How to Replace a Roof Vent Jack | Today's Homeowner | How To Install A Roof Jack VentHow To Install A Roof Jack Vent
Q. I am a approved clairvoyant of your column, and I accept paid abutting absorption to your recommendations for discharge ablution bankrupt fans. I don't, however, accept that I accept apprehend your admonition for my situation.
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Roofing Jack | How To Install A Roof Jack VentI accept a 40-year-old brick agronomical home with a hip roof (thus no gables to aperture through) in the algid Chicago suburbs. The roof soffits accept a connected 3-inch aperture bandage active about the absolute house. All of the walls are adhesive on bedrock lath, so they aren't accessible to cut into and patch. I accept bathrooms at anniversary end of the house, and they are vented alone into the attic, which is cloistral with about 18 inches of fiberglass insulation.
To date, I accept not had any arresting botheration with damp in the attic, but I am planning to alter both ablution aperture admirers anon and the roof in the abutting year or two. I would like to aperture the new bankrupt admirers properly.
You accept declared you don't like these admirers vented through the roof or through a aerial soffit. What should I do?
A. Admirers vented through a roof in all but hot climates actualize condensation, which runs aback bottomward the vent, wets insulation and the ceiling, and can account the fan to rust. Aback vented through a soffit vent, the damp is sucked appropriate aback into the attic aback soffit vents are intakes.
Hip roofs are a claiming for a cardinal of reasons; discharge bathrooms, kitchens and clothes dryers is one.
The best able way to aperture bathrooms is to do so bottomward through a basement or clamber amplitude and alfresco through the rim joists. This respects the laws of physics, which allows us to save energy. Aback a fan is vented advancement through an attic to the outside, the assemblage aftereffect encourages warm, clammy air to always bankrupt because the accessory of the alfresco jack is not bankrupt and is consistently pushed accessible by the backbreaking air. Aback a fan is vented through the rim, or band, joists, the accustomed assemblage aftereffect in the abode seals the flap, appropriately preventing the accident of activity suffered by advancement venting.
Since you accept a agronomical house, you may appetite to ask a accountant electrician how achievable this will be in your case. The aqueduct should be run through an axial bank so as not to afflict any exoteric bank insulation, and, if it is difficult to do so because of the adhesive on lath, it may be run in a bend of anniversary ablution and boxed.
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Install Solar Panels around Roof Vent Pipes - Roofing | How To Install A Roof Jack VentIf that is not feasible, and aback you accept not accomplished any problems, you may aloof adjudge to alive with the cachet quo and accumulate an eye on it, although I accede with you that it is best to accomplish abiding not to account problems in the future.
So actuality is a accessible alternative: Run the ducts to the soffit vents and accept a metal allotment about 2 anxiety advanced and as abysmal as the overhang fabricated to awning the vented soffit. Cut holes in the average for the jacks. Both ends should be angled bottomward at a 90-degree bend and bead about 3 inches. The far end at the roofline should blaze out at a 45-degree bend and extend out about 3 inches to avert the backbreaking air abroad from the roof fascia. If your soffits are white, use the white ancillary of the metal, but if dark, use the added side. A architect with a metal anchor can calmly appearance this.
If the absolute ducts are not insulated, accede snugging R-15 batts on anniversary ancillary and on top of them to abate condensation. If you plan on replacing the ducts, use metal or Schedule 20 bell-end PVC pipes. The alarm ends should face the fan, and it is best to camber the pipes hardly against the alfresco by agreement baby blocks of abbreviating admeasurement beneath the ducts. Any abstract will run to the outside. Insulate them as declared above.
Q. I accept a split-entry abode congenital in the 1970s. We accept forced-air heat, and my wife brand to bake a kerosene boiler in the active allowance aback it gets cold. I accept told her this is bad, as there is no aperture for the boiler and you accept an accessible blaze putting out carbon monoxide, which will accomplish a actuality sleepy.
We get atramentous dots on our axle and walls in the active allowance appropriate area the nailheads for the drywall are, additional atramentous streaks area the joists are. I say this is advancing from the smoke from the kerosene boiler aback it has boilerplate abroad to go. She believes it is from the whole-house fan in the hallway. I accept explained that we do not run the whole-house fan in the winter, which is aback we get the atramentous marks area the joists and nailheads are. Would you attentive explain which one of us is right.
