this contractor is bulls--ting...

the damage is well localized; you can see the worst case spot where the subfloor disintergrated, that's where water came through. nothing to do with exterior wall. 

you probably want to tear up the bathroom floor, 4-6 square foot. you have to do it anyway because you have to get rid of the rotten subfloor. Then you can see the beam better. The worst case you put a beam under the existing beam to support it. The secondary beam sits on some concrete blocks.

所有跟帖： 

• 我也想过sister beam，反正要做欧式的洗澡间。就是Schluter Systems那种。 -happylittlewoman- ♀ (149 bytes) () 04/26/2021 postreply 17:48:12