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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1answer
51 views

Is a dryer vent tube being compressed like this up to code?

There's a 4" dryer pipe in my wall that is smashed slightly in order to get it to fit into the wall made with 2v4s. Is this OK?
6
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1answer
668 views

What is “code” and what should a DIYer know about it?

I've heard people who work in construction and here on this site discuss "code", and when this happens someone sites a specific document such as the National Electrical Code or International Plumbing ...
2
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1answer
34 views

Can I terminate my dryer vent next to my gas meter?

Background I want to move my electric dryer. This involves moving the exhaust vent. This question is about where I can safely terminate the vent duct on the exterior of my home. I already understand ...
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0answers
48 views

Does a contract to build a deck need an occupancy clause?

I am replacing an exterior deck. I've had several contractors out to give quotes, accepted an estimate from one, and am now in the position of signing (or not) a contract for the work. It's a lump sum ...
2
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2answers
46 views

Is this a compliant way to control three circuits with two switches?

I'm planning to replace two dimmer switches -- but I found the following clever wiring when opening up the junction box. Three circuits where the neutral lines are spliced together, one live line ...
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1answer
38 views

Electrical Code Clarification

I'd liked to get some insights into how others interpret the code regarding AFCI and the NEC 2015 code. Here's a hypothetical: Arc fault protection is omitted for outlets outdoors, garages and crawl ...
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0answers
63 views

Deck diagonal bracing alternatives

The IRC prescriptive deck guide calls for decks taller than 6' to have diagonal bracing placed parallel (planar) to the beam from post to beam. My deck, which is built with a beam on one side and a ...
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0answers
22 views

Does the junction between two horizontal spaces need to be fireblocked?

This question is in regard to interpretation of IRC:2012 R302.11 for a single family dwelling. It is clear that junctions between vertical and horizontal framing need to be fireblocked (e.g. between ...
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1answer
46 views

Proper wiring for dishwasher and GFCI

Can I connect a dishwasher to a GFCI outlet that is part of a 20amp circuit that has a total of 2 GFCI outlets?
2
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1answer
77 views

Deck Footing capacity with BigFoot base

I'm planning a new deck (completely replacing and enlarging an existing deck). The deck will be 25'x15' w/25 ft being attached to the house. I'm trying to determine what footings are required. ...
1
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1answer
78 views

Convert a switched receptacle to a non switched receptacle

This is a code question and I live in the US. Some background. My house originally had no overhead lights except for the bathrooms, kitchen and hallways. The rest of the rooms had just one switched ...
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1answer
55 views

dyeing grey water, standerds for how much dye to use

I am looking into grey water systems for a future house. In the course of researching, I learned that in states that have adopted the International Plumbing Code, you can use the water for flushing ...
2
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3answers
135 views

What's the difference between “physical damage” and “severe physical damage” in the NEC?

The 2014 NEC uses "physical damage" at various points to refer to well, hard knocks, if you know what I mean. However, certain passages in the NEC, such as 358.12 point 1 on EMT: Where, during ...
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0answers
47 views

When does a sleeve become a conduit, and how much can I fit in a sleeve?

According to National Electrical Code, the conduit percentage fill table does not apply to sections of conduit used to provide protection from physical damage (sleeve). National Electrical Code ...
3
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2answers
113 views

Locating buried electrical cable/conduit in yard

Our house, which we purchased about a year ago, has a shed in the back of the yard which has electricity and is roughly 100 ft away from the main house. From what I can tell the previous owner had ...
5
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3answers
240 views

Are there any restrictions on using crimped connections to electrical devices (receptacles, switches)?

As the title states, are there any code restrictions in general on using crimped spade and ring terminal connectors when wiring household electrical circuits? I've actually been doing this for a ...
3
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2answers
186 views

deck railing height with built-in benches?

If a deck (more than 30" off the ground) has a row of benches built-in to the perimeter, do the guard rails need to be measured from the height of the bench? I've been reading building codes they all ...
2
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1answer
36 views

How high of a structure can I build for growing hops

I would like to grow hops for home brewing and can't find any information on how high of an agricultural structure I can build without a permit, the people I am getting the rhizomes from say ...
3
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2answers
133 views

What are the code requirements for crossing a buried LPG line with an electric line?

