Category Archives: purlins

Insulation and Vapor Barrier, Rich-e Board Insulation, and a Tear-Off

Posted by polebarnguru on 23/11/22 @ 8:00

Today’s “ask the Guru” answers reader questions about best applications of insulation and vapor barriers, the Guru’s experience with Rich-e Board insulation, and how to avoid a “tear-off” of a roof by adding layer of framing and insulation on top of old roof. DEAR POLE BARN GURU: Hello, I am building a pole building in […]

Categories: Rebuilding Structures, Insulation, Professional Engineer, Pole Barn Questions, Pole Barn Design, Roofing Materials, purlins, Constructing a Pole Building, Pole Barn Planning, Pole Barn Structure
Tags: Tyvek, Rich-E-Board, Tear-off Roofing, Insulation, Vapor Barrier, Housewrap
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How Far Can a 2×6 Purlin Span?

Posted by polebarnguru on 23/10/19 @ 8:00

How Far Can a 2×6 Purlin Span? Reader WILL in COMFORT writes: “How far can a 2×6 purlin on a 6:12 sloped roof span?” The following describes 2×6 SYP #2 purlins spanning a 14′ bay, with an on-center spacing of 24″ (sf). Purlins are recessed between rafters with their top edges flush with rafter top edges. […]