Heat tape in rack

[luna_3]

I live in an older apartment, and have had problems maintaining proper temps at times during the winter months ( I also have 3" tape)
A friend told me to insulate the back of my rack with Reflectix. Best thing I ever did.
http://www.lowes.ca/reflective-insul...oc=reCanonical

Can you post a picture of how your rack looks with the reflectix? And how did you attach it?