Questions tagged [condensation]

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9
votes
3answers
1k views

Central Air condensate is pumped into a hole in the basement floor?

I’ve tried to do some research on this topic but am a little confused and would like to know if I’ve got a problem here that I need to remedy. I think I want to install a self-draining dehumidifier in ...
0
votes
1answer
25 views

B-vent condensation in large attic space

I have condensation in/on the B'vent flue pipe from my heater in the attic andit is dripping. The original B-vent flue pipe was corroded on the interior so we had the flue pipe replaced from the ...
2
votes
3answers
128 views

Why does water accumulate on the hardwood floors in my 1930 home?

My home was build 1930 and nothing has been updated. In my downstairs bedroom under anything that sits on the floor from my bed, night stands, dog crate, and other things the floors will puddle with ...
0
votes
1answer
71 views

How to fix capillary action on anti-condensation coating on box profile steel roofing sheets?

We have some carports here that were installed by a previous owner a few years ago. They have side walls, but are open front and back, and have a steel box profile roof. Big green sheets like this: ...
0
votes
1answer
58 views

Does mold in a loggia means that the loggia must be replaced?

My apartment has a loggia which used to be a balcony (it is now an extension of the living room without any separation between them - the door that was there was removed). This was done by the ...
2
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0answers
27 views

Upper Floor Window Condensation Issues - HRV?

We live in a 2 level home with basement in central washington. The winters average 20-36 degrees Fahrenheit with humidity levels of 70-99%. Summers are fairly warm to hot with lower RH. Our issue is ...
1
vote
1answer
95 views

Condensation forming on garage roof despite insulation

I have a condensation problem on the inside of my garage roof. I noticed it in November, lots of condensation forming on the roof but only at the back half of the garage which is slowly being ...
1
vote
2answers
61 views

Why does condensation appear on surface of window, but not all of them?

When I woke up this morning (a beautiful winter morning), I opened my curtains and noticed that the middle pane was covered in surface condensation, but the two adjacent panes were almost completely ...
1
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0answers
18 views

Bathroom condensation

My bathroom is mouldy and retains condensation on walls, windows etc. The room is approx 8fx7ft x 8ft high. I’ve installed a new inline Manrose fan with timer to replace cheap old online fan, the ...
0
votes
1answer
87 views

Will condensation form and be an issue on an aluminium duct venting water heater exhaust?

I have built the unfinished chimney shown in the image below to get the exhaust for my neighbor's water heaters (which I believe are sealed combustion gas appliances, such as the Remeha Avanta water ...
0
votes
2answers
34 views

Window casing upgrade to plastic/pvc/vinyl/aluminum

I Just had two rooms added to the house, and I totally forgot to mention in the contract that I wanted the window casing to be plastic. (window frame? The internal part that encases the window ...
0
votes
1answer
823 views

How long a horizontal run will a condensate pump support?

I have the model 21786 condensate pump described below. The specs say it can push the water up 16' using a 3/8" PVC pipe. Does this mean it will do it in any possible direction (my case 8' to the ...
5
votes
5answers
104 views

Condensation on just 1 duct in unfinished basement

We live in the Northeast (PA) and have a new construction home that we have lived in for a year. The home is small (1300 sq ft, open concept first floor) with an unfinished basement. The ceiling of ...
2
votes
1answer
191 views

How does the insulation value of multiple layers of insulation compare to a single layer of the same total thickness?

If I insulate a surface with two sheets of rigid foam insulation with thickness x, or with one sheet of otherwise identical rigid foam insulation with thickness 2x, how should I think about the ...
0
votes
0answers
38 views

Sheetrock on Walls Is Falling Apart and Cannot Find the Cause

In the corner of my bedroom i have discovered that the sheetrock on each wall was so damp that it is falling apart. One wall backs up to my shower the other wall backs up to the laundry room further ...
0
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0answers
46 views

vinegar for Trane furnace

I installed a new gas heater with a condensing unit in 2019 winter. Here is the detail. My question is... Every year, I'd better pour some vinegar after opening the cap of the picture? If yes, how ...
-2
votes
1answer
185 views

How to determine if damp smell, marks, cracks, mould, on internal walls is from; rising damp : condensation or other

I live on the ground floor of an art deco complex, with 2 apartments above me. We have lived here for almost 13 years and have never had a problem with damp / mould issues....other than our bathroom ...
1
vote
1answer
169 views

Why is there condensation on a pipe near my furnace?

