They can be raised or flat and appear as if a film or layer has been painted onto the surface of the wood.
White stains on wood in attic.
This happens due to trapped damp air often in the late fall or early winter.
White mold tends to grow in high humidity environments rather than areas suffering from total saturation.
White or clear wax candle.
Brush don t roll the paint on in the direction of the wood grain.
Now that doesn t sound too hard does it.
Good for new and unstained surfaces.
Shop semi transparent stains.
The light color is a sign that the moisture hasn t reached the actual wood.
When this humid relatively.
Water optional technique 2 paint and wax.
Mold usually causes a musty odor and may cause staining that may be black brown gray white yellow or green.
The vast majority of attic mold is caused by humidity which is why white mold growth is common here.
Rather it s trapped within the wood s finish.
White spots or stains are caused by keeping hot vessels or objects on the furniture s surface.
Using the side of the candle roughly rub wax along the wood working quickly and sporadically leaving wax behind on the surface.
Attic sheathing and framing.
Wipe off with a paper towel or rag in the direction of the wood grain.
Transparent shows the natural color and texture of wood grain.
Such stains should not be confused with watermarks which are transparent and slightly raised.
Good for decks 5 10 years old.
The moisture humidity could be coming from the bathroom vent fan as you indicated this is the vicinity of the white stains.
Also notice the condensation stains at the shingle nail more evidence of a history of attic moisture which was a factor in this mold growth.
Both of these indicates water seemly seeping in around the nails or very high humidity inside the attic and the water droplets are condensing onto the cooler nails and leaching into the wood sheathing.
Shop transparent stains semi transparent adds hints of color shows texture of wood grain.
White exterior wood stains.
Water stains show up as white or light colored rings or clouds.
Wait a minute isn t that what furniture is for.
On attic mold visible on pine tongue and groove roof sheathing near the building eaves.
In a reasonably well insulated and vented attic stains may appear due to condensation.
Paint the entire surface with white paint and let it dry until tacky about 15 to 20 minutes.
The mold itself may have a cottony texture but can also be velvety leathery or.
Click photo for larger image.
Mix up 1 part water to 2 parts flat white latex paint we used budget ceiling paint from our local hardware store.