Trenching for 1" Non-Metallic Liquidtight Conduit Type LFNC-B with 18" cover (10-3 W/G UF wire installed, 240V with 30A breaker) to serve a well. Just bumped into LPG line crossing conduit's path at ...
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2answers
98 views

How should I run stripped cable through conduits?

I have a 6/3 NM-B cable that is to be run through a Southwire Ultratite conduit to an external outlet for a generator. I plan to strip the cable prior to threading through the conduit: 1. for ease of ...
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0answers
66 views

Independent circuits on a common trip CB

Is it permissible under the 2014 NEC to feed two independent 120VAC branch circuits from a common trip (aka double pole) circuit breaker? The circuits do not share a neutral wire, and are ordinary ...
3
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1answer
102 views

ADSL + Ethernet Surge Protection. What is chaining?

I would like to protect my home network setup with surge protectors. The products I am looking at are: APC Essential SurgeArrest 5 outlets 230V APC ProtectNet standalone surge protector for ...
6
votes
3answers
332 views

Can I use metal masonry device (switch) boxes in a stud wall?

I am installing new wiring and need to place 5 lighting switches in one location (yes, I understand the problems/issues of confusion, etc.). These will all be 3-way switches, non-dimmable. I plan on ...
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1answer
91 views

Does the NEC limit the maximum size of junction boxes?

In this question, the OP has constructed a large junction box out of several extension boxes attached to a "regular" junction box: Is there any upper limit on the size of a junction box (either ...
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0answers
119 views

Coast 3-way — does this conform with Code?

For those who aren't familiar, the California or Coast 3-way switching arrangement is a method of wiring a three-way switch circuit that is used when both a switched and an unswitched hot are desired ...
3
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1answer
460 views

Is there a specific NEC code specifying the distance between water heaters and electrical panels?

I have a condo in a large building with many identical units. Several times other owners have mentioned that the original layout of the utility room isn't up to code due to the proximity of the water ...
3
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1answer
143 views

Listed electric baseboard heaters that permit installation below outlets

Are there UL-listed electric baseboard heaters that do permit being installed below outlets? The FPN in 210.52: Informational Note: Listed baseboard heaters include instructions that may not ...
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2answers
297 views

Code for elevating water heater in garages?

A gas/propane water heater in a garage is elevated. This is to ensure the open flame (at the bottom) is above a certain height (?) to avoid any combustible fuels in the garage from igniting. This all ...
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2answers
76 views

Does anyone have experience with insulating with waste-wool from shearing?

Does anyone have experience with insulating with waste wool from sheep-shearing. I am interested in washing and deodorizing techniques and also in the packing-density requirements. Plan is to use ...
4
votes
1answer
212 views

Is there a limit to the number of holes bored in a joist?

I already know that a hole bored in a sawn lumber joist cannot be within 2" of any edge or any other notch or hole, and that the hole can be a maximum of 1/3 the depth of the member (International ...
2
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2answers
213 views

Legal water heater replacement

I'm looking to replace my water heater. I currently have a 15 year old 40 gallon gas water heater, and it's time to go. I had several quotes from local plumbers, and choked at the prices. I'm going to ...
0
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1answer
84 views

What name could be used in building code for “interior drain tiles”?

I'm searching Chicago building codes for anything about drain tiles to be installed inside a home. http://dev.chicagocode.org/ is the site I'm using. They have a ton of material about the sump pumps, ...
3
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2answers
60 views

Does a 16“W x 13” deep counter space need an electrical outlet?

I have a 15"W x 24" Deep base cabinet. The counter top overhang is 1" on the front and right side. There is no overhang on the left side as there is a gas range there. There is a 15" W x 12" deep ...
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2answers
105 views

would a bathroom without a gfci outlet be a violation in a rented appartment

Would a bathroom without a GFCI outlet in a rented appartment be a violation? I have section 8 and my apartment failed inspection because of this.
2
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3answers
185 views

What are the code regulations for stairs off an exterior french door?

