R- Value

Tom_133

Hey Guys



Looked at a job today that has 12" thick brick outside walls. They are double brick walls with an older board insulation in between the two. Anyone know if the Uponor program will know what to rate that style outside wall for R value? I haven't run into this before, it's very similar to a school building it has big wall mounted convectors feed with 1" copper and lots of windows!!

heatpro02920

Brick

I do .2 per inch, something like you are describing I would do r5 total... Is it exact, no probably not, is it rite enough without being horribly wrong, yah.... With brick it can depend on age, the quality of the seal, ect ect ect, I have seen double wall with an air gap, I have seen everything in that gap from foam to a piece of plywood to nothing but air... Like I said I do .2 for every inch of brick, then add what else is there, you will most likely be under r5 when you are done...