Ice barrier — roofing + gutters: code vs good practice

Code: 24″ inside wall line, where required (cold climates). Good practice: meet code.

Kick-out flashing — roofing + gutters: code vs good practice

Code: required. Good practice: meet code.

Code: no specific requirement. Good practice: architectural.

Code: no specific requirement. Good practice: 6″ on big roofs.

Code: no specific requirement. Good practice: solid pipe away.

Code: required at eaves + rakes. Good practice: shingle ½–¾″ over.

Structure · Chapter 31

The roof keeps water out of everything else. Most leaks happen at edges, valleys and anything poking through.

IRC Chapter 9 roofsIRC R905.1.2 ice barrierIRC R903.2.1 kick-out flashing

31.1

Roof choice trades cost, weight, life and look.

Flashing fails before shingles do.

The rest of Roofing + gutters: 3 more spreads, 17 drawings and 8 code citations, plus every other chapter, is part of the full fieldbook.

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