Maintaining your roof & gutters is your best defense against dry rot repairs. Reputable contractors will only do dry-rot repairs on a “time and materials” basis unless it is absolutely clear on what is being fixed and what is not. A a home owner, you might be nervous about signing a blank check when it comes to repairs, but that is where the reputation of your contractor is paramount.
After repairing storm damage on a clients roof, the owner asked us to look into the cause of some dry rot. When dry rot occurs, the fungi break down cellulose and hemicellulose, the components which give the wood strength and resilience. We found that almost all the roof penetrations were improperly flashed by the original roof installer which led to dry rot in multiple layers of the roof structure.