Questions tagged [code-compliance]

For questions relating to compliance with laws and ordinances of federal, state/province and local jurisdictions. Questions should also be tagged with the specific area of construction involved.

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35 views

Is a Bathroom Heating Vent in Wall Shared with a Garage OK?

My home was built in the 1960s in MD, USA and has a ground floor bathroom next to the garage. The bathroom has a heating vent in the wall bordering the garage. (The wall is 2x4, not 2x6, construction, ...
6
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2answers
157 views

Does placing electrical cables in a fence between two structures meet electrical code?

Can electrical cables be concealed in a fence between two structures? In this residence, the power meters and outdoor panels are located on the garage. There is a panel inside the residence like most ...
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0answers
101 views

Running bathroom vent duct through cold air return

I am remodelling a basement and I noticed that the old bathroom has the vent duct running through the cold air return ( for about 6ft, in and out, the entrance and exit are sealed) and then outside. ...
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3answers
8k views

Is the wall between a home and an attached garage built as an “exterior wall”?

I have an attached garage. There is an exterior-rated door between the garage and the living space. Should the entire wall be built as an exterior wall, as far as sheathing, width, etc? Is there a ...
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2answers
3k views

Can a 10' high wall be built with 2x4's in Ontario?

I'm building a 1400 sq. ft addition which will be mostly covered with a flat (very low sloped) roof, with a second storey bedroom over the rest. I'd like to have 4" of continuous rigid exterior ...
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2answers
432 views

What is the proper way to connect 10awg wire to connectors rated for 14awg wire?

I'm installing 120v to 12v transformers for low voltage lighting. Inside the transformer are output connectors for the low voltage wire, and those output connectors are rated for 14 awg wire. I'm ...
4
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2answers
405 views

Can I install outlets in my window wells?

I'm helping my folks install battery-operated sump pumps in three window wells to deal with a persistent flooding problem. We're running a GFCI-protected circuit from a nearby sub-panel to each ...
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1answer
2k views

What is the legal definition of a habitable space/room?

I am confused as to what rooms are habitable rooms in regards to permitting. According to ASHI Habitable rooms are living, sleeping, eating and cooking rooms. Common terms for these rooms include ...
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1answer
94 views

Does every light within a fixture need to be grounded or just the fixture itself?

I'm building a chandelier that is around 10 feet tall that will look similar to the picture below. The chandelier is made entirely out of malleable galvanized iron pipe. Each light socket on this ...
4
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2answers
170 views

Is it legal to torque-seal terminal screws on electrical equipment?

Torque seal is a lacquer-like product used in critical applications after a screw is tightened to provide a visual indication if the screw comes loose. Considering that a terminal screw on an ...
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1answer
433 views

What is the proper way to protect electrical wires in an iron pipe lamp?

I'm building 10 foot tall steampunk chandelier. It will look similar to the this The electrical wire is going to be fed down through the top of the chandelier and to each light bulb. All the ...
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0answers
95 views

Does IRC 2012 Code allow water lines in exterior wall?

New construction, 2x6 exterior wall in a basement walkout. Does the IRC code or any plumbing code prohibit installation of water and drain lines in an exterior wall? We want to put a vanity sink ...
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3answers
1k views

Is there any reason (code or otherwise) to not vent one room into another?

I have a closet in my office that I'm using as a server room in my house. As I add more equipment in there, it generates a significant amount of heat, which is contributed to by the office itself (...
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1answer
390 views

Is it okay to use an LFNC whip to connect air conditioner where subject to physical damage?

I have seen many air conditioners at ground-level in multiple cities near me that are connected using liquid-tight non-flexible conduit (LFNC) whips. Example: http://www.southwire.com/products/whip-...
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1answer
94 views

Is modifying a box unsafe or against any electrical codes?

I modified a ceiling fan support box to fit onto a ceiling fan support brace. I did this because I wanted a ceiling fan in my dining room, but the junction box had three conduits running into the top ...
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2answers
4k views

New house - No neutral in switch box?

I was going to add an outlet to a switched 1 outlet circuit thinking it would be pretty straight forward to run a wire from the switch box to a new outlet. The switch in question is a simple 2-way. ...
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0answers
36 views

Possible to DIY a multiple fixture canopy?

