I am a first time roof replacer. I recently had a GAF Timberline Prestique 30 roof installed. The old roof was removed, including two layers of shingles. Roof vents were removed and boarded up and a ridge vent (which I didn't have before) was installed. Since the new roof has been installed, I hear groaning noises everytime it is windy. Is this because I now have the ridge vent and air is getting in, or is something wrong. I never went into my attic after the roof was installed. Should I? Any information/advice, etc in lay terms would be appreciated!
