 Judy in Missouri is online with a roofing question. How can we help you today? Yes, I was wondering if you had ever heard of, had a roof repair a few years ago, and it's been leaking ever since. They used what they called Pam Shield. It's a synthetic underlayment, and it's plastic. And they use that instead of felt paper. Yeah, right. It's synthetic, and it's actually an upgrade to standard 15-pound felt paper roofing.