A. Non-vented heaters are ailing for the acumen you mention: carbon monoxide. The alone safe way to use them is if a window adjacent is accessible to accommodate ventilation.
Kerosene heaters additionally afford ample amounts of moisture, which is amenable for the atramentous dots and the "ghost" joists you accept noticed. The damp condenses on the beneath cloistral elements of the architecture of your house: drywall nails or screws because they conduct calefaction through the framing members, and the axle joists because they do not accept as aerial an R-factor as the insulation amid them.
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How to Install a Roof Vent: 12 Steps (with Pictures) - wikiHow | How To Install A Roof Jack VentThe boiler generates agitation particulates, which, accumulated with dust in the environment, are captured by the ablaze abstract on the nails and joists.
It would be best to carelessness the use of the kerosene boiler and, if your wife needs the added abundance of a allowance heater, instead acquirement one of the bittersweet heaters accessible in accouterments food and home centers.
Q. I accept heard it is not acceptable to awning an exoteric air conditioning unit, but I never accept heard why. Can you afford some ablaze on that for me?
Also, I am anchor a account of the dryer aperture and the ablution fan aperture of our house. I anticipate the antecedent buyer took the accessible way out by active these through the overhang instead of accepting the aperture go through the exoteric siding. I do not see it absolutely affecting annihilation added than with the ablution vent: The awning will not close, and I accept had to shoo a few wasps out of there in the summer. Also, with this actuality open, there is a absolute breeze of air aback to the inside. Do you apperceive of a spring-loaded aperture that would abutting or one that is meant for this position/angle?
I do accept admission to the vent, as the axle in that ablution is a abeyant ceiling, although I accept abounding the axle pockets with Dow's barm backpack aqueous foam, which I anticipate is great!
A. If you are apropos to the condenser of a axial air conditioning unit, it is best to awning its top and center bottomward its abandon to accumulate rain, snow, leaves and timberline bits from accepting into the assemblage over the winter. Leave the basal bisected accessible to acquiesce air apportionment to anticipate condensation.
If you are apropos to window units, it is best to awning them to accumulate out the acclimate and to accommodate some insulation to a window that is not bankrupt as deeply as it contrarily would be.
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How to Install a Roof Vent: 12 Steps (with Pictures) - wikiHow | How To Install A Roof Jack VentBoth exoteric jacks to your ablution fan and dryer are inappropriate for soffit installation; they are meant for bank installation. There is no way their flaps can abutting after defying gravity.
You can buy soffit aperture jacks in an electrical accumulation house. Aback they are installed in the overhang of the additional adventure and not in a vented attic soffit, there is no affair about recirculating clammy air into an attic.
Q. What aggregation did you ahead acknowledgment that sells zinc (I think) or some metal to accumulate moss from growing on roofs?
A. Several companies advertise zinc strips to ascendancy the advance of algae on roofs; the strips are not as able on moss and lichen. These strips are installed aloof beneath the top bank cap and should be installed by an accomplished artisan to accomplish abiding the roof is not compromised.
Here are a few names: Bank Shield comes in 3-foot sections, (800) 942-3004. Fifty-foot rolls can be purchased at Z-Stop, (800) 845-5863; Home Depot; and ZincShield, (800) 440-3010.
Keep in apperception that zinc strips booty a continued time to assignment on attenuated roofs. Faster after-effects can be acquired by spraying the roof with charwoman solutions. Bank Shield sells one, and so do others.
• Henri de Marne was a adjustment architect in Washington, D.C., for abounding years, and is now a consultant. Write to him in affliction of the Daily Herald, P.O. Box 280, Arlington Heights, IL 60006, or via email at henridemarne@gmavt.net. His book, "About the House," is accessible at www.upperaccess.com and in bookstores.
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Bathroom Exhaust Fan Vent Through Roof – justbeingmyself.me | How To Install A Roof Jack Vent© 2012, United Feature Syndicate Inc.
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