ABSTRACT
Theoretically 100 mm is slightly undersized and could be accepted on the grounds of economy, but some engineers may select 125 mm, which would provide a large amount of reserve capacity which may be necessary for windborne rain.
Theoretically 100 mm is slightly undersized and could be accepted on the grounds of economy, but some engineers may select 125 mm, which would provide a large amount of reserve capacity which may be necessary for windborne rain.