White powder on Existing Rafters


Postby Scoobio32 » Sat Oct 04, 2008 5:44 pm

Hello. We have recently purchaced a house and are converting the loft. We have noticed a white powdery ressidue on the lower of the existing rafters on one side of the roof slope. Any ideas of what this might be?

Cheers for your time.
Scoobio32
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Joined: Sat Oct 04, 2008 5:41 pm

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