Wood Sap In Attic

When it dries it hardens and becomes difficult to remove creating unsightly spots or bumps in the wood surface.

Wood sap in attic.

Some wood has an abundance of sap in it. The wood wasn t dried or cured before use and the moisture comes out from the heat of the attic in the summer time when it is hot causing the wood to sweat. While there are complex chemical components found in tree sap it s easy to compare sap to blood. There are many many more trees in the country now than there were 1870.

You usually don t want to store instruments in an attic because the heat rises and there s humidity there says lucas workman brass repair technician at siegfried s call a new york based horn outfitter. Sap in painted wood will cause staining but it is ok in the attic. Wipe it up with paint thinner or turpentine so you don t track it around. Sanding blocks help smooth large flat areas.

Unless your attic is climate controlled it s not the best place to store wood or string instruments in particular. In a cooler area it would weep some but most would just dry in the wood. But the pine wood used now is different. It is not unusual to find sap in the attic wood of an historic house.

The sap when in live trees carries nutrients throughout the tree that helps to keep it alive. Hopefully not on your hands as you steady your walk through the attic. Similarly when a tree is damaged the sap can bleed out. We see more of this sap staining when the wood used for framing was not kiln dried before construction inspectapedia.

Probably why it was cheap. It is sap cause it contains sap wood. Much of the wood produced for framing lumber has pitch pockets or areas of crystalized resin. When it is wet it is sticky and can rub off on clothing or attract dust and dirt.

Sand the wood surface with fine 220 grit sandpaper to smooth the grain and remove any crystallized sap. It cooks out in the heat and eventually crystallizes. It comes out mainly due to the heat. Use a handheld oscillating fitted with.

Sap can caused a problem on decks and in houses where wood beams are used for support. Pine trees in that era that were used for construction grew naturally and were older than pine trees used now. This house was built in 1870. Does this dripping sap deteriorate the integrity of the beam.

It s actually tree sap. It s sap crystals that have been extruded from the wood due to high attic temperatures.