Roofing Code: Valleys in Steep-Slope Shingles An overview of roofing codes IBC 2012 Section 1507.2.9.2 related to valleys and valleys in steep-slope shingle roofs. By Blackpool Roofing|2014-10-01T05:00:00+01:00October 1st, 2014|Emergency Roofing Maintenance, Industrial Roofing, Roofers, Roofing, Roofing Industry News|Comments Off on Roofing Code: Valleys in Steep-Slope Shingles Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail