I was blowing some pine shats off my roof yesterday with a leaf blower and stepped on a soft spot where the rood shingles caved in about an inch or so where my foot stepped. In looking at the underside of the roof from inside the attic it appears the problem area is about 2 feet wide and 4-5 feet long. just past the roof penetration of the kitchen vent which I assume is there the moisture is getting in. I was getting occasional leaks in the kitchen above the range hood when the rain was very heavy, but I assumed (apparently incorrectly) that this rain was rain being blown into the vent .
The rest of the roof appears to be fine and have had no problems with leaks.
My house was built in 1955 and the interior of the attic below the tar paper appears to be 2x4’s and the roofing shingles were apparently nailed directly to the boards roof as thousands of nails penetrate the interior of the attic boards.
I need to know
1: What is the best way to seal or protect the roof temporarily until I can get professionals in to look at it? I have a large blue tarp I could tie to the chimney, but making it fast to the roof might be an issue. Is fastening the tarp to cinder blocks or holding it down with bricks a viable strategy?
2: Is this a job I could do myself? I’m assuming I would have to remove a 10x10 section of roof to lay in all new boards and tar paper etc. but as the asphalt shingles are stacked form the apex like and interlocking puzzle I’m wondering if the job will require a while new course of shingles all the way to the apex of the roof.
Rain is in the offing so timely replies appreciated.