A house requires 18m of guttering along side – how much should the fall be in mm?

A house requires 2.5m of guttering along side – how much should the fall be in mm?

A house requires 6m of guttering along side – how much should the fall be in mm?

(a)  

A house requires 18m of guttering along side – how much should the fall be in mm?

(a)  

A house requires 2.5m of guttering along side – how much should the fall be in mm?

(a)