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Questions tagged [attic]

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

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42 views

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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54 views

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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23 views

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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62 views

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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78 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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84 views

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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642 views

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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61 views

Whole house fan motor size

I am told that my whole house fan motor is no longer repairable. It is a 1/2 HP Robbins & Myers dating from 1966 and weighs about 51#. The Hunter fan documentation says the motor is the right size ...
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37 views

Need help with poor attic ventilation

My son's attic is running about ~30 deg hotter than the outside temp in the peak of day and makes the AC work overtime to cool the house. The previous owner re-did the attic/roof, and there are only ...
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64 views

Is it beneficial to have a gable attic fan even though it's not attached to an external vent?

The gable vents/shutters are in an area of the attic that's not easily accessible for me. Ideally that's where the attic fan would go. Is there a benefit for me to still run a powered attic fan as ...
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59 views

Sequence of Insulation (attic) and mud/taping

My question is about what is typical / expected on new construction. I have done a lot of remodels (over a dozen) in my life but this is my first 100%, new construction. Contractor is insisting we ...
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148 views

What's the most effective way to further reduce attic temperatures in hot weather?

I just bought a house 6 months ago. Early on I discovered the not only was the attic poorly insulated, but it was not properly ventilated. The 1000 sq ft attic had 1 blocked soffit vents in each ...
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97 views

What is this dirt on the top of my high ceiling wall, how do we remove?

We just noticed there is some dirt on the wall by my foyer close to the ceiling. On the other side of this wall is a small attic space. The wall to the right, where the bar is, has a bedroom on the ...
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1answer
76 views

Okay to cover attic joists with plywood?

I have long scraps of plywood (1/2 in and 3/4” thick) left over from a recent renovation and since they are my retirement plan, due to price paid,I don’t want to toss them and don't really have a good ...
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29 views

1920's Home Attic Insulation Options for warmer summer months (SF Bay Area)

I'm currently trying to install a whole house fan in our 1000sf 1920s home in Oakland, CA. The weather is temperate and Oakland gets 3-4 weeks a year of heat that's 80deg-100deg. With our old house, ...
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93 views

Adding "floor" to unfinished attic with blown-in insulation

I'm in the process of converting our attic into a useable storage space. We have no basement and a small garage so it'll have to be our main storage area, so I'm hoping to make it user-friendly and as ...
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153 views

A spark while installing a smoke alarm

Short story: the black wire sparked when installing a hardwired smoke detector as I had left the power on. After properly turning off the power, I completed the installation and now everything works ...
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27 views

Electrical: Replace light switch with smart switch, odd wiring question

I have a very simple switch attached to my attic fan. Between the switch and the fan is a temperature sensor that will only trigger the fan when the attic is hot enough. I’d like to replace the ...
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62 views

Characteristics of this attic and what can I do to make it easier to traverse?

Are these joists or trusses? My confusion is that I am reading spacing between joists of between 18inches and 24 inches. However when I measure the spacing I am getting somewhere in the region of 12 ...
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22 views

Attic Fan for Carrier 58STX110--14122

I have a Carrier furnace in my attic (Model 58STX110--14122). Does this unit include an attic fan? There is a fan that used to turn on during the day when it's hot and turns off when temperatures ...
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96 views

How can I insulate a duct running through an unconditioned kneewall space?

Unfortunately, I have to run an 8 inch HVAC duct through an unconditioned kneewall attic in southern Ontario (climate zone 6). I am trying to decide between two options: Encapsulate duct with spray ...
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70 views

What kind of insulation is this?

Trying to identify this type of insulation and maybe some alternatives I can use to replace it with. It looks like foam to me. House was built in 1950s or so:
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90 views

Install New Attic Access Ladder Perpendicular to Joists

I am trying to install a new access ladder to our attic, cutting a new hole etc. There's only one room in our 1038sq house (built in 1952) that will work, and after taking a closer look there is a ...
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89 views

New construction, do the supports look correct in the attic?

I have a house under construction and this is how they are supporting the roof. Does this look correct? Thank you for your input! ]1
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30 views

Mold on cedar siding

Bungalow style home in Milwaukee WI with finished attic. Can access the Southern portion of the attic,via a crawl space,but not the opposite side. We had ice dams this winter and there is mold on the ...
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901 views

Mold or rust stain on roof truss

Paid a visit to my attic earlier today to see if there was any winter damage. Looking all good except for a small piece of truss that has a black stain on it (see picture). I would have said mold ...
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65 views

Adding a second hatch to the attic

I have the following problem: my attic is mostly a crawlspace for the air-conditioning unit. And that crawlspace is full of obstacles, which makes my filter very hard to reach. My solution is to make ...
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69 views

Remove fireplace leave metal chimney on roof

I removed a wood-burning stove and cut through the double-lined metal chimney flue in the attic. In the short term I jammed some insulation in the metal liner and left the rest of the chimney with the ...
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57 views

Trying to divide an open loft space with child safety in mind

I have a open loft apartment. The ceilings are 25 feet high. I am trying to divide space for my five year old daughter so that it gives her some privacy. One suggestion would be to use bookshelves. ...
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38 views

How can I make a finished attic cooler and all bedrooms comfortable when central A/C is shared between 2nd and 3rd floors?

