Timber Sub/Mid Floor Breakdown
Вставка
- Опубліковано 9 вер 2024
- In this video, we break down timber sub-floors. How are they put together? What materials are used? What methods are used? We also cover mid floors as they are similar. If you like this content and want more please consider subscribing!
Great video josh
I'm in the process of fixing my mid floor that is extremely noisy in the room below and has some deflection which causes windows to rattle, the windows are in concrete so is actually caused by air pressure as the floor bounces.
The joists are the standard 240x45 at 4.2m.
I'm considering installing sister joists and replacing the blocking as they have shrunk.
I also considered fixing 2x4 to the base of the joists to increase their width.
Any good ideas to fix this?
You have a problem mate as your floor should not bounce as you put it , it sounds to me that you are short
of quite a number of supports for that floor, as every time it bounces it will be causing stress somewhere either
on the timbers themselves or the fastenings.
Cheers.
Hi josh. Just a question: does midfloor edfe/boundary joist can be considered as a lintel especially for large span opening like the garage door?
often walls with a double boundary joist above are non-load bearing walls, but not always. which is where you can find a double joist detailed as a 'lintel'. Table 8.10 in NZS3604, ignore the location shown in image.
another common place to find double joists detailed as lintels, would be if a client wanted joinery head to be flush with the ceiling. these floor beams or 'lintels' can also be designed from NZS3604 table 8.10 (parallel joist) or T8.11 (perpendicular) with joist hangers.
in high-end, this is common, except the spans are often beyond NZS3604 scope.
LVL's anyone?
Here's me realizing that camber doesn't mean what you think it means
The word you are after is crown
You crown the boards
Camber is a constant angle, like 45 degrees
and here is me realising I do KNOW what Im talking about, after a quick google search to confirm it...
"To compensate for deflections, structural steel beams and joists may be fabricated with a slight upward curvature, commonly referred to as camber"
regardless does it really matter John - if you call it a crown in your part of the world, and I call it a camber in my part of the world, and either way it gets install correctly?
Feel free to comment, but keep them positive or constructive