For wood decay to begin the wood must be saturated with a moisture content over 28.
Diagnose wood rot siding.
Wood beneath the siding begins rotting because of water damage.
There are a number of sings your wood siding is rotting.
Condensation on the siding s underside can slowly destroy the walls.
How can you tell if your wood siding is rotting.
Any bubbling blistering cracking or flaking paint should be a warning for you.
Boric acid is a powerful fungicide and can eradicate the rot causing fungi as long as they haven t penetrated more than 1 4 inch 0 64 cm into the wood.
Sprinkle boric acid across wood that shows signs of dry rot.
Using a screwdriver you can poke underneath the boards.
Look primarily for warping mildew buildup or insect infestation.
If you ve caught an instance of dry rot early enough it can be stopped with boric acid.
Obviously these vary in severity but if your home has wood siding it s a good idea to check up on it once in a while.
Pay attention to the surface of siding frames exterior doors baseboards flooring and drywall.
If it s soft you re dealing with wet rot.
There is not enough information to pinpoint the source of the problem but the cause of wood decay is always the same wood that gets wet and stays wet for too long at temperatures above 40 f.