I've been looking at making a fixture for my island that would consist of 5 separate LED bulbs hanging down from a single canopy, each about 15" apart. Looking at what's out there in terms of ...
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2answers
444 views

What is considered “servicing” for NEC 225.30?

I previously asked a question (Grounding subpanels located ~100ft from main breaker) where I was informed of NEC 225.30, which states that a building [...] shall be supplied by only one feeder or ...
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1answer
1k views

Can a thermal expansion tank be install above the water heater?

The manufacturers instructions show the expansion tank installed with a 'heat trap 6" minimum' drop to the side of the water heater. I have a tall 30 gallon (< 17" diameter) water heater going in ...
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2answers
2k views

Is it within code to hang a pendant light independent of a junction box?

My new construction home has a 23.5' cathedral ceiling. The electricians roughed in a junction box that is slightly off-center with the room below. In order to fix this, and at the same time not move ...
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1answer
535 views

Can a washing machine closet be located adjacent to an electric panel?

We want to relocate a washer/dryer into a closet that shares a wall with the house's electrical panel (which is in the kitchen). Any code violations here or considerations?
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1answer
162 views

Electrical Codes Pertaining to Electrical Near/Under Gas Cooktops

I've got a gas drop-in cooktop that will be installed in the next couple of weeks as part of a whole house renovation. The electrician put in the 4x4" electrical box shown in the same cabinet that the ...
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2answers
669 views

Proper framing for connecting two deck beams together

I'm designing a deck by modifying an existing plan I found. The design features a large triangular projection on the right side, which is supported by a double 2x10 main beam (supported by 3-6x6 posts ...
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2answers
158 views

Roofing material for flat slope western pacific northwest

10 months after purchasing a manufactured/RVIA certified home the, landmark arch, ridge venting shingle roof began to leak, with water leaking out of the crevasses of the main beam. A roofing ...
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1answer
3k views

Are service loops allowed by US electrical code in residential wiring?

I'm about to rough-in my electrical wiring for a remodel of our bedroom and have seen several videos where people leave an extra 6-8 inches of wire looped outside of an outlet box which will allow for ...
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1answer
110 views

Outlet with two different circuits

Have a question on wiring a duplex receptacle. My living room presently has several outlets that are controlled (completely, top and bottom) by a switch. It also has outlets that are not controlled by ...
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0answers
71 views

Shed wall anchorage

I have an existing 48"x48"x4" thick concrete pad sitting atop gravel/crushed stone that goes down to the frost depth. The pad was poured with the idea being that a water tank would sit on it, and then ...
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1answer
1k views

Installing electrical box in 2x4 [duplicate]

I'm designing a custom headboard for our bed and I want to install electrical into the cubbies I am making in the headboard (primarily for cell phone charging). In my current design, the electrical ...
3
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2answers
7k views

Can I run wires from two separate circuits through the same box?

Can I run wires from two separate circuits through the same box, if one of those circuits is just passing through (no connections)? I have a switch in the basement which is currently wired to outlets ...
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1answer
105 views

Can a single set of conductors feed utilization equipment *and* a subpanel simultaneously under the NEC?

So, let us assume we have a set of conductors (hot/neutral/ground) going off to some piece of utilization equipment. Can I also run a set of conductors of appropriate ampacity off this circuit to a ...
6
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1answer
906 views

Wiring for recessed lighting through ceiling with floor trusses

I have a finished basement that I'd like to add recessed lighting to. Instead of solid joists in the ceiling, I have floor trusses. In a way, this is good because I don't have to drill holes in the ...
4
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1answer
370 views

How to use the 2015 IRC Chapter 24, G2407.6.2 to determine combustion air?

The 2015 International Residential Code (IRC), Chapter 24 ("Fuel Gas"), Section G2407.6.2 allows for one permanent opening to be used to supply outdoor combustion air into a mechanical room for gas ...
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1answer
100 views

Can I add a lean-to to a large shed?

Is adding a large lean-to roof for a large shed going to exceed the limits for the IBC definition of a shed? The shed (details below) is already at the IBC limits for shed area and height. The lean-...
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1answer
498 views

Is make-up air required if all gas appliances are direct vent?

