Really need a picture of the roof area.
Also go back and add your location to your profile.
It's never good to have any area sag or be flat on a shingled roof, would like to be able to see it to see why it's that way.
I know around here it's code to have Storm and Ice shield under the shingles along the lower edge to prevent this type problum.
Also go back and add your location to your profile.
It's never good to have any area sag or be flat on a shingled roof, would like to be able to see it to see why it's that way.
I know around here it's code to have Storm and Ice shield under the shingles along the lower edge to prevent this type problum.