Well this is my first post. We have owned our home for almost 6 years. The home was built in May of 1969. We hired the US inspect company for the property inspection and for the most part it was a good experience. The only frustration came about with the roof which passed the inspection. The previous home owner advised us and the inspector the garage roof had some sagging which they had repaired. The inspector told us the roof was OK and the reinforcements looked to be done well. Within the first 18 months we found out from 4 contractors the roof was shot. So we replaced the roof. This involved a removal of two layers and new decking. The first layer was wood shingles followed by the standard composite shingle. All the contractors stated the roof shingles were dried out because of lack of felt between the two layers of roofing materials. To say the least we were not very happy. Fast forward almost 6 years making our new roof about 4.5 years old. We started to paint the house. In doing so we noticed the south side of the garage roof had some sag in the trussel area. We had also noticed this Spring a bowing out of the facia board. My intial thought on the facia board and or guttering not being nailed directly into the trussel ends and became loose over time. After the removal of the guttering and looking closely at the south side of the roof we were concerned because of the sag and a high spot. Seems, the work on reinforcing the roof 6 years earlier was not all done in the same manner. I will need to add pics to better explain the situation. I have also noticed the garage roof has 3 ridge vents without any sofits in the underside eves area. Looks as though the repair group reinforced all the trussels with 2x6's on the Southside of the garage. On the North side they started out reinforcing all the trussels until they cracked one trussel. They then reinforced it with a 2x6 and then cracked next trussel. After they reinforced the second trussel in the same manner they then decided not to attempt and raise the final 4 trussels on the North side. Instead, they choose to run a 2x6 across the final four trussles and support them with 2x8 from the floor on the first and fourth trussel. Looks like they left the last 6 trussels in the original sagging postion. I have to say we are not very happy and wonder if it will be possible to fix this correctly? We are left wondering what our 250 dollar inspection did for us in this roof nightmare. Then on top of that the roofing company never advised us about the sagging problem when stripping and redecking the roof. Anyway, our first post and boy are we having fun. Again I will post some pics and hopefully shed a little light and advise on our roofing problem.