Questions tagged [attic]

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

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Found a 2"x4" hole in return duct

So this return duct in my attic has a perfectly cut 2"x4" hole in it. Why would someone have left that hole there? I live in southern Florida and the attic is usually 110-160F in the day ...
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Do old vents need to be removed if ridge vent is installed?

With a new ridge vent installed, I am wondering if these old vents need to be removed? They're plastic covers over a square hole cut in to the attic plywood. Just curious if it will interfere with ...
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Can I safely remove these 3 pieces of wood in Attic?

Can I remove these pieces of wood in my attic? I think I can take them out based on the following reasons, but thought I'd get another opinion. Pieces 2 & 3 are separated in two pieces. Usually, ...
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Feasibility of insulation under roof decking and whole-attic insulation with closed cell

So this question is actually two parts. We have a 5 in 12 hip roof (one gable actually) with old corrugated tin on lathe. Everything lies on 2x4 truss rafters. We will be removing everything, ...
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2 votes
1 answer
200 views

Is this garage attic storage platform safe?

We're converting some of the attic space in our garage for storage and I'm hoping someone here can help with some concerns I have about the work that was done. I'm handy but not in construction and ...
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Sealing air gaps around edges of attic gable fan

I just installed a new gable fan to exhaust hot air from my attic. Due to unevenness in my studs and gravity pulling one side of the fan lower than the other, there are small gaps (ranging between 1/8&...
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What is this pipe in the attic for?

I see this silver pipe in the attic that doesn't seem to lead anywhere. There is a hole in the wood, maybe it used to go outside? Right now the hole is covered, probably with the roofing. Just ...
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Need way to Vent Heat out of Vaulted Ceiling in top floor Condo in Colorado

I live in a top floor condo with a vaulted ceiling. The high vertical wall of the vaulted ceiling backs onto an attic area accessed from outside the condo. There are NO vents and 2 poorly working ...
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Do I need to install soffit vents if I have gable vents and whirly birds?

We have approximately 1800 square feet of attic space. Ranch style 1-story home. We have triangle gable vents at each end and 3 whirly bird vents spaced across top of roof. Attic stays pretty hot ...
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1 answer
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Have I gotten too creative with my attic insulation vs airflow design?

I did a lot of research on air flow and insulation at the beginning of this project, but I started to get into a flow and got a bit creative with foam-board sealed ridge air pocket. My basic design is ...
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White Spots on Wood in Attic

Went up to the attic today and saw these white spots on the wood for the ceiling. Just wondering what they are and if I should be concerned? And also how to get rid of it and prevent it from coming ...
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Attic plasterboard alternative

I want to avoid using plasterboards under the insulation of my roof and use an alternative instead. Can I use plywood or some cork boards/sheets or anything else that is light or not as heavy as the ...
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8 votes
4 answers
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Repairing a partially cut roof strut

It looks like some previous owner of my house (built in the 40s) cut almost the whole way through a roof strut (I think it's called a strut) when installing an attic ladder in the garage. I am ...
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4 votes
1 answer
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How to repair this split ceiling joist?

While installing some new recessed lighting in my attic today, I noticed this split in one of the ceiling joists. The split is about 4 ft 6 in long starting from the end of the joist. The joist is a ...
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Small folding loft/attic ladder

I'm wanting to install a loft ladder. I would prefer one of those nice folding wooden ladders, however upon researching the various types, it seems that these are quite a bit longer than my current ...
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What's the purpose of diagonal braces on the attic's wall

I am trying to make a closet in one of the rooms on the 2nd floor of my house & when I broke the wall, I saw diagonal braces, which made me kind of wonder what the purpose of those would be & ...
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What is the best way to insulate attic walls in a balloon frame house? [closed]

We are insulating the attic in our 1900 house with a balloon frame. The attic had an old wooden floor, so we plan to go over that with either mineral wool or XPS. The floor boards run to the wall ...
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Building a 30x30 room in a 30x50 house?

