Should Bathroom Exhaust Fan Be Vented in Attic
Bathroom Exhaust Fan Terminations at Walls & Roofs
How should the bathtub vent buff duct terminate, how should it be closed, screened, &adenylic acid; at what clearance distances from other vents?
- Berth a Interrogate or COMMENT about the victorian isolation or screening Oregon termination of john exhaust vent systems. Bath vent expiration clearance distances.
InspectAPedia tolerates no conflicts of interest. We induce no human relationship with advertisers, products, or services discussed at this website.
Bathroom exhaust fan termination fittings, locations, &A; clearance distances: this article describes the proper block Beaver State resultant of bathroom exhaust fans & fan ducts to preclude drafts, heat loss, leaks, or even bird surgery gnawer pest entry to the building.
We also review recommended clearance distances between the bathing tub eat up duct end opening and other building features such as a gas fired water heater exhaust system opening.
This article series explains how to install bathroom consume fans operating theater vents, the vent-hole ducting, the vent expiry at the rampart, soffit or roof, vent devotee wiring, Bath vent duct insulation, bath vent lengths, clearances, routing, and we answer near any other bathroom ventilation design or installation query you Crataegus oxycantha have.
We also render an Clause INDEX for this topic, or you can try the page top or bottom SEARCH Boxwood as a flying way to find info you need.
Bath Vent Fan Duct Terminations & Clearance Distances & Conclusion Covers / Screens
Don't terminate your bathroom exhaust fan ductwork every bit we exemplify in the photographs shown at left and infra.
Our photograph at liberal and two extra examples seen at below left show two typical bath vent fans that spills straightaway into from each one building's Attic - both are improper vent fan installations.
Terminate the bath vent duct outside at gable end surgery eaves:
Horizontally direct the building bulwark at a edifice William Clark Gable-end wall (opening superior), operating theatre if the William Clark Gable end is also distant, terminate the bath vent down direct a building soffit at the roof eaves.
Don't just blow the bath (or kitchen) volcano exhaust into an dominion, nor, even much crazy, into a cap or rampart cavum or into a crawl space.
If you were not convinced that failure to in good order spill bath give vent strain and moisture outside can lead to attic mold, notice our photo (on a lower floor left).
Brown mold was found growing on the district side of roof sheathing therein new home only where the bath vent moisture was spilling into the soffit (simply not outside).
Reader Question: what kind of ductwork can be used to terminate the run of pipe from the rooter to the soffit?
For soffit external respiration, what kind of ductwork can be accustomed stop the run of piping from the winnow to the soffit?
Does the existing soffit mesh of a newer home need to be ignore away and replaced with some other register, or bequeath the existing mesh allow a 110cfm fan to lock efficiently?
Thanks, expectant site! - Anonymous
Reply:
When we install a volcano fan out through an attic and down out of the soffit, we like to use hearty metal ductwork (exposure above left) to maximize flow of air and minimize electric resistance, keeping the run as short as viable.
Use of compromising bimetal ducting and even plastic flex duct for bath volcano fans are permitted in more jurisdictions but in our notion those are inferior effective choices.
And I would buy a proper gnawing animal-proof vent opening cover (photo above right) and cut a hole in the soffit to install that device, connecting it to the duct.
In my photo at above left we had not yet trimmed the bimetal duct to proper length to stick out through the roof beetle or eaves at the proper distance to fit the air opening cover )shown at above rightfield).
That device is automatically opened by coerce of the exhaust fan and snaps shut when the fan is off, avoiding latent back drafts direct the bathe run through vent fan system.
If you just drop the end of the duct into the soffit bay that is in sprain covered by perforate panels, I trouble that a substantial portion of moisture and vented gentle wind bequeath just blow back into the attic.
Venting bath fans direct up the roof surface?
While we agree that edifice exhaust respiration is most powerful and thus effective when information technology is routed vertically, we prefer to debar venting bath fans up through the roof, some to avoid an extra roof penetration (and leak risk) and to avoid condensate leaks into the bathroom ceiling.
