Sistering floor joists with a span of 11.5'
Hi, I'm looking for some direction on sistering floor joices in a 90 year old home. Original joists are 2x6. They originally were not bearing any weight as it was an attic space. At some point, the walls were raised and a new roof added so the floor of the attic space became usable space, but the 2x6 joists were never supported. We want to sister them with 2x8s. The 2x 6s sit on the sill plate so I can only butt the 2x8s up against the esisting framing unless I notch them. Do you recommend joist hangers? I've been told that notching is not recommended. Also need to know if nailing and gluing is good enough or should we use lag bolts? Any pointers would be greatly appreciated. If minimum bearing length is 1.5" does that only apply to original joists, and not the sistered joists