You can also face expensive wood framing repairs if water leaks down into ceiling joists and walls.
Slate roof and wood beams leaking brown liquid.
Before you leave your attic use a measuring tape to roughly map out where the leak is so you can find it once the rain stops.
In an attempt to decrease that pressure the molecules begin to move outwardly that results in an expansion or wound in the wood.
The flashing and the guttering are actually the weakest points of a slate roof so look at them first.
Place the shingle or plywood onto the tar and spread more of the tar around the edges of your patch.
It could be the flashing so you will need to check that as well.
The damage from the expansion allows the wood sap to bleed or sweat out from deep within the beam.
Don t automatically assume it s the slate roof that s at fault.
Map the roof leak.
Insert a nail in the hole where water is leaking through the roof.
Structural damage is inevitable if there is a serious and long standing roof leak.
Step 2 place a bucket underneath the nail to catch the water as it runs down the nail.
Slate roofs steven trapasso presentation to ny metro ashi inc.
Spongy and weak water damaged wood can end in peeling paint damaged ceilings and buckled wall coverings.
Use a putty knife to spread the tar into the leaking hole on the inside of your roof.
5 common reasons for a roof leak.