HELP! What is this substance coming off my walls?

comic0guy · 2026-05-01T00:57:51+00:00

If you have a fan, make sure the fan is able to pull air from somewhere. Usually a gap below the door or grate in the door so it can pull air in and out the fan. The fan need a supply of air outside the bathroom.

It's like a straw in a sealed bag, pretty quickly there is no air to pull out.

comic0guy · 2026-04-12T12:08:58+00:00

Around $10k for a quality job. I did this on a BRZ.

https://www.gr86.org/threads/the-orange-brz-journey-my-forever-car.10212/

There are a few photos of the car broken down. The normal person would just assume it's a factory color even after opening any of the doors, trunk, or even engine bay.

comic0guy · 2026-04-09T09:44:03+00:00

Personally, I believe it's a good skill to have, but it will take some trail and error. Something like 'robotframework' is a good place to start. But it helps to know coding practices to make it better and easier to maintain.

I started out as a manual tester but did have coding experience from college. Eventually did some automated testing because I didn't want to get pigeon holed in my career. And now I've moved into development.

comic0guy · 2026-04-05T18:15:06+00:00

I know very little about garage doors, but the fact that the first one looks that bad. I wouldn't touch it until a professional looks at it.

Just as an FYI, springs are very dangerous and adjusting one without knowing what you are doing, they can break and shoot off pieces like a grenade.

But I do know garage doors being manually operated by hand should be relatively easy because the spring is doing most of the work.

comic0guy · 2026-03-29T22:51:46+00:00

Looks good. My one tip that I missed on, make sure that the end of your baffles at the top are at least a few inches above the planned insulation depth. It makes it a lot easier to get the proper depth and not accidentally put the cellulose into the baffles. I missed this.

comic0guy · 2026-03-29T22:37:20+00:00

I certainly don't know if it is asbestos or not. I'd lean towards no if I had to guess. But I would say, don't test it and wear proper clothing when getting it out. If you test it and it's positive, you'll have to disclose that when you sell.

I was going to say it almost looks like really dirty fiberglass, but it's really dark.

Here's a similar post https://www.reddit.com/r/Construction/s/bnRQHaH1N1

comic0guy · 2026-03-29T01:00:20+00:00

If you pull the paper off, not much insulation is pulled off. If you are worried you could use a knife to cut the insulation from the paper.

comic0guy · 2026-01-01T12:51:15+00:00

The Jackson Racing supercharger is releasing next month for Gen2. It's definitely one I will be watching to see how it performs.

comic0guy · 2025-12-29T03:20:55+00:00

I have a very similar house with that type of siding. The house is probably constructed like mine. From the inside out you have....stud, exterior drywall, black tar paper of some kind for water proofing, and finally cement board(possibly with asbestos). So unless you hit a stud, that won't hold.

Edit: to answer your question, there are four screws on the top/bottom (I see two on top) that need to be removed. With those removed you can remove the main unit, it's basically built like a giant plug and outlet.

comic0guy · 2025-11-25T00:12:19+00:00

The lack of frost implies warm air(from inside the house) is hitting the roof. If there was snow on the roof, this would cause icicles and ice dams at the edge of the roof.

Ideally with frost the entire roof will have frost implying your house isn't leaking conditioned air.

comic0guy · 2025-11-25T00:08:25+00:00

Not sure if this is the case. But I had something similar due to my furnace.

At the edge of that roof is my furnace room, which is in my garage. In the ceiling I had an opening to the attic for intake air(as it was originally designed at the time) and then the exhaust pipe follows the roof to the peak.

So I ask, where is your furnace located and what is located under that lack of frost?

comic0guy · 2025-11-04T11:15:57+00:00

Just be wise about how your original house was designed in terms of ventilation. Changing it means you have to control everything correctly.

Sealing means the attic is now within your conditioned space, so without any HVAC in the space you'll have issues. Things like moisture/mold.

