Due to holiday time constraints I will not be able to install my metal roofing for about two weeks, maybe three. I need to waterproof the roof so I will be laying down 30# felt paper over the decking. My question is… will this be a problem? I realize that this is not a totally waterproof solution, but a few drips won’t much hurt anything below. I just want to seal out any real downpours. Is there any special way that I should attach the paper? I plan on using nails and tin buttons or maybe the plastic caps with the nails. (not sure what they are called). I am not sure of the pitch but it’s pretty steep so I won’t have to worry about water traveling up the laps in the paper. Any suggestions and advice will be much appreciated! Thanks in advance folks!