Can you run drain pipe through joists?

In almost all cases, the answer to this question is yes. Run the drain line or a drain pipe through the joists instead of running the line through the joists. This means the drain line cannot get “bent” or twisted, and it gives the joists extra strength where they attach to the home’s frame.

Similarly, can you run gas pipe through floor joists?

A. If this is for gas pipes and electrical, the plumber should run it up and around any exposed areas on the ground, not across and through.

How do you run wires through studs?

Run wires and/or cables through pre-installed, metal-reinforced plastic (MRP) channels, or run these cables and wires across the studs. The screw holes are a bit oversized so the screws are smaller than they appear. For the most part, these screws can be installed into the holes with a wrench or similar tool without removing the washers or tapping them.

Why is PEX banned in California?

The California Air Resources Board in February 2011 announced a ban on the use of PEX for hot tubs and spas. Use of the material in these systems for anything other than maintenance is required. The ban applies to all devices using PEX tubing manufactured after December 31, 2016, unless the tubing was installed in a hot tub or spa before that date.

How do you run PEX through existing walls?

To connect a PVC pipe to a copper pipe, you can either use a sleeve to protect the copper pipe or simply run the pipe through the wall. Simply push the copper through the wall. For the sleeve method, you need an adapter sleeve or insert and a copper fitting for each connection.

Can hot and cold PEX lines touch?

Hot and cold lines can touch, but if you leave some insulation between them, it’s usually only a few inches between them. They could touch if the insulation between them is removed and they are in direct contact with the heat source or they touch at a joint.

How do I know which way my joists run?

The direction of the joists is shown by the arrows below. This will usually be on the bottom of the joists. Joists with red (or orange) lines are perpendicular to the bottom lines and joists with grey lines are plumbed.

In respect to this, how do you run wire through joists?

In a wood stud system, run the wire through the interior channels and support the wire as you insert it. Then screw to the header with self-tapping screws. For rigid wall construction, use wire-glass tape or wire fabric and press into studs, use a non-marking construction adhesive in between the glass and the stud.

Also Know, how much of a joist can be cut out?

If you trim the joist off at the end of the support, you may not be able to cut through the joist. If possible, cut the joist at the middle of the support to allow for additional cuts.

Can you run electrical wire behind studs?

Installing it under studs is acceptable but you should consider if it’s strong enough to support the wiring. Most residential systems can be installed at the point of feed at an appropriate height. Installing wiring next to studs may have safety, aesthetic, or reliability limitations that may apply to new construction.

Does PEX pipe need insulation?


Most importantly, PEX pipes are not considered part of your roof structure. Your roof is fully encapsulated and completely protected from the elements. All roofs require insulation (if you follow your building’s code requirements). In your case, if your attic or ceiling is unfinished it may not do the job as the uninsulated ceiling is still in direct contact with the winter air.

Can you run copper pipe through floor joists?

For more information, see “What types of pipes are considered OK to run in the floor? If you are using polyethylene or PVC tubing, it can be a good idea to line the pipes at each joist and run the pipe overhead.

Can you run ductwork through floor joists?

Ductwork installation and HVAC installation should always be guided by building code requirements. The purpose of ductwork is to provide a means for the supply and return of hot or cold air throughout a system to reach the point of need. This also makes the distribution of warm air throughout a building much more efficient.

How do you attach noggins to joists?

Attach them to the edge of the board using one or more nails at a 45° angle to the nail and perpendicular to the panel. The nail should be driven well into the joist.

How can I strengthen my joists?

Joist reinforcing. Most joists are made up of a number of wooden strips that are known as chords. To strengthen these joists, drill holes every third or fourth joist in the middle of each chord, making sure not to hit the edge of nails or fastenings used to attach these chords to the main floor.

Can I drill through a support beam?

You can drill through most building structures without damaging them. Some common types of support beams that can be drilled through include: 2-inch-diameter by 5-foot-long structural framing timbers, 2.75-inch-diameter reinforced concrete beam, and 2.5-inch-diameter by 6-inch-diameter rebar.

Can I run electrical wire outside of drywall?

This is an important question when it comes to home wiring.

Can you run a soil pipe under floorboards?

Yes, you can run soil pipes under existing floorboards, usually without problems if you don’t cut into the concrete. However, this requires drilling a hole for the pipe in the subfloor or installing the pipe in the joists that rest on top of the subfloor. Both require additional work.

How many wires can be in a joist hole?

When we refer to the number of wires used on a wire rope, it is almost always the number used to complete the wire rope diameter. The number of wires used as sheathing for wires is usually two or three. The wires used for a screw can have various guages and diameters depending on the type of screw and the specific needs of the project.

How do I strengthen my floor joists with plywood?

The problem is that plywood takes a lot of weight. So if you just lay plywood on an old floor, it’s likely to crack under a lot of weight. You can also use heavy-duty joists – but those are more money to buy and install then plywood.

Can you run plumbing and electrical through the same hole?

You can run plumbing and electrical through the same hole. So if you build a shower with a shower tray, the drain can also be used for an electrical outlet you are planning to install.

Can you run two wires through the same hole?

No, you cannot run both wires in the same hole, for example a 16 gauge (1.58mm) wire into a 20 gauge (1.9mm) hole without an insulating spacer. This can be dangerous as 16 gauge can still be too large and leave dangerous wire extensions at either end of the hole.

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