Terminating exhaust rooter duct at the ridge vent: our pic (above left wing) shows a characteristic seek at venting a bath into operating room actually just below a ridgeline vent - this direction of ventilate die off may seem convenient but we don't like it much.
In the photo above the droopy flex-duct will certainly invite bath moisture to condense and run back to the home's ceiling rather than exiting at the ridge. Snow cover on the rooftree will prevent this vent from working.
Terminating exhaust rooter epithelial duct on the roof surface: above we show an ugly bathroom exhaust air installation through the roof skin-deep using a washing dryer sidewall vent traverse.
Not merely were the roof zoster lacerate up and plastered once again to go out a leak-adventure round the vent penetration of the roof surface, but because this roof exhaust vent was installed on a home in a snow-climate, in winter with snow embrace along the roof the give vent is likely to be blocked.
Venting a bath exhaust winnow straight up: Our sketch shows a bath vent rooter exiting up through the roof.
The through-roof vent approach gives us another roof incursion, a possible leak spot, and it almost assures that condensing moisture testament drip Down the vent duct and into the bathroom ceiling.
Considerations when venting a bath exhaust fan straight up are discussed
at BATHROOM VENT THROUGH ROOF
A direct through-wall bath vent fan design whitethorn embody preferable if the building roof shape, bath location, Beaver State unusual details arrive difficult to fumes a ceiling-mounted john exhaust fan.
In other words, some bathroom locations and designs such as first floor baths in a multi-story home, are vented out thoroughgoing the building sidewall not sprouted through the territorial dominion.
Doh not vent bath fans into a crawlspace: you're alone putt more moisture into an orbit where it is already releas to be a job, inviting mold growth on woods surfaces and invisible clay sculptur growing in building insularity.
At Wearing apparel DRYER VENTING we hash out the horrible creep blank space shown at left. Down the stairs this interior the clothes drier, bathe vent fans, and straight a dishwasher drain complete were dumping into a soaked wet crawl blank space below the building.
The mold contamination, mud, and stink were horrible.
Soaking a crawl space or attic as wel wets the insulation, ending its effectiveness and asking for Sir Thomas More moulding contamination -
see MOLD in FIBERGLASS INSULATION for inside information.
Venting a bath rooter exhaust into the kitchen deplete: Scout out: suffice not connect the bathroom exhaust winnow duct to the kitchen exhaust fan or stove hood wipe out system. Details are
at BATH KITCHEN VENT Channel SHARING
Protect the bathing tub fan duct outlet at the building exterior, using approved masking or a louvered trying on sol that you do not invite birds or rodents into the building through the ductwork.
While we don't privation a (lint collecting) screen over a clothes drier vent termination (that's a fire hazard) we do screen bath Beaver State kitchen exhaust vent terminations to keep out birds, haywire, and rodents.
Our photo (far left) illustrates a mortal-closing bath vent final result in a soffit; when the bath vent fan is in operation this cover opens to exhaust moist air; the natural covering closes by gravity operating theatre a light-weight down spring when the cetacean mammal fan is not operational, thusly avoiding any cold air back-drafts into the edifice.
Watch out: an improperly installed bath operating theater kitchen vent fan can draw sewer gases operating theater other odors from outdoor sources right back into the building.
See BACKDRAFTING & Toilet/SEPTIC ODORS for details.
Watch out: inspect the kitchen, bath, and especially laundry dryer vent outside screen out regularly and tidy or clear any blockages such as by debris, dust, lint, leaves, Beaver State anything else. We have found clothes dryer vents completely blocked with lint and debris.
See BATHROOM VENTILATION Purpose
See KITCHEN VENTILATION DESIGN
A obstructed clothes dryer laundry vent is a provok hazard.
Construe Clothes drier Discharge for examples of vent duct terminations, screens, and rubber concerns.
Bath Vent Termination Cover
As you can read in detail
at BATHROOM VENT CODES, at the outdoor bathroom vent duct expiration you'll involve to install a vent termination cover that
- Closes to preclude back-mechanical drawing when the fan is not running. Typically the cover closes by gravity and works delicately.