My AC says it is trying to cool to 73 but is reading 75. I changed the filter, which didn't help. I looked in the closet, and apparently the installers were supposed to install an "auxiliary ...
1
vote
1answer
71 views

Type of insulation for flexible aluminum duct?

I’m replacing an undersized bathroom exhaust fan with a larger one that has a higher CFM. When switching the fan out, I want to add insulation to the flexible aluminum duct that goes from the fan to ...
-1
votes
1answer
115 views

How to ventilate a chimney taken down to attic (roof line) level?

I had a leak in my chimney flashing, so the roofer recommended taking the chimney down to attic level. He repaired the roof where the chimney was (board, felt and roof tiles). All was good, but a few ...
1
vote
1answer
22 views

Who can I hire to investigate a possible airflow blockage in my attic?

Had a new roof replaced last year, tear off/replace. Also had a new slider door replacing old one installed last year. I am noticing what appears to be staining where the ceiling meets the wall. ...
3
votes
1answer
583 views

Is this an acceptable way to fix garage roof condensation?

I'm in the UK. My garage has a corrugated metal roof with no insulation. In the winter, when it rains the underside of the roof drips. Not massively, but just enough to be annoying. The roof ...
0
votes
1answer
467 views

Is a peltier-based dehumidifier a good choice to prevent condensation?

I have a non-heated, enclosed space (crawl space that does have a vapor barrier). During a limited number of days in the spring or fall, I get condensation on things that stay cold while the air ...
0
votes
0answers
134 views

Condensation and air leak from skylight

I Recently started seeing condensation on my skylight. Skylight is installed in the bathroom. Sometime on windy day I feel air coming through skylight. If I raise my hand up towards it I can feel ...
1
vote
2answers
126 views

I have an indoor swimming pool - can I have a large mirror, or will it be steamed all the time?

I have a dehumidifier in my indoor swimming pool room, I would like a large dance mirror on the wall - would it be constantly covered in condensation. My room humidity is controlled to 50%. Just don’...
1
vote
1answer
477 views

Water leaking around window when it is NOT raining!

I need help! In February, we noticed that there were some brown water drips on the window frame above our kitchen sink, not in a crevice or corner, just hanging from the middle of the wood frame! ...
0
votes
3answers
92 views

Solution to put down a window sill crack to prevent mold

I have a couple windows where there is a space below the window that goes into the wall (see bottom of picture). There was mold and condensation all around the area, so I'm guessing there's mold down ...
2
votes
2answers
226 views

Finishing drywall that abuts against metal frame prone to condensation

I have a interior soffit (that encloses a structural beam running along the exterior of the building) directly above an exterior sliding door. The drywall covering this soffit abuts right up against ...
1
vote
1answer
828 views

High humidity in bedroom and condensation

I have a Bungalow build 1950s cavity walls not sure if they have insulation in the cavity. Suffering from really high humidity in main bedroom 74% overnight dropping to 59/60 in day. Window and ...
7
votes
1answer
2k views

Why is there a 1/2-inch hole drilled in my heater exhaust?

I have a Carrier high efficiency furnace which uses 2-inch PVC pipes to pull in combustion air from outside and exhaust the combustion gasses back outside (through a concentric vent, but that's not ...
1
vote
2answers
831 views

Water is dripping from the furnace exaust flue

I replaced my hvac and noticed that my flue is dripping water. Wondering what might cause it? I assume some sort of condensation, but I don’t know what should I do to fix it.
1
vote
1answer
189 views

Condensation on Skylight

So this is my first winter in my new house and I noticed the skylight on the second floor has a lot of condensation on the inside now that the weather is getting colder. It's an old single pane and ...
1
vote
3answers
110 views

What could be the sources of humidity that build up in a house in an arid environment? Outside RH: 10%; Inside RH: 40% +

We open our window at night at the temps get down to 70F @20% RH. The temp in the house drops to 75F and the RH is 33%. We close our windows when we go to work. When mid day comes, outside, the ...
0
votes
1answer
652 views

Preventing condensation on the inside of an exposed structural exterior brick wall

I have a 1920's town home with exterior brick walls. In the upstairs bedroom on the northwest corner, I occasionally see condensation forming and running down the brick wall in the winter. This is ...
2
votes
1answer
1k views

Should I open my AC register in the basement to help with condensation?

