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

Community and Q&A

Radiant barrier for garage

user-5924747 | Posted in Energy Efficiency and Durability on

Hi , I am building a new home Phoenix AZ , main house will be SIP’s , my 3 bay garage will be on the S/W cnr and will be traditional stud , radiant barrier osb external and then drywall internal , I will have low level vents around perimeter of garage and then ridge vents ( 6ft of available ridge ) I will be leaving a permanent opening thru garage ceiling to access the storage area above thus allowing free flow of hot air to ridge , the walls/roof will be treated same as walls

my questions are , will the natural flow of air caused by heat rising be enough to keep garage to same outside air or should I introduce mechanical assistance , also will I need to create a path for hot air between osb and drywall up through wall plate and along roof void .

many thanks


GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.


  1. user-5924747 | | #1

    and can you please tell me how do i search for previously asked Q n A so I dont go repeating myself on questions , thx

  2. GBA Editor
    Martin Holladay | | #2

    Q. "Will the natural flow of air caused by heat rising be enough to keep garage to [the] same [temperature as the] outside air?"

    A. Probably not.

    Q. "Can you please tell me how do I search for previously asked Q and A?"

    A. At the top of every GBA page is a search box. For this question, you might type "cooling a garage" or "hot garage" or "garage fan" or "garage AC." Try a variety of search terms, with and without quotes.

Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |