Where to drill a hole in PEX floor joist?
For 3/4 inch PEX, a 7/8 inch hole near the midpoint top to bottom of the joist should be OK, but you may want to use 1 inch to make it easier to pull. I have a fair amount of PEX run exactly that way in my basement.
How big can a hole in PEX be?
There is very little expansion of PEX at 125 degrees, so the hole through the joists can be slightly larger than the PEX, say 1/8 inch larger. If in any doubt, simply drop a short length of PEX into hot water, it will expand to whatever its final dimension will be very quickly, and you can test how large a hole you need.
Can you put a hole in a 3/4 joist?
As to the allowable dimensions for holes in joists, they are the same whether you are running wire, tubing, or just like to put holes in your joists. For 3/4 inch PEX, a 7/8 inch hole near the midpoint top to bottom of the joist should be OK, but you may want to use 1 inch to make it easier to pull.
Should copper lines run through floor joists or under joists?
Any advice appreciated. No reason to not go through the joist. If this is just in a crawl space not a basement then just go under the joist. Actually, its in the ceiling of a finished basement. Copper lines currently run everywhere beneath the joists, which I'd like to change, if feasible.
How do you run a PEX in a floor joist?
0:111:26Drilling holes for Pex installation - YouTubeYouTubeStart of suggested clipEnd of suggested clipAll you'll need is a drill a proper barn bit and joists. Once you have the right TV for the job. AllMoreAll you'll need is a drill a proper barn bit and joists. Once you have the right TV for the job. All you need to do is drill holes in your joists to run the tubing.
Can water lines go through floor joists?
Running Drain Lines through Joists Running drainpipes through floor joists is more complicated than running them parallel to the joists. Each joist must have a separate notch or hole and each hole should be about 1/4 inch larger than the pipe dimension and cut at a slight angle to accommodate the slope of the pipe.
Where should you not use PEX?
You can't install PEX in high heat areas like near recessed lighting. This also means you can't connect PEX directly to a hot water heater, but you can use a connecting material to do this. PEX is semi-permeable, which means liquid can enter the pipe. When it comes to safety, PEX isn't antibacterial.
Can you run PEX through subfloor?
They can be installed directly over the plywood subfloor, foamboard insulation or over the rebar/mesh. PEX rails also allow for a 1-person installation and significantly reduce installation time.
Is it OK to drill through floor joists?
The hole cannot be larger than one-third the depth of the joist, so the maximum hole size for a 2×12 joist (actual size 1-1/2 x 11-1/4 in.) is 3-3/4 in. diameter—plenty big enough for running cable! You can drill the holes anywhere along the length of the joist (first photo).
How close can you drill holes in floor joist?
2 inchesDon't make any holes with a diameter greater than 1/3 the depth of a joist. ' No holes closer than 2 inches to the top or bottom edge. No holes closer than 2 inches to any other hole or notch.
Why is PEX not allowed?
Rodent Risk Factors While pest experts don't know whether rodents chew through PEX to get to the water inside or simply because it's there, PEX and rodents can be a dangerous combination. Local building codes in some communities may not permit the installation of PEX if rodent infestations are common.
Can rats eat through PEX pipe?
PEX Pipe Is Vulnerable Rodents Chewing Through PEX Pipe is a common problem in our area. It doesn't matter how old your home is, if you have an attic, you need to watch for rodent damage to PEX Pipe or PVC. If you're hearing rustling noises coming from the attic, it's time to do an inspection.
What are the disadvantages of using PEX?
The biggest disadvantage to PEX is that it is unknown how well or long it will last. While PEX piping is warrantied for up to 25 years, it is unknown what could happen to PEX piping as the years go on. Since it is so new, it is hard to know what water will do to the plastic over 30 years.
Does PEX need to be sleeved?
If you are wondering if PEX needs to be sleeved, the answer is no. The only time it might need to be sleeved is if there is a leak from an expansion joint or penetration. It's not necessary for regular pipes and has been shown to create uneven temperatures. PEX doesn't need to be sleeved or covered.
How long does PEX last?
50 yearsPEX: Due to its flexibility and durability, PEX piping should last at least 50 years. PVC / CPVC: Under typical conditions, these pipes should last up to 100 years. Keep in mind that PVC pipes are often used for drainage because extreme heat can damage them.
Is PEX A or B better?
Flexibility - PEX-A is the most flexible, allowing for it to be fastened by cold expansion, which allows the end to be fluted prior to inserting the fitting. PEX B is not expandable and you should never expand the end of a PEX-B pipe. Kink-Resistance - PEX-A has the greatest resistance, PEX-B the lowest.
Can you run HVAC through floor joist?
There are manufacturers that advertise “insulating” panning sheet products that aid in this practice; however, using panned floor joists as an HVAC air pathway is highly discouraged because air leakage will be very difficult, if not impossible, to prevent.
Can you notch floor joists for plumbing?
You can cut a notch at the end of the joist to 1/4 of the joist's depth (maximum). Along the outer third of a joist, you can cut a notch a maximum of 1/6 the joist depth and 1/3 the joist length without compromising its strength.
Can you drill a 3 inch hole in a 2x10 floor joist?
Simply following building code, you'll only be allowed to bore a 3-5/64" hole through a 2x10 joist. A 2x10 is actually only 9-1/4" deep, and building codes set the maximum hole size to 1/3 the depth of the member (9-1/4" / 3 = 3.08333").
How much can you cut out of a floor joist?
Joist Notching Rules The maximum depth of a notch at the end of a joist (where it rests on a wall or beam) can't exceed one-quarter of the joist depth. Maximum notch depth in the outer third of a joist is one-sixth of the joist depth. Limit the length of notches to one-third of the joist depth.
How to protect PEX pipes from abrasion?
If your pipe is in contact with a joist, duct, electrical box or steel stud, or it is passing through a block wall or concrete slab, it needs to be protected. You can protect your pipe with abrasion clips, cover the pipe with inexpensive pipe insulation, or enclose it within a larger pipe. Pipes that are encased in concrete (for in-floor heating, for example) are OK because the concrete holds them in place. And pipes running straight through wood studs and joists are fine too—just protect the pipe in areas where it bends as it passes through.
What to do if pipe is in contact with a joist?
You can protect your pipe with abrasion clips, cover the pipe with inexpensive pipe insulation, or enclose it within a larger pipe.
Can you put pipes in concrete?
Pipes that are encased in concrete (for in-floor heating, for example) are OK because the concrete holds them in place. And pipes running straight through wood studs and joists are fine too—just protect the pipe in areas where it bends as it passes through. Upvote. PJmax. View Public Profile.
