Questions tagged [attic]

Attics (also called "lofts") are the space immediately below a house's roof.

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1answer
32 views

Attic Fan and LEDs

My attic fan stopped working, I swapped it out for a new fan with thermostat. Still not working, I suspect that recently installed LED lighting in my kitchen may be causing this problem with the attic ...
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Attic Insulation Questions

We live in an early 1970s ranch style house. Single story. Attic formed by the 2x4 trusses on 24 inch centers. The insulation is R13 batt layed on top of the ceiling dry wall but this has been removed ...
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Attic Fan in Garage of Ranch Home

My attached 2 car garage typically gets over 100 degrees in the summer. I have an insulated garage door. The garage has a sheetrock ceiling and attic space above that is connected to the rest of the ...
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2answers
62 views

How to correctly add flooring to insulated attic

My attic is well-insulated with fiberglass insulation strips laid between the joists, silver thermal wrap stretched across the joists, and 18-20 inches of blown insulation on top. But as I ...
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1answer
41 views

Remove soffit / refrofit attic rafter baffle vent

Will I be able to pry down this soffit venting/siding to secure baffle/rafter vents (I understand you really want to secure down that leading edge so you don't have creeping underneath and hitting the ...
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can I vent a bathroom vent through an existing gooseneck?

Can I vent a bathroom vent through an existing gooseneck attic vent? I already have another gooseneck and two gables along with soft vents.
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28 views

Insulate back of high and low voltage gang boxes in attic

We just finished building a home, and I prewired an equipment closet upstairs for handling all of my networking, home theater and whole home audio equipment. It looks like this: All the single and ...
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1answer
67 views

Can this joist support be replaced with plywood?

The attic above my garage has several of these horizontal support beams across the ceiling joists, I assume to keep them from bowing. I’d like to put down plywood across the whole floor without these ...
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Will birds in my loft affect me selling my house?

I hope this is the correct S.E for this question, if not, please direct me to the best one. I have got birds in my loft, I went up and saw one earlier today. Normally, that isn't a problem, I would ...
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3answers
66 views

How do I balance an attic fan?

I have recently replaced a motor for my attic fan because the original one burned out. I did measurements for the height of the fan blades in relation to the supports and ensured that when I re-...
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25 views

Diagnose poorly functioning whole house fan

I installed an AirScape3.5e whole house fan. I don't think the fan is operating at its max potential. It just doesn't seem to cool the house down very much when running even when the outdoor ...
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57 views

Why multiple pipes in attic?

I have a single story house, built in the late 40s, with a small kitchen and one small bathroom. I was up in the attic checking something and noticed multiple pipes running to the roof -- all located ...
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28 views

Is it possible to use a scaffold ladder as access to loft?

I am looking for affordable, safe access to the 7'x 7' sleeping loft we are soon to build and came across a scaffolding ladder with handrails for under $100. Is this a crazy idea or a viable option? ...
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65 views

Loft conversion - steel beam sticking out

Good afternoon, We have started loft conversion today. Sadly after builders uncovered the roof they discovered that unlike structural engineer's assumption (they were buried under insulation), the ...
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AC unit not turning on

My A/C doesn't come on when I set the temperature on the Braeburn thermostat very low. Also, the recirculation fan doesn't come on when I set the thermostats fan setting to 'on', as though the indoor ...
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3answers
124 views

Running romex in 20" attic space using pipe hangers

My drywall ceiling is attached to 2x6 joists 16" OC. Then, a 10" air gap above these joists are the 2x6 rafters 32" OC, for my flat roof just above. Even though the home is 1955, I have knob & ...
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1answer
37 views

Adding (small) load to existing rafters with 2x4

I am planning on installing a whole house fan (shown in the image below). The fan has a total system weight of 40 pounds and needs to be supported via metal and nylon straps to a beam as shown in the ...
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111 views

Open cell spray foam off gassing 2 years later. How to fix?

