0
Joists are supported by the walls underneath them. The tops of your walls all need to be on the same plane, level. That will make your ceiling lines straight after drywall. The top of the joists in an attic will never be seen, and as such do not matter. Most framers will look at each joist and put any crown facing up, knowing that over time they will sag a little and be straight from the inside of the room.
What else can I help you with?
Why should the tops of floor joists need to be level?
Joists are supported by the walls underneath them. The tops of your walls all need to be on the same plane, level. That will make your ceiling lines straight after drywall.
How can I fix sagging floor joists in my home?
To fix sagging floor joists in your home, you can use support beams or jacks to lift and level the joists. Additionally, you may need to reinforce the joists with additional lumber or steel supports. It is important to consult with a professional contractor or structural engineer to ensure the proper solution for your specific situation.
How can I effectively level floor joists in my home?
To effectively level floor joists in your home, you can use a combination of shims, adjustable support jacks, and sistering new joists to existing ones. Start by identifying the low spots and using shims to raise the joists to the desired level. Support jacks can help provide additional support and stability. Sistering new joists involves attaching new joists alongside existing ones to strengthen and level the floor. It's important to consult with a professional if you're unsure about the process or if the issue is complex.
How can I properly sister floor joists?
To properly sister floor joists, you should attach new joists next to existing ones to provide additional support. Use construction adhesive and nails or screws to secure them together. Make sure the new joists are the same size and length as the existing ones for a strong and level floor.
How do you ensure proper alignment and support when installing floor joists?
To ensure proper alignment and support when installing floor joists, it is important to follow building codes and guidelines, use the correct size and spacing for the joists, and properly secure them to the supporting structure. This can include using joist hangers, blocking between joists, and ensuring that the joists are level and straight. Regular inspections during installation can help identify and correct any issues early on.
How can I install composite decking over a concrete porch?
To install composite decking over a concrete porch, you will need to first ensure the surface is clean and level. Then, use concrete screws or adhesive to secure sleepers or joists onto the concrete. Finally, attach the composite decking boards to the sleepers or joists using screws or clips.
can plumbing go through joists?
Yes. It isn't desirable but can be done. However you need to understand enough about construction to know how to do it properly without causing damage to the joists and areas around them.
Can roof joists run in a different direction to floor joists?
Yes. Rafters and flloor joists do not have to run the same direction.
How do you build a deck close to the ground?
AnswerI have done it two different ways. One way is to build your frame with all the joists and rim joists then manipulate the dirt by moving it around or digging it out to make it level. Another way is to put it on posts and raise it an inch or two off the ground and level it by attching the joists to the posts using a large level. There is no one way that is correct method everyone is different. I like the post method cause it doesnt sit right on the ground and will resist rot alot better.
How do you find load bearing walls in a 2 story?
You will need to go to the level above the wall. If girders, joists or another wall is supported by your initial wall, then that becomes a 'load'. Supported by by the wall downstarirs, Thus bearing a load
Which teeth do you need to brush the tops of?
All of them
Factors that affect the size of ceiling joists?
The load to be supported.SpanWood speciesSpacing of joistsGrade of lumber used!By Mitchell LewisSource: page 31611th Grade Architect Book @ CTEA