Do the stairs off my french doors need to be the width of both doors or can they be just the width of the most used side? How big does the landing have to be at the top and bottom? Can I just ...
1
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1answer
110 views

Can you wire a 30A 2P standard circuit breaker “downstream” from a 60A GFCI 2p circuit breaker?

Will this still provide GFCI protection? Is this against code? Does this represent a hazard? I have a subpanel with a 60A GFCI circuit breaker, that I want to use that to feed to 2 30a 240v ...
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1answer
73 views

Will roof work done by unlicensed volunteers pass code? [closed]

I go to a church in Chicago that needs a new roof for one of their facilities. For my own home, I can sign a Certificate of Responsibility where it is my job to insure that all the work is up to code, ...
4
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2answers
300 views

How should I run cables through interior wall to garage?

Please excuse me if this has been asked before, I searched previous questions but didn't find anything similar... I have my computer in our garage because of less noise, heat, dust, etc... also it's ...
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3answers
475 views

Concrete Footing or Concrete Blocks For Footings

I'm thinking of building a new deck at my new home that I just moved into. It's going to be a two level one. The highest level will be about 3 feet high. I'm not worried about code because its not ...
1
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1answer
80 views

Are licensed electricians required to perform code-compliant repairs?

A California licensed electrician replaced a circuit breaker for a friend. He removed the living room AFCI breaker and replaced it with a used non-AFCI breaker. When I heard this I was upset enough ...
1
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1answer
61 views

Code compliance for outdoor 20 amp receptacle?

Looking to add a 20 amp receptacle on the outside of my house, on a separate circuit. I don't know what NEC codes to look out for. It will be on the outside wall of the house, if that helps. The code ...
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0answers
131 views

What codes are invovled in running an overhead subpanel feeder to a detached garage?

This subfeeder will be going to a detached garage about 30ft away, and powering a 100amp subpanel. I'm not sure what codes are involved in this feat. I'd like to know the codes involved for ...
1
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2answers
96 views

Testing and proper breakers for a multi wire branch circit?

How do you determine if an outlet is part of a unidentified multi-wire branch circuit? Also, does code say MWBCs need to be on double throw circuit breakers and is it permissible to link CBs with that ...
0
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2answers
165 views

New residential toilets all so tall?

Are all new toilets high off the ground? Our existing toilets (one 20-year-old Toto and one ancient 5 GPF monster that I am shopping to replace) are around 14.5" from the floor to the rim of the ...
5
votes
1answer
137 views

Can a private electromechanical meter be placed between the utility's meter and the main breaker?

I want to run an experiment which compares the readouts of the newer electronic smart meters against older electromechanical meters. Is there anything in the NFPA 70 or any other law or code which ...
3
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3answers
194 views

Can I use old style individual faucets on a bathroom vanity?

We have an old home and would like to keep with the period where possible. I have a marble vanity top with individual faucets for hot and cold rather than a single spigot for both. I can buy brand new ...
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2answers
1k views

Can I drive a ground rod near a gas meter?

I am redoing the electrical in my 1940s house. The house has no grounding electrodes but the meter and panel are grounded to my water pipe outside in the front of the house. (This actually looks like ...
3
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1answer
126 views

Can two ground rods be bonded via a PVC conduit above ground?

According to my understanding, if a supplementary ground rod is installed, it must be bonded to the existing rod via a buried 6 AWG cable (NFPA 70). However, because virtually every side of my house ...
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2answers
151 views

Is it okay to drill a ground rod through pavement?

All the sides of my house are paved, and I need to drive a new ground rod for an antenna. Would it be against code (NEC) to drill a hole in the concrete to pound in a ground rod? Bonus question: How ...
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3answers
142 views

Do I need a permit to renovate a porch in NYC?

I want to renovate my 2nd floor porch, but I don't know if NYC requires a permit. My house was built in 1901, and I believe a CO is not needed because of the grandfather clause. But if I make any ...