How to select the insullation in the attic?

coodyMarch 1, 2014

I plan to have my unfinished attic finished. The existing insulation is R13. I was told to replace it with R30 on the wall and R19 on the sloped ceiling. Selection of the R19 on the ceiling is because the baffle will be installed. The R30 will probably be too thick against the baffle. Does it make sense using the R30 on the wall and R19 on the sloped ceiling or the R13 installation is good enough? See a picture of the existing insulation

. Thank you for your answer.

Thank you for reporting this comment. Undo

R13 or 15 is usually adequate for walls. If it were me I would put R38 on the flat ceiling and sister onto the sloped rafters what was needed to accommodate R 38.

    Bookmark   March 2, 2014 at 1:39PM
Thank you for reporting this comment. Undo

It depends on your location and whether or not an energy code applies.

    Bookmark   March 2, 2014 at 2:43PM
Sign Up to comment
More Discussions
4" or 5" rounded newell posts--where to order?
Is there such a thing as a 4" or 5" round...
I need help with making a decision to paint golden oak wood or restain
I have a 28 year old view home with dark bronze aluminum...
Will installing vinyl siding over cedar siding create a rot problem?
We have a friend with cedar siding installed over house...
I live in BC, so I realize the answer may not be the...
Cost to build cabinets/shelving
I have two unrelated cabinetry projects I'd like to...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™