My fireplace is direct vent, and my gas heater is not. If I replace my gas heater with a direct vent model, do I still need to supply make-up air? The only other gas-burning appliance is a gas stove, ...
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2answers
525 views

Elevate water heater next to ceiling in garage to gain floor space

My electric water heater is in a corner of my home's garage in Dallas, TX. Code requires it to be raised 18" off the floor, so it creates this odd shaped nook in the corner. It currently sits on a ...
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2answers
95 views

Is there a lighting code restricting where lights can be placed?

I am having a new home built in New Brighton, MN, USA. We went over the plans on where we would like our lights, outlets, switches to be placed throughout the home. I asked them to place a light in a ...
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1answer
153 views

Is this the legal and best way to add power for bathroom fans?

Summary: I would like to add bathroom fans in bathrooms #1 and #2 (see drawings). There are currently no fans. I believe the existing bathroom circuit layout is not up to code so I am looking for the ...
3
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1answer
3k views

Can service entrance and branch circuit cables be commingled in an auxiliary gutter?

One of the major Code defects in my current house that I want to rectify at some point is the fact that the (only) panelboard is mounted too high up on the wall (the current panelboard's service ...
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1answer
478 views

Wiring up a light fitting made for the US market to a UK power supply

I'd like to buy this light fitting from a US supplier. I plan to get it shipped to the UK and wire it up. Is there anything I should look our for when wiring a light fitting made for the US market ...
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1answer
57 views

How to find what code is in my area for insulation in an unfinished basement?

I just purchased a house that was built and finished this year. My house is backed up to a hill, and the foundation walls get shorter from the front of house (8 feet) to the back (a little over 2.5 ...
5
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1answer
14k views

Can Romex (NM-B) be run in conduit for more than 10 ft when starting from the breaker panel?

The answers to this question indicate that NM can be run in conduit: Can Romex (NM-B) be run through conduit? I was hoping to enclose 12-2 NM-B in EMT for about 20 feet from the breaker box up my ...
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1answer
320 views

How to wire a solid state relay according to code

I want to build an outlet that I can control on a timer or through a device like a smartphone. I am planning on using a solid state relay for this job. I'm aware of the electrical code stipulation ...
3
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1answer
153 views

Is it NEC-compliant to place a GFCI or AFCI receptacle or deadfront device in a location not readily reachable?

NEC 240.24 requires overcurrent devices (fuses/breakers, incl. AFCI/GFCI/DFCI breakers) to be placed so that their operating means is no more than 6'7" off the ground under most circumstances, and ...
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4answers
4k views

How can I replace electrical boxes with the least amount of collateral damage?

I'm looking at a 1970-era house in VA. The outlet boxes are fed by 12/2, 12/3 NM cable. I am planning to update some of the outlets, for example to be more modern, or to be GFCI. Unfortunately, ...
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0answers
52 views

Bathroom Sink up to code?

My bathroom sink has no overflow drain hole, (not sure what the proper term is)is this up to code for an apartment in California, specifically LA County?
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1answer
245 views

Does this look alright??? Does this meet code??? Electrical surrounded by water pipes

I'm under contract for a house that needs some updating. A previous owner framed a full bath w/ shower around the electrical panel in the basement. The seller agreed to moving the panel & ...
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2answers
172 views

Where in the fire code does it say gasoline may not be stored indoors?

Re Seattle fire code, but site this applies to most U.S. cities. I think it is forbidden to keep a fueled or formerly fueled gasoline generator indoors, esp in a commercial, multi tenant building. ...
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1answer
51 views

Running 8/3 along strongback

I'm running a 220(240) 8/3 line for a table saw in my garage. I can fish the 8/3 to the box. I need to run the line to the other end of the garage. The other lines are run down the 1.5" side edge ...
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1answer
859 views

Are WAGO lever splice connectors approved for use with solid aluminum #12 or #10 with WAGO joint compound

Are WAGO lever connectors approved for use in the US with #12 and #10 solid aluminum wire with the WAGO joint compound. The use would be for copper pigtailing of aluminum wiring.
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1answer
804 views

How do you calculate water supply fixture units?

I'm trying to figure out how many water supply fixture units (WSFU) can fit off of my CPVC supply lines. I looked at the tables in the 2015 NSP , but where I'm confused is figuring out where that is ...