Mistaking sprayed foam for mold growth in buildings.
Sap crystals in attic.
When it dries it hardens and becomes difficult to remove creating unsightly spots or bumps in the wood surface.
I hope this helps.
Attic ambering refers to wooden beams in the attic having sap leak out.
Much of the wood produced for framing lumber has pitch pockets or areas of crystalized resin.
I will try to post a photo of this for your review.
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There is also another substance that this could be which is not mold it s sap crystals that have been extruded from the wood due to high attic temperatures.
Sap can caused a problem on decks and in houses where wood beams are used for support.
Otherwise it s harmless and never makes it in my report.
When it is wet it is sticky and can rub off on clothing or attract dust and dirt.
We see more of this sap staining when the wood used for framing was not kiln dried before construction.
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Like kevin said the attic heat restores this to a liquid form and it flows out.
We see more of this sap staining when the wood used for framing was not kiln dried before construction or the attic has ventilation issues.
This is not mold it s sap crystals that have been extruded from the wood due to high attic temperatures.
We see more of this sap staining when the wood used for framing was not kiln dried before construction.
Sap in painted wood will cause staining but it is ok in the attic.
Does this dripping sap deteriorate the integrity of the beam.
There are these tiny crystals about half a millimeter all over the wood in the attic.
Hopefully not on your hands as you steady your walk through the attic.
It s sap crystals that have been extruded from the wood due to high attic temperatures.
The sap when in live trees carries nutrients throughout the tree that helps to keep it alive.
Similarly when a tree is damaged the sap can bleed out.
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We see more of this sap staining when the wood used for framing was not kiln dried before construction inspectapedia.
