What are these pieces of wood called in my attic?
In the pic, you can see the plank decking for the roof and then the rafters are of course under it. But under the rafters there are 2 pieces of 2x10 wood next to each other going horizontally accross and they are going through the pine tongue and groove sheathing and run all the way down the house i guess.
Does anyone know what they are called. This room that they are exposed in is a unfinished storage room attached to the house.