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BobbyBobBob | 14:01 Wed 16th Apr 2014 | DIY
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I was trying to make our small porch roof thing that protrudes over our front door look fresh so I decided to paint it. While I was sanding, I came across a weird tar like substance that was gooey and sticky. It had a distinct smell that gets up your nose but i can't describe what the smell was. It was only over a small section of the side of the roof but the part that had old paint over it seemed to be bubbling! (This is before I've painted it myself)

I managed to scrape it off in the end with a scraper and painted over it and more or less instantly it gave a cracked effect over the part that had this sticky substance.

Any idea what this could be?

Those front door porch roofs don't have asbestos in them do they?
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If the roof is felted then it may be tar....or if its wood you are painting it may be resin from a knot.If the latter ....clean off and paint some knotting over the area let it dry and repaint.
What colour was it - resin is usually amber coloured
Alien life form... better get that tin foil hat on.

I'd go with tar.
Actually, Snags isn't far off with the the tin foil ............. whether it's tar (small felt roof I guess) ... or aliens, it'll need blocking. Aluminium paint is good at blocking tar.
A couple of coats, then paint away.

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