The International Building Code (Section 1203.2), the International Residential Code (Section 806) and the International Wildland-Urban Interface Code (Sections 504.10, 505.10, and 506.4) all allow attic venting with the vent openings covered with corrosion-resistant wire mesh with openings no greater than 1/4". The International Wildland-Urban Interface Code, 2006 edition, is much more restrictive in terms of the location of ventilation openings for the attic and it also specifically requires in Section 504.2: "For roof coverings where the profile allows a space between the roof covering and the roof decking, the space at the eave ends shall be fire stopped to preclude entry of flames or embers." Fire stopping can consist of 2-inch nominal dimension lumber (Section 504.3).

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