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Post Info TOPIC: QUESTION: Why do some shingled roofs turn black on the ridge caps while the rest of the roof is fine?


Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

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Posts: 2065
Date: Apr 17, 2013
QUESTION: Why do some shingled roofs turn black on the ridge caps while the rest of the roof is fine?
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Thought I knew everything by now confuse biggrin

Every once in a while I come across a roof with triple the algae buildup on the ridge caps.

I see no reason for this?

I am leaving soon to look at this roof in person, the owner said the ridge caps were terrible.  Before leaving I checked Google and here is a picture:

https://maps.google.com/maps?q=26092+Waterfowl+Ln,+Punta+Gorda,+FL&hl=en&ll=26.999643,-82.016029&spn=0.040915,0.054331&sll=27.004265,-82.021196&layer=c&cbp=13,178.5,,2,-3.71&cbll=27.004603,-82.021357&hnear=26092+Waterfowl+Ln,+Punta+Gorda,+Charlotte,+Florida+33983&t=h&z=14&panoid=cMjB2-doiGPUsn9_K6CsOA



-- Edited by Bergman Roof Cleaning Port Charlotte FL 941-698-1959 on Saturday 18th of March 2017 07:46:40 PM

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RCIA Founder

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Date: Apr 17, 2013
RE: QUESTION: Why do some shingled roofs get much sooner and more algae on the ridge caps?
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Because the ridge caps get wind from ALL directions full of algae spores.


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Deleted

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Posts: 1034
Date: Apr 17, 2013
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On shingle roofs there's two ways to cap. One is with caps made to be caps. These have Algae resistant properties!
Some guys use 3 tab shingles and "make" caps out of them. These caps will not have AR properties.

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Premium Member Roof Cleaning Institute Of America Certified Roof Cleaning Specialist

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Posts: 297
Date: Apr 18, 2013
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This is an interesting topic. I have noticed that hip and ridge tiles seem to get a lot more lichen than field tile. I figured there must be some difference in the make up of the batch.

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