Its a good first step, but the r value of reflectix isnt nearly as much as foam board or fiberglass. Foam board has a reflective coating on the outside that will do the same thing (reflecting IR radiation). But if you have some lying around and it works, then it works.
Its a good first step, but the r value of reflectix isnt nearly as much as foam board or fiberglass. Foam board has a reflective coating on the outside that will do the same thing (reflecting IR radiation). But if you have some lying around and it works, then it works.