My home was built in 2017 and has Accella open cell spray foam in the unvented attic. In spring & summer 2018 we noticed a mild chemical smell coming from the attic on hot and/or humid days. It ...
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1answer
63 views

Replace Attic Fan Without Going on the Roof

I'm attempting to replace the motor of my attic fan. I've disconnected everything else, but I noticed after I removed the nuts on the support bars that I can't pull the fan and motor through the ...
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1answer
29 views

How should location on roof be flashed or sealed?

During hurricane Florence we had significant water get into our house from the roof. There is a location in our roof (see pic) where from inside in the attic I am able to stick a toothbrush through ...
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1answer
62 views

Adding floor joists to an attic

I am trying to add floor joists to an attic and intend for getting decent amount of support for plywood flooring and storage. The existing truss is 13' across and 24'' span between 2x4 ceiling joists....
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2answers
29 views

What type of exhaust ventilation is best for attic?

We want to add exhaust ventilation to our attic (hip-style composition roof). Which type is most effective, passive or power?
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52 views

Can a bathroom fan go out a ridge vent, and how functional is this temporary fix?

I'm in a 1 story craftsman house and have a bathroom vent that had no ductwork, just pouring wet air into the attic. The vent also didn't work well to begin with so we never used it and thankfully ...
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3answers
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If I blow insulation everywhere in my attic except the door trap, will heat escape through it?

I want to blow insulation into my attic. The door into my attic is on the floor and made up of a large board which doesn't have hinges. I have to push the door up and slide it over in order to gain ...
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Finding flies floating in a toilet with a closed lid

We came back to our house after being gone and having it closed up for 10 weeks. There were some live flies and a lot of dead ones everywhere! I had a dead fly fall out of a bathroom cupboard when I ...
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71 views

Rubber electrical tape safe under code for attics?

I'm buying a house. The attic had a wire with frayed outer insulation. I negotiated repair of the cable. The seller has responded that the repairperson wrapped the fray with rubber electrical tape (...
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48 views

Finishing an attic, building codes, layout possibilities

Our attic is entirely unfinished - exposed floor and wall studs. It has windows and is wired for a single light fixture. There is a fixed staircase up to the attic from the second floor where 19.5 is ...
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I have an old house that has 2 wire system black wire white wire wrapped in cloth

It's aluminum wire. I have hot (black) and a white that's supplying 3 other sets of wires. Do I put all 4 black and all 4 white together?? 1 light switch,1 bedroom light , 1 light switch in bathroom ...
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3answers
967 views

I rented an insulation blower. How do I get the insulation into the attic?

Apparently the blower weights 150 lbs and I'm not sure if I can get it up into the attic. Or, perhaps, are the hoses long enough to reach all edges of a 1000 sq ft attic without requiring the blower ...
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1answer
36 views

Is sealant recommended/required over receptacle or other ceiling fixtures located in attic?

I noticed my attic has a few recess lights just sitting in attic insulation and I was planning on adding a new receptacle via my attic ceiling. Do you recommend adding some sealant around the electric ...
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4answers
205 views

Did unfinished attics serve a functional purpose in old houses?

I do a lot of work with detached, wood-framed houses built in the United States between 1850 and 1920. Almost all of them have a walk-up attic that was not finished originally. In some cases the ...
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1answer
42 views

So sistered floor joists need to touch the wall?

Improving an attic for live loads. Contractor sistered our 2x6s but due to the plaster ceiling, they weren't able to sister evenly. I realized this means the new sistered 2x6 beams aren't actually ...
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1answer
34 views

Stalling roof turbines to improve air flow?

My landlord claims that roof turbine ventilators move more air when they do not spin—e.g. by stalling it using a piece of wire tied through the vent and the brace. His reasoning, roughly, is that when ...
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5answers
884 views

Ok to add cellulose over blown fiberglass insulation?

I have an attic with blown in fiberglass insulation, probably original and 27 years old. The attic appears to have had some moisture issues in the past (bathroom vents being vented out of the soffit ...
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1answer
21 views

Should loft insulation cover wall cavities?