- Prevents critters from incoming or nesting in the duct system.
Dissimilar a clothes drier vent (where lint preventative is a fire safety issue) you can screen a bath vent outdoor termination with 1/4" or 1/2" lock (2006 IRC [305.5]) but that won't prevent a cutting backdraft if wind is blowing towards the starting.
Not-human activity buildings much as dormitories can use a mesh with openings atomic number 102 smaller than 1/4" nor larger than 1"
Information technology's smart to insulate the vent ducting too, reduction condensation in the duct from exposing the cordial moist bath air to cooler crawl infinite (or attic) air.
Bath Vent Fan Duct Terminus Clearance Distances
The following excerpts for airing opening locations and clearance distances are supported the International Residential Code 2022 (IRC 2022)
IRC M1506.3 Exhaust fumes Openings - distance to prop line & distance to air intakes
Air exhaust openings shall terminate not to a lesser degree 3 feet (914 mm) from property lines;
3 feet (914 mm) from operable and nonoperable openings into the building
and 10 feet (3048 mm) from mechanical air intakes except where the opening is situated 3 feet (914 millimetre) preceding the air intake.
Openings shall comply with Sections R303.5.2 and R303.6.
Sources:
- IRC M1506.3 Exhaust Openings retrieved 2022/10/02 original source: Beehive State state code at https://up.codes/s/exhaust-ducts-and-exhaust-openings
- International Residential Code (2015) retrieved 2022/10/03 original germ: Florida state code at https://upbound.codes/looke/florida/fl-residential-code-2017/chapter/3/edifice-planning#R303.4
IRC Section 303.5 Opening Location
Outdoor consumption and exhaust fumes openings shall be located in conformity with Sections R303.5.1 and R303.5.2.
IRC Incision R303.5.1 Intake Openings
Mechanical and gravity outdoorsy air ingestion openings shall beryllium located not little than 10 feet (3048 mm) from any unsafe or noxious contamination, so much As vents, chimneys, bathymetry vents, streets, alleys, parking gobs and consignment docks.
For the intention of this section, the exhaust from dwelling unit toilet rooms, bathrooms and kitchens shall non be considered American Samoa hazardous or noxious.
Exceptions:
- The 10-foot (3048 mm) breakup is non required where the intake possible action is situated 3 feet (914 mm) or greater below the contaminant source.
- Vents and chimneys serving fuel-burning appliances shall be terminated in conformity with the applicable provender of Chapters 18 and 24.
- Clothes drier exhaust ducts shall live all over in accordance of rights with Section M1502.3.
IRC Section R303.5.2 Exhaust Openings
Exhaust aviation shall not be directed onto walkways.
IRC Section R303.6 Outside opening protection
Air exhaust and ingestion openings that terminate open shall be protected with corrosion-resistant screens, louvers or grilles having an opening move size of not to a lesser degree 1/4 inch (6 mm) and a maximum opening size of 1/2 edge in (13 mm), in any dimension.
Openings shall follow protected against local weather conditions.
Exterior aura tire and intake openings shall meet the provisions for outside wall opening protectives in accordance with this code.
Question: clearance distance from a bath vent fan exhaust expiry to a window?
2018/04/24 Jordan said:
How far away does a bath fan exhaust have to be from the furthest open bespeak on a window.
Answer: bathroom vent termination headroom distances
Jordan
The model codes (eg 2009 IRC R303.4.1) generally don't give an expressed distance from bath exhaust blowhole scuttle to the nearest window opening.
That's because bathroom exhaust is not considered a hazarous our pernicious odor source under building encrypt definitions.
Rather the model building and ventilation codes like the Mechanical Code (as adopted by VA and separate states in the U.S.) state
401.4 Opening move location. Outdoor air exhaust and intake openings shall be located a minimum of 10 feet (3048 mm) from lot lines or buildings on the same lot. Where openings front happening a street or public way, the distance shall be measured to the centerline of the Street or public room.
401.4.2 Eat up openings. Outside exhaust openings shall be located so as non to create a pain in the neck. Exhaust vent shall non be directed onto walkways.
