Hello,
I have a brick fireplace that is very drafty. The flue is shut, but
there are air leaks. So last weekend, I sealed the face of the
fireplace
with cardboard and held it to the brick fireplace with duct tape for
stucco.

Just today, I noticed the duct tape is coming off the sides and air
is leaking again.

Is there a better type of duct tape for holding cardboard to brick?

Any suggestions ?

Thanks much.