Roxul R-value misprint?

Darren Williams| Posted inGeneral QuestionsonFebruary 7, 2014 12:23pm

I bought 24 bags of 7.25″ Roxul. The bag says R-30, but some of the Roxul had R-14 printed on one side.

It all measured the same thickness. Was this a misprint? Has anyone seen this before?

Answer

GBA Prime

Join the leading community of building science experts

Dwight Harris|Feb 07, 2014 02:25pm|#1

I haven't used it before, but at R4/inch I'd say if it's the full thickness/weight, you're fine. Is the printing on one half of the side? could be two R14's put together into R28.
Chris Brown|Feb 07, 2014 05:08pm|#2

Dwight,
I work for an insulation manufacturing company. While this does not occur frequently, it does occasionally pop up. Typically someone simply forgot to change the printing head from the product run previously. If all the batts measure to the stated 7.25" thickness, then you have your R-30 product.