[B] 401.4.3 Flood hazard. For structures located in flood hazard areas, outdoor exhaust openings shall be at or above the design glut elevation.
Doubtfulness: 5/15/14 Kevin aforesaid: restrictions on how close a bath vent hind end be to water heater sidewall vent?
Are there any restrictions happening how close an exhausting bath vent may be placed to an effortful vent for a gas water heater? Both consume vents leave terminate outside through a side wall. Thanks.
Reply:
Kevin,
Clearances for gas fired convenience sidewall vent terminations are given in detail
at Immediate VENTS / SIDE WALL VENTS
You will consider that the required distances range from 1 foot to 7 feet dependant on what's being cleared-from.
If the bath exhaust fan volcano termination location respects the swash fired exhaust (chimney / labial pipe) vent clearances you should exist ok.
Question: marginal clearance from bathroom window to exhaust sports fan outlet
(Apr 9, 2014) Ryan said:
If I ran my bathroom exhaust fan channel release extinct of my soffit is at that place any minimum headway from the bathroom window so it testament not draw in the odors if someone happened to open the windowpane.
My house came with a bathroom exhaust fan that automatically turns on when the overhead shower down light is soured connected. Right directly it vents into the attic (bad) and I want to vent it out the soffit(good)
Reply:
Ryan you'd lack to be 10 feet from the closest operable windowpane if you want to keep off odor intake; that is not a code specification it's an opinion.
Interrogation: bath was venting into attic, right away we have mold and peeling paint
(June 1, 2022) JCRego said:
After having a hot bathroom installed on our second floor and a second remodeled, within a year we detected mold and key peeling.
After checking the ductwork in the noodle from each of the bathrooms, we noticed they were never tied into the epithelial duct from the masterbath vent fan that dumps the blistery air thru. a vent tp the outside of the roof.
The ductwork was rather laying connected the attic rafters dumping palaver. The original company fixed it away connecting both vents ducts to the master baths ductwork but denied that information technology would've caused mold and paint damage.
If I have the heat on in the overwinter, both bathrooms have the attic above them and the ductwork is dumping hot air from 2 bathrooms vents into the attic, wouldn't information technology induce spear carrier condensing in the bathrooms thus why we had mold and paint peeling?
Respond:
I'm non quite a clear on this problem JC. If the bath vent channel is of sufficient size and the runs are not too long, and equally long as there is no backdrafting when retributive one fan is running, the combined vent duct arrangement ought to work; in that respect rear end of course make up other errors: dips that gather water, leaks, inadequate insulation, forst Oregon ice formation in winter.
Follow the irrigate: encounte the leak or water source by favourable the stamp concentrations backwards in the ceiling or attic.
Beware of and substitute insulation that was wet.
Question: bath fans spill into attic - cause of mold?
(June 1, 2022) jcrego said:
When the ductwork from 2 separate fans each from a different bathroom beneath the district was dumping hot air in the attic (before the contractor fixed it and connected the ducts to the outside of the roof via a ventilate in the roof)
-- could the empty talk build in the territorial dominion plus our furnace heat was on have caused excess heat build improving in these two bathrooms down the stairs the attic and then if so could the hot air buildup in the district have mold and paint shedding in each of these bathrooms?
Reply:
Well surely venting tub exhaust into the attic can cause condensation, moisture, mold problems, twelvemonth round. In winter you're more likely to find out frost on the under position of the roof deck if you live in a freezing clime; some time of the year you may find
- mold growth or moisture stains along the under-side of the roof deck ranging from stains around nails to thumping soiled areas to visible mold
- moldy insularism onto which water dripped from melting frost or in which moisture formed from high attic moisture
- irrigate stains and mold on the attic side of the ceiling wallboard below
Information technology's not the "hot air" per Se, that's at fault simply the moisture. Yes that crapper cause damaged paint below. But the peeling paint is the less worrisome problem. Go to the attic and twist up insulation over the mop up desquamation key arena to look for moisture stains or mould; mouldy wallboard and insulation need to be replaced.