When insulating a loft at ceiling level with mineral wool type material, should the insulation cover the exposed wall cavities for external walls?
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2answers
111 views

Replacing attic light switch with Leviton combo

I want to replace and old Leviton attic light switch with a Leviton combo switch/outlet. The junction box has two Romex cables in and one out to the current light. The two in have each a black wire ...
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1answer
96 views

Why are some of my trusses nailed to interior wall top plate?

I am hoping someone can answer why I have multiple trusses nailed into the top plate of a small interior wall in my home. In the first image, I have highlighted in red where the trusses actually touch,...
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3answers
58 views

Does using an existing attic exhaust pipe to also serve air flow from a range hood cause smells/micro particles of oil/soot/etc to get into attic?

Our kitchen renovation contractor decided to change plans on us and vent the range hood out via the same pipe as was pre-existing to passively control the temperature in our attic, instead of vent out ...
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1answer
69 views

What are these thin boards resting on interior wall top plate for?

I am trying to figure out what these two thin (1x4?) boards being used for in my attic. As you can see in the second picture, they are running parallel to the roof trusses, and on top of the interior ...
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2answers
74 views

What is the term for a gambrel roof with an extra angle on each side?

What is the this roof style? Can it even be done with timber! Its not Mansard or Gambrel. Though similar to Gambrel notice the extra pitch. Any pictures, design, sketches of where this has been ...
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2answers
213 views

Should I keep attic gable windows open for ventilation?

Our attic only has a ridge vent (no soffits). It also has two windows on either end. It was recommended that we keep them open to help ventilate the attic. Is this a good recommendation? Should we ...
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25 views

Considerations for improving a cellar floor

I can think of several ways of improving a cellar floor surface. Before I outline them, here's a description of the situation: The house was built in approximately 1900. When I looked at it in May, ...
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2answers
64 views

Is 4“ Ducting Used for a 4” Bath Fan?

I'm interested in installing a bath fan and am currently planning ou the project. The fan specs (https://www.homedepot.com/p/Delta-Breez-GreenBuilder-Series-100-CFM-Wall-or-Ceiling-Bathroom-Exhaust-...
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1answer
36 views

Moving a Drywall & Trim Access Hatch?

I have a question similar to (Cutting ceiling joist for attic ladder install) but plan on making a typical access hatch out of drywall and trim. The question differs in other ways too. This may ...
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1answer
343 views

Restrictions on 90 Degree Elbow for a Bathroom Exhaust Fan?

The manual for a certain (100CFM/4") bathroom exhaust fan has a restriction on using 90-degree elbows close to the unit. Why is this? Is it okay to use 90-degree elbows further down the exhaust path? ...
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2answers
1k views

What Type of Ducting Should Be Used for a Bathroom Exhaust Fan?

I'm planning on installing a Bathroom exhaust fan (Just a note, the port is 4") and am curious as to what kind of duct should be used. I've heard that the duct should be insulated to prevent water ...
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1answer
241 views

What's the best way to insulate an attic with 2x4 joists?

My 1938 home currently has zero insulation (aside from a few fiberglass batts haphazardly tossed about). The ceiling joists are 2x4 (spaced 16 inch OC), rather than the more modern standard of 2x6 or ...
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1answer
46 views

Attic remodel, subfloor, electrical near by

I’m trying to finish an attic, however, can lights from the living room and other electrical peeks above the joist about an inch give or take. How would I finish the floor with those obstructions in ...
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1answer
33 views

Dumb insulation question

I need to install an attic floor in my workshop - currently the rafters are exposed. I plan to use 3/4 plywood, then run faced insulation, then install a ceiling at a later date as time permits. As ...
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1answer
35 views

Insulation and roof venting

I am in the process of finishing my bonus room (attic space above the garage). There are soffit vents and a ridge vent. If I put insulation in between the rafters before I drywall the ceiling, will ...