27 Jan '14, 11am

Specifying a pitched roof? What is the environmental impact of selecting metal? #Roofs #Metal

Specifying a pitched roof? What is the environmental impact of selecting metal? #Roofs #Metal

Pitched roofing materials: Metals Key issues • Embodied energy - there's a wide scale of embodied energy from wood shingles at the low end of the range to aluminium at the high. The main energy components are those derived from manufacture and transport. As with other materials, sourcing a product in the UK (and close to site if possible) can dramatically reduce its embodied energy. • Material efficiency - Selecting a material can be made more complicated once its efficiency is considered. For example in some circumstances it can be argued that a strong, lightweight material used over a large span can have a lower environmental impact than a heavier, more sustainable material once the degree of structural support is introduced into the equation. • Durability - The longer lasting roofing material has a lower environmental impact. Materials Stainless steel Though embodying h...

Full article: http://www.greenspec.co.uk/pitched-roof-coverings-3.php

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