Edit: I really appreciate all the replies, much food for thought. Below I will try to elaborate on a few things. I do have a design that I will post here in a minute. This house would be in a Northern ...
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1 vote
1 answer
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Best way to provide attic access to difficult to reach areas

I would like to make it easier to access the difficult to reach parts of my attic. This is for maintenance and repairs (e.g., I would like to install some new recessed lighting and run some new wiring ...
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2 answers
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Attic Wiring Using 12-3 and 12-2 pulling from ceiling outlet

I am adding attic lights, and will be pulling power from the garage's constant power ceiling outlet. The switch will be close the the attic ladder opening. There will be 3 lights daisy chained in the ...
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4 votes
3 answers
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Kneewall Scuttle vault door won’t close

I recently moved into my first house and we’re in a bit of a pickle. The bedroom that our baby sleeps in has a metal door on the wall (too high to access w/o a ladder) and try as we might, we can’t ...
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Is this a rafter tie or something else?

House was built in 1978. I'm acquainting myself with some of the basics of the attic structure. I don't know what this is called or the purpose it serves. Specifically I am referring to the 2x6 turned ...
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Proper way to reframe joists to install attic ladder?

I'm looking to replace the attic ladder with 25.5 x 55 opening ( Century Elite AL2511R5 ). After removing my old ladder, the opening looks like the following : I'm looking to change joists as follows ...
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4 answers
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How can I install insulation batts between joists with variable spacing?

I am trying to put insulation above a garage but the problem is the space in between the cross beams are different. They varying between 16", 17", 18". What would be the best way to ...
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How would you use this space? [closed]

I recently purchased a condo and there is a loft area above a room that you can see in the picture. please don't tell me to use it as a storage! aha i wonder if anyone has a creative idea of how to ...
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Is foamboard insulation on top of ceiling joists a bad idea? Is there a better solution if I can't have insulation directly on top of ceiling?

I'm installing Armstrong Woodhaven ceiling panels in the kitchen of a ranch home, so the panels will be attached to the ceiling joists, with the backside facing up into the attic (the ceiling is ...
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10 votes
7 answers
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how to reduce heat lost to attic through attic door

I have an attic door which is a hollow core bedroom door and my thermal camera measures it at a good 7 degrees F cooler than the wall around it, which means that I am probably losing heat. The door is ...
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10 votes
2 answers
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Noises from attic - Should I be concerned?

In one of my bathrooms on the top floor, I can loudly hear noises that sound somewhat like a bird. The sounds have been going for about a month now. What's going on? Should I be concerned? The video: ...
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Attic HVAC ducts are in the way. What should I do?

Just moved in to a new house back in September and I want to add some pendant lights in the kitchen. Went up into the attic and looked around... The main HVAC duct bisects the attic and I will have to ...
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-1 votes
1 answer
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Fastening Double Ledgerboards for Loft

I’ve got an unfortunate issue, my garage length is 1.5 inches past the free span length for joists. First, is it acceptable to fasten Double Ledger boards to make the distance work? Before designing ...
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Recommendations for attic decking

My wife has been wanting me to add attic decking for a while. I went up again today to scope out what work is needed. My attic is full of supports, a/c ductwork and these metal pipes. What are these ...
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2 answers
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insulate walk up attic stairs (not pull down)

I have a full set of stairs that walk up into an unfinished attic space. The full sized access door to these stairs is in a hallway as if its a closet. Unfortunately, the max distance I have under ...
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4 votes
2 answers
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How to build a catwalk in my attic?

I'm about to have the insulation removed and reinstalled since the old insulation is doing a very poor job. I will have a couple weeks when the insulation will be removed for me to do some improvement ...
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1 answer
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What Rigid Foam Insulation Thickness is Comparable to 300mm Rock Wool Insulation?

I'm in the UK and in a house built pre-1900. In there I have rock wool on top of old rock wool and vermin are finding this very inviting (found out after I bought the house). Because of the smell and ...
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5 votes
3 answers
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Options for NM Electric Wire Laying on Attic Floor?

