Metal Roofing Materials Evaluation Materials Evaluation

Question

Task: What are the properties, benefits, and usage of different Metal Roofing Materials Evaluation materials?

Answer

Metal Roofing Materials Evaluation Materials Evaluation

Roofing materials require to be carefully chosen after close evaluations of their properties due to them being exposed to extreme weather and conditions (Spence & Kultermann 2016, p. 502). This makes it critical for the materials to poses certain properties so as to ensure they remain in use for the longest possible time and require the least amount of maintenance. The average life span of a normal metal roof will be between 40 and 70 years but this is directly influenced by the conditions and materials the roof comes in to contact with (Oliver, Albon & Garner 1997). Below is a summary of three Metal Roofing Materials Evaluation materials which are commonly used on the global market.

Material	Metal Roofing Materials Evaluation - Properties, Benefits and Usage
Steel	Life span ranges from 40+ years Low cost affordable for roofing large surface area Corrosion resistant when enamel coated Requires corrosion enamel coating every 24 months Painting Required every 24 months Strong resistance from pressure Weight – heavy roofing materials when used in thick gauge Extrusion properties – hard materials likely to fracture and crack when placed under intense sudden pressure. Withstand extreme heat and cold conditions Fixture – fastened to either wood or steel truss frames using u bolts which makes then easy to mx and remove. Packaging, Lifting & Transportation – required to be packed and fastened in sets of 100-150 pse which creates large and stronger volume and surface area which reduces he risk of damage
Aluminium	Life span 100+ years High Cost (double cost of steel) Always corrosion resistant with or without enamel No Corrosion enamel required Painting required every 36 to 48 months Light weight but weaker tensile strength as compared to steal. Easily fractured under pressure stress Weight – Light Weight and strong Extrusion – materials is malleable allowing it to be easily pressed in to a desired shape Withstands extreme heat and cold conditions Fixture – fastened to either wood or steel truss frames using u bolts which makes then easy to mx and remove. Packaging, Lifting & Transportation – required to be packed and fastened in sets of 100 -200 pse which creates large and stronger volume and surface area which reduces the risk of damage
Copper coated	This Metal Roofing Materials Evaluation Life span ranges from 60+ years Very costly but high Cost compensated by durability Corrosion resistant on copper coated areas Permanent Copper coating Painting Required every 36-48 months Strong under pressure due to having stainless steel base layers Weight – Heavy due to steel base coated with thick layer of copper for corrosion resistance. Extrusion properties – copper is soft making is very favourable for pressing in to any desirable shapes. coating Liable to chip and flake under extreme conditions or when in contact with certain elements Fixture – fastened to either wood or steel truss frames using u bolts which makes then easy to mx and remove. Packaging, Lifting & Transportation – required being packed and fastened in sets of 50-100 pse to prevent over stressing individual sheets and chipping the copper later.