ''hard'' metals have been found to be Copper, Zinc, Aluminium, Stainless and Galvanised mild steel, which are used for the construction of roof coverings, vertical cladding, flashings, capping or copings and roof drainage etc. Each type of metal can be supplied in a variety of thicknesses and finishes.
The substrate is normally formed by a fully supporting timber boarding or plywood structurally supported, although pressure resistant insulation or composite panels can also be used.
Where possible corrosive influences should be minimised through the use of suitable separation layers (underlays), protective coatings etc. Typical examples of corrosive influences are cedar cladding above zinc, asphalt above copper, wood preservative containing copper below aluminium.
We at Boyle Copper & Zinc Craft Ltd aim to install roof and wall cladding to the best standard with minimal corrosion as possible. We also try to guide our clients when considering what metal to use, we tend to take into account the risk of underside corrosion through lack of ventilation, corrosion through contact with other influences and corrosion from the flow direction of water run off. Some metals should definitely not be used alongside other metals.
Metals also go through a stage of Patination, whereby a natural oxidization of raw metal surfaces follow exposure to the atmosphere. The time span for this to occur usually depends on the metal and the degree of exposure to the elements such as wind and rain precipitation etc.
It is also important to consider the type of roof construction when determining the most suitable metal and underlay to be used. Some questions which should be considered are:
- Is the metal specified for use resistant to underside corrosion?
- Does the metal specified need to be protected against underside corrosion? (the degree of protection will vary with each manufacturer).
- protective coatings in themselves may not be adequate to prevent underside corrosion and the manufacturers guidelines should be carefully considered.
- Is an underlay specified and if so is it suitable? (e.g. structured underlay)
Your roof will either have a warm roof construction or a cold roof construction.
We strive to give our customers the best service and a snag free cladding installation with a full warranty but please ensure that you construct the substrate to FTMRC recommendations. Download FTMRC Guide to Good Practice in Fully Supported Metal Roofing and Cladding
| PLEASE CLICK ON THE SECTIONS RELEVANT TO YOUR INSTALLATION |
| Cold Roof |
| Warm Roof |
| Copper Cladding |
| Zinc Cladding |
| Green-Coat PLX Cladding |