Jump to content

Ever see anything like this?

Tom Raymond

Recommended Posts

This roof cover is clearly toast, but any idea what is going on here?

This is the view from the ridge down.

Click to Enlarge

28.81 KB

This is a close up of an unstained shingle.

Click to Enlarge

38.65 KB

Close up of stained area.

Click to Enlarge

32.66 KB

It isn't clear what caused the stains, the only trees close to the house are evergreens, or why the stains would appear varnished.

I look forward to learning something.

Link to comment
Share on other sites

The stains are a form of algae. It will grow in shaded areas right on the roof surface.

The shingles look like they're either really old or are reacting to some kind of chemical. Did you test a corner of a tab to see if they're crystalized all the way through?



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...