These plates do what they say, i have a baseboard system im adding floor heat to. I used a 1/2 crown staples w an air stapler for an underfloor installation but had to back the air pressure way down to avoid blowing the staples through the plate. Not sure why people are complaining about the blue film, i just left it on, it doesnt impede the function of the plates at all and in most installations they wont be visible upon completion.