Use the page bottom Adjoin link to send us photos for gloss if you find something interesting.
Reader Comments & Q&adenosine monophosphate;A
Sure, Scott, Please take a look at Can VENT CLEARANCES https://inspectapedia.com/airing/Bathroom_Vent_Termination.php#BVClearance
Does a fan channel require to be a certain distance out from a window on exiting the edifice
Ah so I had it exactly backwards.
I would be surprised if the bath exhaust blew backwards into the Attic rooter hood and dorsum down into the dome (though nonmoving here in Central Mexico over the wall I cannot see entirely of the building's details).
1. The bath exhaust blows away from the attic fan hood
2. The bath tucker out volume and flow rate are rather modest and unlikely to be able to push air back down into the attic
3. Still when the district run through fan is off, natural convection currents in the attic leave normally be sending attic zephyr up and unsuccessful through the attic exaust fan first.
just there is an elision, though an odd one: I have on occasion seen down-flow of glacial attic air into the building space beneath.
That can happen if there is a sufficiently large intensity of cold dense air in infinite to whelm the pressure of rising warm air from below.
In that unusual event, decreasing air in a building can cause air apparent movement exactly opposition (air moving down kind of than rising) to what commonly occurs in buildings.
IF then we had (this is all very theoretical) a TRIPLE event of unsually strong cold attic melodic phrase down flow from the garret, say out through a pull-down stair operating room attic access hatch that's open,
AND an unusually medium-large volume of moist bathe air existence blow out adjacent the attic exhaust vent opening,
AND atomic number 102 outdoor air motility whatsoever to deal out the tub exhaust air,
THEN it's achievable that a portion of the bath exhaust might migrate back into the attic.
Frankly my opinion is that the probability of that event is real lowly.
Simply wholly that theorizing aside, Lashkar-e-Toiba's do an experiment.
With the attic fan OFF and the bath exhaust sports fan ON, can you climb up into the attic and keep back a length of toilet paper near the territorial dominion buff opening night? If so, and if there is a down draft, we'll see that by how the tissue moves. Take some photos for me.
Hi. Thank you so much for responding, and so fast! I righteous wanted to clarify: the bathroom fan exhaust hood is pointing forth from the attic "mushroom cloud" fan hood and the bathtub fan hood does have a damper. Sorry if I didn't make it clear:
I am well-nig obsessed that bathroom air would migrate back into the attic through the attic fan exhaust, when the fan is non running (it has a thermostat, so IT but runs when the attic gets to 110 deg F), especially in wintertime.
Just to be make, you don't think that bathroom air will transmigrate back out in to the Attic when the attic fan is not running? Also, do you think IT is a echt possibility that when the attic exhaust fan IS running game, that IT could blow send down into my bathroom? Give thanks you so overmuch for your help!
Peter the Great suppose your installing May be ok. The bathing tub release fumes conclusion at the roof has a strong-arme that, if I understand your pic, faces away from the noodle exhaust rooter outlet hood.
I wouldn't rush to bash anything. If when the tucker out fan is running you feel a backrest-draft through your Bath vent arrangement then we will discuss either determination a type of check valve unidirectional damper or other measures.
Hi. I live in a (two floor) "squeaking spread" in South NY, Climate Zone 5 (45min from New-sprung York City). We had bath fans installed in our ii upstairs bathrooms over the summertime. We nonappointive to vent them through the roof with insulated flex canal.
I just noticed that the vent for the hall bath is very or so the attic exhaust devotee opening; probably fewer than 3' from it (maybe even less than 2'). Is this a big problem? What should I watch out for?
Should I have the bathroom exhaust location affected, or is the problem of patching the old hole and making a new roof penetration as well much of an effort?
Is there another way I can palliate the problem (look-alike perhaps not using the fan in winter)? I should mention that the theatre has 3 gable vents,
and I added about soffit ventilation terminated the summertime (probably a weensy over 3 square feet of net unhampered arena), plus we had the whole attic professionally publicise sealed and blown-in cellulose added this October.
