The House that Roof Built

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1 comments:

carrytim23 said...

Ballasted roof systems . In a ballasted roof system, the widths of membrane sheets can be up to 40 feet wide, thereby reducing the number of seams required. These systems, which could feature concrete pavers or 4 inches of heavy gravel for the ballast, demand a roof structure that can support the extra weight. For more info visit at Floormate-online.co.uk

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