New answers tagged joists
7
votes
How do I screw through a metal bathroom fan box to affix it to the joist?
Almost any wood screw.
It takes only say 3/4" of penetration into a joist to secure such a housing. Thread type doesn't much matter. Diameter doesn't, either, though thinner screws will go in ...
- 126k
3
votes
How do I screw through a metal bathroom fan box to affix it to the joist?
There exist "self drilling" screws that have a hardened drill point for piloting their own holes through metal, but these tend to have threads that are too fine for grabbing onto wood ...
- 496
0
votes
Attic access, feasibility-how-to question
A DWV pipe under an attic floor would almost certainly be a dry vent pipe, there are very few restrictions on what you can do with those, as long as they do not have reverse slope. It will still have ...
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0
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Accepted
Sistering to lapped rafters
Sister the rafter, then attach a piece that overlaps both rafters. Tie everything together with carriage bolts.
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0
votes
Shall I/How to Repair Falling Subfloor?
A subfloor does many things for the structure of the house: it ties all of the joist together, adds structural stability against major forces working against the house, provides a flat surface upon ...
- 2,977
1
vote
Accepted
What are some effective ways to repair water-damaged rafters in a garden shed?
You may find rot in the wall section too, but if the top plate is in good condition, you can sister the existing roof rafters without removing them or any roof. You will need to remove the blocking ...
- 33.8k
1
vote
What are some effective ways to repair water-damaged rafters in a garden shed?
Those rafters (and joists? it's hard to tell) look quite bad. Take a screwdriver and poke them all over. If the screwdriver goes in more than say, 1/2", you have to replace the wood. For joists, ...
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2
votes
Accepted
Can I run electrical wires along this metal support beam?
There are two issues:
Protection from damage
This is actually not such a problem here. It is a big issue with walls, but with ceilings normally not a concern. That being said, if you use conduit ...
1
vote
Can I run electrical wires along this metal support beam?
You can run the wiring in PVC or EMT conduit, and attach the conduit to the beam using "beam clamps".
If this is a basement and not a living space, or if you will box it in when it becomes a ...
- 15.7k
2
votes
Basement Ceiling Soundproofing
No, I would strongly advise against this for multiple reasons.
Little to no soundproofing value.
A lot of extra weight added to the floor system.
Difficult to gain access to the floor system in the ...
- 1,780
2
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Basement Ceiling Soundproofing
You could do that. Weight might be an issue, but probably not too bad. Rough estimate about twice that of 3/4" plywood. But I don't know how effective it will be. Generally speaking solid ...
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