Really hot in NJ this week, excessive heat warnings, and the like. Daytime Temp: 96 degrees Daytime Humidity: 55% Feels Like: 105 degrees Nighttime Temp: 79 degrees Nighttime Humidity: 87% ...
1
vote
3answers
85 views

Improve existing roof insulation from the inside

We have a pitched roof (1971 house, The Netherlands) which consists of (outside to inside): Tiles 2cm PUR insulation 2cm wood We asked a few companies for quotations to improve the insulation (...
2
votes
0answers
25 views

Trane HVAC in horizontal position - why does evaporator throw condensation?

I appreciate assistance from anyone who has had or understands the problem. I have a Trane HVAC system in a horizontal "left" flow configuration in the attic. Ambient temperature is about 95 ...
0
votes
1answer
130 views

Could my furnace be leaking due to condensation neutralizer?

I posted this and the main suspect was condensation pump but after troubleshooting, the pump is working fine (tested standalone). Now I wonder if the leak could be due to the condensation neutralizer; ...
0
votes
1answer
53 views

Toilet tank dripping water condensation [duplicate]

I have a toilet which has water condensing on the outside of the tank and then dripping down onto the floor. No, the tank is definitely not leaking. This is weather related, as this always happens ...
6
votes
4answers
770 views

How can window condensation in a leased condo be dried, if I'll be away for 3 weeks, without towels?

I will be leaving my leased condominium in Toronto, Canada for three weeks on 1 Feb. 2019. In cold weather, my window and balcony door sills have pools of water on the floor that sometimes pour into ...
2
votes
1answer
144 views

How can I deal with a heat pump condenser producing lots of water?

Heat pumps was replaced in 2017. North Florida has had moderately cool weather (50-60 degrees F) recently. I noticed water underneath one of the units. Is the water pooling normal? If yes, why? If ...
0
votes
1answer
32 views

Can improved window insulation prevent condensation on the interior of a window

We have a whole house humidifier which is great but one of our windows condenses much more than the others and doesn't dry out because it doesn't get much sun during the day like our other windows. I ...
0
votes
2answers
86 views

How can I identify the cause of ceiling water damage?

Just wondering if there is an easy way to tell if water damage on the celing is a result of a roof leak, or condensation build up in the house. Here are some pictures: https://photos.app.goo.gl/...
0
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2answers
522 views

What is causing these water “trails” on inside of exterior wall?

The bedroom at the back of my house (North facing) has what I would describe as persistent water "trails" on the inside surface. They are faint, but noticeable. The "trails" run from the ceiling, and ...
2
votes
2answers
2k views

How to deal with bedroom condensation/moisture on winter mornings?

In late September when the weather started cooling down here in Surrey BC Canada, we started to see morning condensation on our windows (newly installed last year): My wife and I and our son sleep in ...
1
vote
2answers
754 views

Is there some type of coating I can use to prevent condensate on my HVAC ducts?

I'm getting a lot of condensate on my HVAC ducts that run though my first floor (and HVAC blower) especially in July / August when humidity levels are outrageous (in NJ). The 1st floor space space is ...
1
vote
2answers
591 views

Problem with condensation on HVAC ducts inside house

I'm having a pretty serious problem. There is an old sheet metal HVAC duct in my home that is getting condensation that is dripping onto the ceiling of a pantry. This duct is completely internal to ...
0
votes
0answers
132 views

interior french drain installed causing wall to be wet due to condensation?

I had an interior french drain installed and I have water condensing on the durawall panel that is installed against the wall above the trench. The durawall panel runs about 2 feet above floor level. ...
0
votes
1answer
77 views

Carport condensation issue

Recently, my carport started to collect condensation when it's warm after a cold night. This never happened before. Carport is attached to the sun-room. The change that was made to it is enclosing ...
1
vote
1answer
60 views

what is a reasonable amount of condensate water produced by my pump?

I have a Ruud hi-efficiency furnace and also a Ruud tankless hot water system, both with condensate lines running down to the pump. My problem is... the pump runs (intermittently) ALL day long..lol.. ...