I’ve got an unfinished attic with trusses and plywood floor. There’s electric wires running across the plywood floor without much slack to raise them up. I don’t really want to pull up the floor, but ...
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1 answer
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Exhaust fan from ceiling is dropping water, but the roof might show a bigger problem

I'm living in the Northeast coasts, and I saw my exhaust fan from the ceiling is dropping water this morning. So this afternoon, I access my attic to see the inner roof and see a potentially bigger ...
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Drilling into timber frame wall from loft

I live in a 2021 new build house in the UK. Detached, timber frame, stud walls. I have a sloping roof on two sides, on the other two sides they are just vertical walls (in the shape of a triangle at ...
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2 answers
264 views

2x4 floor joists in attic: make stronger/level?

My house is 100 years old in Ontario, Canada. My attic is unfinished, and the joists are true to size (2” x 4”) rough sawn 2x4s (two 10’ pieces make up the 20’ span), 16” OC, cathedral roof. Supported ...
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2 votes
1 answer
65 views

Will rigid air conduit improve flow, over flexible ones

My top room (3rd floor) has poor airflow, from a central air (cool and heat). Looking in the attic, I found flexible ducts that go over many curves. I feel like the duct are getting compressed/bent at ...
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Fiberglass fills attic rafters, planning another 3" of fiberglass perpendicular to rafters, but how should I navigate my attic after installation?

I have fiberglass filling my rafters, very nearly to the top. To meet my insulation target, I plan to install another 3" layer of fiberglass perpendicular to the existing fiberglass... but this ...
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1 answer
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vapor barrier insulated attic (floor over garage

I recently hired pros to spray foam my attic, essentially sealing the soffits, roofdeck, ridge vent, and the removed all cellulose insulation to allow air exchange and balance the conditioned space ...
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5 votes
1 answer
1k views

Running NM cable in attic across rafters

I'm adding a couple of outlets mounted to the underside of the rafters in our attic but I'm not totally sure how to actually run the wire for the circuit through the attic. We've got lots of permitted/...
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attic remodel - insulation, ventilation, and general questions

it's time to really get to work on my attic remodell. House is gable roof home with continuous soffit vents (of a kind - my home doesn't have eaves really, there is only a tiny amount of overhang, so ...
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Increasing air intake in the attic to prevent ice buildup on the roof during winter

We bought a townhouse in 2018 in a Canadian city where we have frequent snowfall during winter. Here are pictures of the back and front of the house. In the last two years, we have had ice dams on ...
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2 answers
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Running cables into my loft space when my bedroom ceiling has been lowered

For reasons I don't remember, my brother lowered the ceiling in my bedroom by approx 20cm (I think, it might be more), all my walls and new lower ceiling was plastered over. This has been fine for ...
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1 vote
0 answers
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Thermal expansion nee contraction: installing subfloor in unfinished attic

I am working in an unfinished attic where the temperature exceeds 100F in Summer (now), and that will be stabilized to more normal temperatures once finished. I need to install the subfloor to be able ...
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1 vote
2 answers
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How do I stop smoke from being drawn into unit via open air return in attic?

I'm kind of at my wits end, trying to resolve some serious issues we have at our apartment. Not sure if this is the right place to ask this question; if not, please point me in the right direction. ...
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1 vote
1 answer
145 views

What is this opening in the ceiling above my furnace, and can I plug it?

I recently installed a whole house fan in my attic. For those unfamiliar with whole house fans, they work by creating negative pressure in the living area and positive pressure in the attic. This ...
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0 votes
2 answers
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Attic HVAC BTU considerations

I live in central New York and will be installing a furnace and coil in my unfinished attic with an A/C unit outside to condition 800 sq/ft of upstairs living space. The attic a standard overhang (no ...
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5 votes
1 answer
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What is this type of insulation?

I just bought a house and I find this stuff in the loft. I'm worried it is asbestos... Is it?
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