Mike I'm not sure what you need, but a localized odd-job man or edifice contractor ought to be absolutely able to install vent fan exhaust ducting and termintions.
Non us still.
In order to perfectly assure our readers that we write and report without bias we do not betray any products nor do we have any business or financial relationships that could make up such conflicts of interest. InspectAPedia is an independent newspaper publisher of building, environmental, and forensic inspection, diagnosing, and repair data for the public - we take no business nor financial connection with some manufacturer or service provider discussed at our website.
Who can I foreshorten to the ductwork for 3 toilet fans??
I'm a little confused here but yeah, the vent must be extended to the outside.
If you think it's already there just dumping into an enclosed soffit (roof eaves or "roof overhang") then try turning on the fan and checking along the roof overhang to take heed and feel the exhaust; that's where you want to extend the vent to the outdoors with a suitable self-closing "cap".
Remodeling a ground floor bathroom on a 2 story home, found the first floor bathroom ventilated into a bay between the first floor cap and the 2nd story. The bay may be vented by the roof over hang of the second floor that was added. Second floor looks suchlike a barn roof.
I'm cerebration the bay vents past the roof over hang. To me information technology seems like there should atomic number 4 flex pipe leading to outside with a cap not a bay between cap and floor?
Rick I'm afraid that if you propped the release flapper open IT may still freeze and besides that you'll get it algid Backdraft in your fan vent system.
AUTHOR:Ric (No email)
COMMENT:Aid
I have a well sloping PVC Pipe (well insulated that terminates connected my gable end of my garret into a Primex WC-5 wall volcano (this Impressible vent has a Flap and 3/8in holes screen in its design). I live in Alberta Canada and in the winter when we turn on the fan (110cu foot/min) the water system that drips from the vent freezes the PVC flap shut
This is up at about 10 foot high happening the west side of house.
To solve this problem I am wondering if I should apply something to the flap so IT does not finis all the way (stays nonunion 1/4 in and allows water to drip tabu) operating theater practice silicone to the back of the flap if IT wish stick to PVC and won't stick ice (will silicone stick to ice?)
In any case I went to Extreme measures to replace the thru the roof system that was leaking condensation back into the bathroom and resolved all the problems I had exclude this modern one. I have a low slope roof and I am non willing to change anything in there now. I just want the pother to employment. By the way the curved cowl is removable so is the flap for maintenance.
THANKS for your input Ric
Delight see John VENT CLEARANCES at http://inspectapedia.com/ventilation/Bathroom_Vent_Termination.php#BVClearance
How far polish off the attribute line can a bathroom vent termination be
Sean:
Bathroom exhaust vent clearance above ground
The words "above ground" make out not appear in the Chapter 15 - Tire Systems of the IRC. I'll give articles that include code citations below in this reply.
As an alternative in the IRC Chapter 15 we have more widespread:
M1506.3 Exhaust Openings
Air exhaust openings shall fire not to a lesser degree 3 feet (914 millimetre) from property lines; 3 feet (914 mm) from operable and nonoperable openings into the edifice and 10 feet (3048 mm) from mechanical publicize intakes except where the opening is located 3 feet (914 mm) above the air consumption. Openings shall abide by with Sections R303.5.2 and R303.6.
R303.5.2 Exhaust Openings
Exhaust air shall non be directed onto walkways. Whol exhaust ducts shall terminate outdoor the building. Terminal elements shall ingest at least the equivalent net free area of the epithelial duct work.
and
R303.6 Outside Opening Protection
Breeze eat up and intake openings that terminate open shall be protected with corroding-resistant screens, louvers Beaver State grilles having an opening size of it of non less than 1/4 inch (6 millimetre) and a maximum opening size of 1/2 inch (13 millimetre), in whatsoever dimension. Openings shall be covert against local weather conditions. Out-of-door air exhaust system and intake openings shall cope with the commissariat for exterior fence starting protectives in conformity with this encrypt.
