What is the black foamy material coming from my patio roof?

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I got some cleaners in to wash the patio/carport roof. When I returned I found black foamy material on the patio floor. What is this stuff? I now see daylight where the patio joins the main roof of the house.
 
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Corrugated foam fillers?
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Thanks noseall! What are they used for? How do I replace them? Do I need to have a roofer look at it? Will the patio/carport leak because they have been dislodged?
 
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Those dodgy roof cleaners are worldwide :eek: Perhaps they are descended from our Feckless Convicts we transported ;)
 
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