Roofing Code: Insulation and Fenestration Criteria Details on International Energy Conservation Code Section 402.1.1 - Insulation and fenestration criteria. By Blackpool Roofing|2015-05-01T05:00:00+01:00May 1st, 2015|Emergency Roofing Maintenance, Industrial Roofing, Roofers, Roofing, Roofing Industry News|Comments Off on Roofing Code: Insulation and Fenestration Criteria Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail