I am writing a report for an inspection yesterday. I could use some help determining the condition of the roof.
House was built in 1981, I am uncertain as to whether the roof is original or if it was replaced. There is algae and moss, lots of debris, and a great deal of pitting?. Is anyone familiar with the pitting that I am seeing?
Attic is dry, sheathing looks good.
Any suggestions on describing the conditions? Should I be recommending replacement?
You’re welcome.
If you need reasons for your client you can use the following:
Pitting
Granule loss
Brittle/Not pliable
Curling/Cupping
Tab sealant/adhesive no longer active
It may not be leaking now, but its current condition makes it much more susceptible to leak causing damage from wind, rain, or debris.
I agree that the roof needs to be replaced and would write it up as such. I am not sure that it is the original roof. Does a shingle roof last 33 years up in your neck of the woods? Also look a the vent stacks. They do not look original.
The pitting is blisters. Although they’re ugly they’re seldom responsible for leakage. How was the roof structure ventilation?
I don’t see an cupping, or maybe very mild cupping, I don’t see major granule loss. It looks fully bonded.
I wouldn’t call that roof at or near the end of its useful life. It’s obviously not new, but I don’t see imminent failure anywhere.
I’d describe the blistering and recommend that the roof be cleaned and kept clean.
Lets think about this for a moment. You are looking at a 20 year three tab shingle. The home was built in 81’ and we know from experience that a 20 year shingle only gives 15-18 years on average. 29 year old home would tell me that the shingles are not original but more like 10-12 years old. They are likely a couple of years away from being replaced. The pitting is exactly what Kenton said.
In my report I would recommend that the moss and debris be removed, the shingles be inspected yearly (upsell) and have them budget for new shingles in the next couple of years.