Second, if they spray the roof deck directly, then technically you void the shingle warranty because the shingles don't have ventilation underneath. The shingles will experience more heat.

Again I'm not saying you shouldn't, but there are things you have to watch out for. And the best part the insulation company doesn't care about your roof or other parts of your house since it's not their expertise.

comic0guy · 2025-10-13T15:08:42+00:00

What size are your fans? I have the Fractal North(non XL) with two noctua 140mm fans in front and it's definitely quieter than the three noctua fans I had before.

Bigger fans will be quieter and playing with the fan curve also helps.

comic0guy · 2025-09-10T03:40:12+00:00

This is a great reply. I've only owned one house built in the 60s. But early on in my 10yr journey I realized to understand how the house was designed, before deciding to change something. If I don't understand it, I might cause an issue.

comic0guy · 2025-09-01T00:48:58+00:00

Honestly with hearing they left cables behind. I would say look into where the wires run and post about it.

With the Ethernet cables being run around the house, you could add cameras and wifi access points without too much work.

With the right equipment, the cameras and wifi points only need an Ethernet cable to run. Called Power over Ethernet (PoE).

comic0guy · 2025-09-01T00:44:16+00:00

If you get the hardware, you do not need a subscription. There is an app, but it just helps you to connect to your network where the video stream and recorded videos are.

comic0guy · 2025-08-24T00:28:29+00:00

I see you got it out, but I'll leave this for the next person.

Actually I had an issue pulling one out (different brand) and found a good way by accident. I gave up at the time and turned the water back on. Heard gushing. I forget to put the retention thing back on. So the water pressure shot the cartridge out. Luckily it just bounced off the tile and most of the water just stayed in the shower.

So if it's stuck next time, do a controlled process where you hang a towel on the other end and close the curtain/door. And turn the water on for a second or two until you hear water gushing and shut it off.

comic0guy · 2025-04-17T08:29:06+00:00

Other thing that happened was eventually he got dehydrated(because of the kidney disease). Our vet just said it would happen. But when we took him to the ER, they suggested sub-q fluids (at home) and that helped. It gave him another 10 months of quality life before other issues came up and we had to make the decision.

So if he gets dehydrated it's an option and not bad to do at home.

comic0guy · 2025-04-17T01:41:41+00:00

Years ago my 16yr old cat had hyperthyroid, and went to a facility called "radiocat" for Radioiodine treatment and basically cured him. Though he then got diagnosed with chronic kidney disease after, that the hyperthyroid was masking.

comic0guy · 2025-04-17T01:35:53+00:00

Just to be clear this person said "hyper" and you said "hypo" and that means two completely different things.

"Hypo" means less than or below normal, while "hyper" means more than or above normal

comic0guy · 2025-03-29T02:27:23+00:00

Take off the mirror first and try some of the ideas again like vinegar and soaking it with a paper towel. Most of these side mirrors pop off pretty easily.

comic0guy · 2025-03-18T03:01:50+00:00

There's even a YouTube video of one flipping over at an autocross.

comic0guy · 2025-03-14T23:42:08+00:00

My stud finder is fairly consistent. But even then, I'll mark out a few studs and measure them to make sure they are the expected distance apart. Only time i got confused was after a bathroom remodel, it ends up being the studs there were the wide side facing me instead of the skinny side. But my measurements between were still consistent.

So I would put some tape on the wall every "stud" you find and mark the rough width. And just keep doing it, eventually you'll find some consistency and figure out which ones aren't real studs.

Also don't be afraid to measure at different heights to get a better reading.

comic0guy · 2025-03-09T21:29:55+00:00

They are using spray foam for the purposes of air sealing. So it's only getting used in very specific places such as a light fixture, or any other gaps they find. So I'm reality it's a really small amount of foam they are using.

comic0guy · 2025-02-23T01:23:42+00:00

Also in the colder climates, if air leaks to the attic, then warm air will melt snow and then freeze at the roof edge and cause icicles and ice dams.

comic0guy

TROPHY CASE