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Old_school (Old_school)
Senior Member
Username: Old_school

Post Number: 1234
Registered: 01-2009
Posted on Monday, August 12, 2019 - 07:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Maybe its a silly question, but did they blow some cellulose insulation into the attic? What is the ventilation like? Old School
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Rag (Rag)
New member
Username: Rag

Post Number: 1
Registered: 07-2019
Posted on Wednesday, July 31, 2019 - 05:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hello:

I am a CT home inspector purchasing a 1930's house with a slate roof in Burlington, VT. I hired a local inspector as "another set of eyes" and I worked alongside him this morning. I have no experience with slate roofs.

We discovered a situation in the attic that we were unable to sort out.

There was some white powdery deposits in the attic on the underside of the tongue-in-groove roof decking. It looks like efflorescence, it could be mold or it might be something completely different. There were not any active leaks observed and all was dry when tested with the moisture meter. Photos attached.

Can anyone with slate roof experience provide some insight as to what might be going on here?

Thanks in advance for your help!

-- Rob --

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