Floor Joist No Sill Plate

It was 2x10 joists but no mudsill just sill seal.

Floor joist no sill plate. A sill plate or mudsill is the bottom horizontal member of a floor system to which vertical members floor joists are attached sill plates are usually composed of lumber in sizes of 2 4 2 6 2 8 and 2 10. Sill plate repair replacement. Please for the love of god do not pour a concrete patio above the level of your foundation. I spent the last few days replacing a rotten sill plate the horizontal piece of wood that lies between the foundation and the floor joists.

Just the block cavities open to the conditioned space. I was inspecting a 30 year old home the other day and noticed in the crawl that there were no sill plates on top of the concrete block foundation. I don t see any evidence of rot on the joists. As i started to shopvac the cavities last night i noticed that there is no sill plate.

The floor joists and rim joists rest directly on the block wall. You don t need to use galvanized nails here. The sill plate you use to replace the old plate should be made of pressure treated wood. I had never seen this before but it appeared to be causing no issues.

We worked for a builder about ten years ago that did something similar. How to open a garage door with a broken spring. There is no vapor barrier or covering of any type over the top of the block wall. Guess they never heard of uplift.

You can remove the rotted wood and cut new sections to replace the old one. The floor supports did not look pressure treated but maybe the way they used to do things made this ok or the type of lumber that was used was more resistant to rot. Said job leads to the following all caps admonition. The ends of the floor joists rest on the sill plate while the center of the joists rest on the main beam.

The main beam itself is held up by large support columns installed every few feet.