If you have 3/4" plywood subfloor you will be fine running it parallel to the joists===
I kinda doubt that the floors are 3/4 ply, the house was built in the late 50's... Has the original linoleum glued down, so I wasn't able to determine on my last look at her floors.If you have 3/4" plywood subfloor you will be fine running it parallel to the joists===
No basement, vents in the walls, she's 75 and too old to worn her way through the outdoor access trap to see under the house. I guess I'm gonna have to freestyle it!If it helps, maybe you could ask her to check the in the basement if it is not finished. Or another place to check might me in a floor vent. But you are probably right, my house was built in the 50's and I don't have plywood. I'm not sure when plywood started to be used.. I'm not old enough.
I believe your probably right, I have a 30 yr old faint recollection that suggests they were 1X's laid on the diagonal. Was a custom home well constructed when I gave it a once over before she bought it.1950's, most likely 1x4's, but depending on the builder, 5/8" plywood or 3/4" was laid as the sub floor. Home building methods were different depending on the area of the country. Was not until the 70's when you started to see cheap building, then the 80's really brought on cheaper building methods, which are still in place. Homes built from the 70's to the late 90's were no different than manufactured homes. Fell apart after a few years, cheap kitchen cabinets, lazy building methods.
Even today you see cheaper lazier building methods for homes, no matter how much they price the place out at. Personally I would not worry about it, as long as you have a good sub floor, and it isn't pressed sawdust. But even that can be changed out with the right tools in just a couple of hours.