Our home is experiencing intermittent leaks in two areas of our home, and we believe it is related to an issue on the roof in each area. I had three roofing companies inspect the area, and each one has a different solution to the problem. The roof is about 18 years old. It has flat concrete tiles which are on top of what I believe is a single layer of 30 pound felt. The tiles sit on wooden battens. I believe the original felt was attached using staples according to one of the roofing companies. I have attached a couple of pictures showing the areas impacted by the leak; they are almost mirror images of each other. We believe the water is entering the home somewhere on the roof and then running down the wall near the windows. We spent time this weekend spraying large amounts of water at the windows and could not get them to leak so we are fairly confident the roof is the culprit. Here are two of the proposals we received.
Proposal 1: Remove existing roof tiles in area. Install new double layer felt underlayment and battens. Install metal where needed in repair areas and replace J metal on wall and install new metal behind stucco. Reinstall tiles removed for repair.
Proposal 2: Remove tile at leak area, clean debris in cricket, install new Boral Tile Seal HT underlayment which will be installed (adhered) over the top of the existing underlayment in leak area, reinstall existing tile and cut back to open cricket area.
I would appreciate any feedback regarding these proposals. Thanks!