Metal roofing is more than just roof sheets.
A practical metal roofing scope also considers flashings, penetrations, junctions, drainage and the surrounding roof details. These areas need to work together whether the project involves a local repair or a broader roof replacement.
Define the metal roofing scope around the building and roof condition.
Assess
Review the existing roof, affected areas and related details to understand the condition and required work.
Define
Set the practical scope for repair, replacement, flashings and related roof work based on the assessment.
Deliver
Complete the agreed metal roofing work and associated details included in the scope.
Match the scope to the condition of the metal roof.
Localised damage may suit a targeted repair or replacement of affected roofing and details. Where deterioration is broader, a larger replacement scope may be more practical than continuing with isolated repairs.
Metal roofing for commercial and construction scopes.
ALTUA supports commercial properties, builders and construction projects with metal roofing work where the required scope, access and project conditions fit our capabilities.
Commercial roofingMetal & COLORBOND roofing — common questions
Is COLORBOND the metal or just the colour?+
COLORBOND is BlueScope's pre-painted steel, which has a metallic coating plus a factory paint system. Metal roofing is a wider category that also includes ZINCALUME steel, aluminium and other metals, so the product name matters when comparing.
How does distance from the sea affect the roof product?+
BlueScope publishes selection guidance by distance from breaking surf or calm marine water, and industrial fallout also counts. Closer to the sea, a higher grade such as COLORBOND Ultra is recommended. Building requirements also set minimum coatings to suit the environment.
How does heat make metal roof sheets move?+
Metal expands and contracts with temperature. Building requirements limit how far a pierced-fixed sheet may run between end fasteners, and movement still wears washers and fixings over time, which is a common source of leaks.
What roof pitch does a metal profile need?+
Each profile has a minimum pitch, set by the maker's installation guide and building requirements for metal sheet roofing. Low-pitch roofs limit the profiles that can be used and may suit membrane systems.
Will a replacement sheet match the weathered roof?+
Not exactly. Painted steel fades gently over the years, so a new sheet is usually slightly different in shade until it weathers. Washing the roof, as BlueScope recommends, helps keep the finish even.