It arrives in a plain envelope and it reads like a threat. Your insurer, or the inspector they sent out, has flagged your roof, and somewhere in the letter is the word non-renewal. Homeowners across New Port Richey, Trinity, and Hudson call us in a panic that week, most of them convinced they are about to be quoted for a whole new roof.
Usually they are not. Here is how to read the letter before you spend anything.
What the letter is actually asking for
Read it closely and you will normally find it names staining, organic growth, algae, or debris — not structural damage, not missing shingles, not age. That distinction is the whole ballgame. A roof flagged for growth is a cleaning problem. A roof flagged for cracked tiles, exposed underlayment, or storm damage is a roofing problem, and no amount of washing changes that.
If you cannot tell which one you have, take a few photos from the ground and send them to somebody who cleans roofs for a living before you call a roofer. The two trades quote very different numbers.
Why insurers care about roof algae at all
The black streaking on Florida roofs is a hardy algae called Gloeocapsa magma, and it holds moisture against the roof surface instead of letting it dry between rains. Over years that shortens the life of the roof, which is what the insurer is pricing.
There is a second, less technical reason. A stained roof photographs badly. Underwriters increasingly review aerial and drone imagery, and a dark, streaked roof reads as neglected whether or not it actually is. Cleaning it changes the picture they are looking at.
Florida's 15-year rule, and why it confuses people
Florida law limits an insurer’s ability to refuse coverage on roof age alone when a roof is under 15 years old. A lot of homeowners read about that rule and assume it protects them here. It does not, because an algae letter is not an age complaint — it is a condition complaint, and condition is fair game.
So do not lean on the age rule as a reason to ignore the letter. Deal with the condition they named.
What to do inside the 30 to 60 day window
Check the deadline first, because it is the one number in the letter that actually matters. Then get the roof soft washed, not pressure washed. Soft washing applies a cleaning solution at roughly garden hose pressure and lets the solution do the work, which is the only method that is safe on shingle and tile.
Pressure washing a roof will strip the granules off shingles and drive water under tile. That turns a cleaning problem into a roofing problem, and it can give the insurer a far better reason to drop you than the algae did.
What proof your insurer usually wants
Most carriers accept dated photographs showing the roof after cleaning, and many will also take a paid invoice from the company that did the work. Ask your agent what format they want before the crew packs up, because going back for a second set of photos is a nuisance for everybody.
Keep the before shots too. They are the evidence that the work happened, and they are useful if the same inspector comes back next year.
What not to do
Do not ignore it and hope the renewal goes through anyway. Do not agree to a roof replacement until somebody has actually told you the roof is failing, in writing, for a reason other than staining. And do not let anyone pressure wash it because they are cheaper and can come Tuesday.
If a contractor tells you a stained roof automatically needs replacing, get a second opinion. That is a sales position, not an inspection.
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Frequently Asked Questions
Got a letter with a deadline on it?
Send Ron a photo of the roof and we will tell you honestly whether it is a cleaning job. Free, no-obligation quotes across New Port Richey, Trinity, Palm Harbor, Odessa, Hudson, and Lutz.