GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Building Code Questions

  • Question & Answers

    Code for Lower R-value in Ceiling if Closed-cell Foam is Used

    Hello All,Building in zone 5 (south west idaho) where the county uses the 2017 Idaho Residential Code; which is based on the 2012 International Res. Code.https://codes.iccsafe.org/content/IDRC2017/chapter-11-re-energy-efficiencyWhile collecting insulation quotes, one…

  • Question & Answers

    Better to bury ducts in attic insulation vs put in unconditioned space?

    We live in Maryland just outside Washington DC.  A huge tree fell on our house, crushing the roof.  The house is a 2-story 5,000 sq ft colonial built in 1973,…

  • Question & Answers

    Staggered wall studs on bottom plate

    Can't seem to find anything in the codes for amount of stud sitting on top of frost wall above the bottom plate. I'd like to use a 2x12" with 2x4s…

  • Question & Answers

    Wall Stud and Floor Joist Spacing

    Hello Everyone - hopefully a quick, simple question. I'm building a 24'x32' workshop and trying to create the framing layout using advanced framing principles.  Trusses will be 24" OC and…

  • Question & Answers

    roof sheathing top course APA requirements

    I recently received the following plan review comment from a notoriously-punctilious building inspection department on an application for a garage in Superior, WI:"Make sure the top [course] of the roof…

  • Question & Answers

    Framing Rake Walls

    Rookie framing question: I'm a little confused with code (2015) whether I need to: A. balloon frame the rake wall so that there is no hinge point, or B. have…

  • Question & Answers

    Windows in existing residence

    Hello -The window company who installed our high efficiency windows neglected code in two by installing them in areas that required tempered glass, and they installed standard windows rather than…

  • Question & Answers

    Framing around a medicine cabinet

    We have an interior wall that is mostly 2x4, but has 2' of 2x6 to accommodate a DMV stack. We are  extending the 2x6 stud wall three more feet in…

  • Question & Answers

    Fire code

    Hello. In my attic I have paper faced fiberglass. The paper is covered by foil faced thermax with the foil faced out. It says combustible on the foil. The thermax…

  • Question & Answers

    Bath fans w/ lights – must they be IC rated?

    Hi.  Remodeling a bathroom.  Will install a Pansonic high flow, quiet replacement fan in my 10 x 15 foot full bath, w large shower.  MUST replace the 40-yr old exhaust…