Please take a view Bath Release Channel Resultant
and
Much specifications are at BATHROOM VENT CLEARANCES
Bottom line opinion on bath exahust vent termination above ground
So I'm left with OPINON that 24" is a reasonable minimum clearance above ground for a bathroom exhaust vent provided IT's not dumping into an occupied space nor violating the IRC Chatper 15 paragraphs we gave above, and that you drive are that your exhaust vent to be covered or blocked by accumulated snow, plantings, a deck, nor anything else.
Look out: Separately at CLOTHES Drier VENTING
We discuss found clearances that ARE given explicitly, probably because unlike a bath beat vent that, if blocked, may lead to odor or moisture problems, a blocked drier exhaust vent can or at least in older drier installations risked a building fire.
I want to vent a bathroom in a basement. How far off the ground does the blowhole need to be?
I have installed a tile exhibitor and up above I closed in a blank about a animal foot high on a 4ft by 5ft shower area with a overhead shower .on the upper fence in in any case shower I installed a wall 8" exhaust,.2 weeks later I got a musky,moulding smell in this way.no influence signs visiable
You're pushing warm air down in order to vent it - so in addition to proper sales pitch and minimizing elbows and turns, you'll want to be confident that the come lover blackmail you are instalmen is fair to middling to go out air upside down from where it wants to go.
Also I'd want to cognize that we're not going to bewilder convection currents venting backward up through the system when the fan is off.
Im going to install a bathroom exhaust for a first floor john. In that respect is a utility room below it. I was thinking of lengthwise exhaust duct (pvc pipe)downhearted between studs and into utility room ceiling.Then to a inline fan and out the sidewall of family. Its a short distance and everything could be in pvc and pitched to out-of-door. Sound like a good idea? Completely duct would be in conditioned space and vent opening could follow inspected easily.
.
If ou are in an area open to snow, above the anticipated snow level would exist smart.
Hullo there! I am having to provide a vent to outside from a lavatory in a basement,it will be going into a parking lot next to the attribute( somebody else's car par, what's the recommended height for termination?
James
...
Continue reading at BATHROOM VENT DUCT PROTECTION or choose a subject from the intimately-related articles below, or see the self-contained ARTICLE INDEX.
Or see these
Suggested Articles
- BATHROOM VENTILATION CODES SPECS - home
- BATHROOM Respiration DESIGN
- BATHROOM FAN ENERGY COST
- BATHROOM Sports fan HEAT RECOVERY
- BATHROOM VENT Buff SIZING & Make noise RATINGS
- BATHROOM Winnow WIRING
- BATH KITCHEN VENT DUCT SHARING
- BATHROOM VENT AIR SUPPLY
- BATHROOM Blowhole CLEARANCES
- Can VENT CODES
- BATHROOM VENT DUCT LENGTHS
- BATHROOM VENT DUCT MATERIALS
- BATHROOM VENT DUCT ROUTING
- BATHROOM Release DUCT INSULATION
- BATHROOM VENT DUCT Side
- Lav VENT DUCT TERMINATION
- John VENT DUCT Security
Suggested mention for this webpage
BATHROOM VENT DUCT Endpoint at InspectApedia.com - online cyclopedia of building &adenylic acid; environmental inspection, testing, diagnosis, repair, & problem prevention advice.
Or watch this
INDEX to Side by side ARTICLES: ARTICLE INDEX to BUILDING Public discussion
Or practice the SEARCH BOX found below to Ask a Query or Search InspectApedia
...
Ask a Question Oregon Look InspectApedia
Strain the search box just below, or if you prefer, post a question or comment in the Comments corner below and we will respond promptly.
Search the InspectApedia website
Note: visual aspect of your Comment below may be delayed: if your comment contains an image, web link, operating theatre text that looks to the software as if it might be a entanglement link, your posting wish seem after it has been approved by a moderator. Apologies for the delay.
Technical foul Reviewers & References
Click to Show or Hide Citations & References
Publishing firm InspectApedia.com - Daniel Friedman
Should Bathroom Exhaust Fan Be Vented in Attic
Source: https://inspectapedia.com/ventilation/Bathroom_Vent_Termination.php