I have a 3-floor house with central air. First floor has its own A/C. Second floor and finished attic are a single zone. There is an open staircase between the first and second floors, and a ...
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79 views

How to add insulation to ducts in hot uninsulated attic?

I have central air with ducts running through the hot, uninsulated attic (there is blown-in insulation between the joists to insulate the rooms below). Fortunately it's only about 25 feet of ductwork, ...
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3answers
206 views

Using Patch Panel for CAT6a wiring from attic to closet

We have run CAT6a cable throughout our house and will be placing the network switches in a closet. The wiring will enter the closet from a wall backing to the attic space (we aren't coming down from ...
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26 views

How can I get the insulation batts back up above the finished attic ceiling?

I have a finished attic. The finished room has drywall screwed directly to the roof rafters. There were insulation batts installed between rafters initially, but it's a steep slope and most of them ...
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48 views

Desert Sand Blowing Into My Attic

We live in the high desert of Southern California and our home is positioned facing South and the prevailing winds blow from the West. Our gable vent faces West and over time the sand has blown into ...
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73 views

Run cables through ceiling into attic

I would like to install a wired security camera box in a closet and run the cables up into the attic to the individual cameras. How should the cables penetrate the drywall ceiling? I would like the ...
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2answers
82 views

Add attic access in garage?

I'm going to need access to the attic area of my house to run some cables. The current access is in a closet on the opposite end of the house; getting up there is a bit of a pain, and then I would ...
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29 views

Installing Ladder in Historic Brick Garage

Just bought an old home with a detached 1905 brick garage w/ loft. Currently, the only way to access the space is by pulling out a ladder and climbing through a 16" opening at the end. I'd like ...
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67 views

Attic fan installation

I am wanting to install an attic fan over the gable vent and had a couple questions. There is a 2x4 running through the center of the vent. Can I cut this in the middle so it doesn’t block the fan? I ...
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96 views

Subfloor or partition walls first in a cottage attic?

Its time for me to think about the internals of an attic in a traditional British one and a half storey cottage. Picture of 1st floor inside cottage Note this is just spare bits of timber sarking as ...
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57 views

Opportunity to relocated HVAC system from attic to basement

Our >10-year old HVAC system (heat pump and 3-ton air handler) need to be replaced. The heat pump is need of new parts, but we were advised given the age of the entire system that it would be more ...
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1answer
81 views

Insulation in the attic : choice between fire retardant and allergenic

This is for a house in Portugal, where most houses have no insulation. I want to insulate the house (it is quite cold in the winter). The plan is to lay down some isolation material on the floor of ...
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336 views

Is this mold or just black wood?

Are the black spots on my OSB mold? If so, should I be concerned? We had a problem with vent but has been corrected. Thanks. Image is of worse area in attic.
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97 views

securing attic stairs to car port roof..or...?

is there a way to have attic stairs secured to edge of solid roof when access hole is in a tin roofed car port? No room in home so carport is only option..Of course, car port roof not strong enough to ...
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145 views

Why did HVAC company add a heat outlet register venting into my attic?

I recently had a brand new HVAC system installed in my attic. The furnace is natural gas. The furnace kept shutting down after 7 to 12 minutes, due to "too much air" blowing on heat sensor ...
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20 views

Does facing fiberglass batts matter when installing from attic?

I would like to supplement some existing old woolly pellet insulation in my attic using 6" thick fiberglass batts. Since the size I need seems to only come faced, should I: Face it up (facing ...
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65 views

Replace or supplement very old attic insulation

My attic has very old insulation, which I have been told provides very little R-value. I suspect the insulation was from when the house was built in 1909. Question: Should I remove this old insulation ...
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81 views

Best way to repair cracked attic post?

There's a post (layman's term) in the middle of my attic that is cracking and bent. It wasn't like that the last time I checked maybe 2 months ago. This is in a 30 year-old house. Now that I think of ...
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81 views

Cable running across top of trusses

I've got some cables in my attic that run across the top of my trusses. This white one goes to my dryer and is stapled every few feet. (The green cable is currently not attached to anything at either ...
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1answer
85 views

Should I insulate under my cold water tank?

The house is 25 years old, located in South Wales, UK. Previous owners made a total mess of the attic space, taking up rolled insulation all over the place to cut holes for suspect plumbing but that's ...
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72 views

Ceiling Register Box Insulation and Airtightness - Is this correct?

I'm in the process of making all the ceiling punctures into my attic air tight and better insulated with caulk and spray foam to reduce moisture and my energy costs. However, the HVAC ceiling register ...

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