How to Create Walls Using Plain Plaster on Metal Lath
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- Опубліковано 22 сер 2024
- NOTE: Here my husband is plastering an interior wall which does not have (or need) insulation. For exterior walls, insulation should be installed behind the metal lath first. Here, the gray you see behind the bare metal lath is the backside of the completed plaster on the other side of that wall.
Hi there, great video! What type of plaster did you use?
Thanks! We used this Structolite: www.usg.com/content/usgcom/en/products-solutions/products/surfacing/plasters/usg-structo-lite-basecoat-plaster.html
I plan on using your method to finish several walls in my basement. I'll let you know how it turns out! Thanks again for posting this!
Excellent! It really is a nice product, and I love how it looks when finished.
@@ChristaUpton why do you use metal lath instead of sheetrock? Do you do a 3rd coat of veneer plaster?
@@brettknoss486 Sheetrock has synthetic chemicals which offgas and metal lath doesn't, but even more importantly, sheetrock--with the use of paper backer and facer--provides "food" for mold to grow should it ever get wet. With the use of metal lath (mold cannot grow on metal itself unless there is also dirt for food) and plaster which dries quickly and inhibits mold growth, there is highly reduced risk of major mold colonies growing inside the walls. In fact, rather than blocking hidden leaks and absorbing water and growing mold like the back of sheetrock does, plaster tends to let the water right through, which alerts the homeowner to find the leak and stop the water damage.
Many people do a 3rd coat of veneer plaster--apparently some building codes require it. But we did not. We did not see a need, and 4.5 years later, our walls still look fantastic!!! Except where there has been actual smudges of dirt, metal (wheelchair wheels scraping the wall), etc. I would like to either sand all these down or plaster over them but life has kept us from doing so. In any case, this is about normal wear/dirt in life, :) not number of coats. It probably helps that despite temps down to -30, our slab has held well, being a shallow, insulated slab. This minimizes shifting and cracks, I believe. I have not seen one crack in our walls.
Thank you so much for making this video and posting it for us! I desperately wanted a solid introduction to metal lath by a real person that knows what they're doing! Thanks!
You are so welcome. I am glad if it can help. I love my walls, so pretty. :)
Correction:
CBC-2016 Section 2511.1 requires (3) coats when applied over metal lath or wire.
Thanks for the tutorial.
I even liked your little buddy trying to lend a helping paw.
Oh, wow, good to know!! Thank you!!! Sorry for the silly question--does this apply only to California?
Also why would they require 3 coats? I would love to know so we can evaluate even if the code doesn't apply here.
Glad you liked it and our furry buddy, too. :) Kitty's name is Sherlock. :)
A ground coat, a brown coat and a finish coat....3 coats..
Thank you so much for this video, I moved into a house in the city made out of brick and block for exactly the same reason--mold issue. I miss my home in the country so badly but I got too sick. I am replastering walls in my home and have been debating whether to use the wood lath or go with metal. I'm now convinced to go with metal. I think one loses a lot of plaster behind wood lath. One reason It has been so hard to re-wire this house, Still a beginner, It might be easier as well. I was told it would adhere better. i do plan on doing 3 coats. The first 2 structolite and then lime/gauging plaster or vaneer, not sure which to use yet. it will be a big job. Thanks also for the advice to wait until the humidy is not so high. very helpful
I'm so glad you found some things helpful!!!! Good luck and hugs!!!!!
@@ChristaUpton Thank you, generous Christa, If you happen to see this, would you mind telling me what you used for insulation. I am doing a wall to the outside with very little room between the outside wall and inside. I think you do a spray foam of some type. Thank You
@@karenflowers9711 We used sheep's wool insulation, from Oregon Shepherd!!! I LOVE it, but I don't know if it would fit in a small space. They were good about questions though, and I'm sure they could tell you the inches needed for R value, etc.
Update on cleaning these plaster walls, they ARE cleanable from SOME things after all: beet juice and ketchup stains on wall near kitchen sink were lightly to mediumly sprayed with water (from a glass spray bottle), water sat for 2 minutes, then the area was scrubbed hard/scratched with a dry green scratchy pad. Caution: don't let the green scraper pad sit wet too long and then use it because once the green pad is wet, it can leave green smears on the wall. If this happens, it should come off with a white washcloth. The plaster (the kind we used anyhow) is so rock hard that it seemed to stand up to hard scrubbing. However, this method DID NOT work with the kind of red clay from our yard. If I were you, whatever stain you have, I would try a very small spot in a hidden place first. This method with clay from our yard/dog with his back against the wall made it WORSE.
i suddenly got cravings for a vanilla birthday cake !
LOL It looks like cake icing even when dry, so I have often looked at my walls and then gotten hungry for cake myself. :D
@@ChristaUpton 😂🤣
@@ChristaUpton it's me Lila 😃 phone brother gave me is registered in his name/plan though my email address is included wish I could fix it)
@@ChristaUpton So I finally get to see the Amazing man that has stuck w you thru your MCS thru Thick and Thin even near homelessness , they are Rare girl! It's a beautiful thing to watch..and people think this video is about building w plaster 😉 God bless you both! 💖💞💕💗
@@JuanCPerez-mx8zs Aw, how very, very sweet!! You are so right. This video is about much more than "plastering." It is about Love. I don't take my amazing spouse for granted. He has got to be one in a million. Love and God bless you, too!!
thank you for your quick response. this seems to be the solution to our problem.
to make the story short, we are going to have a metal building but our city does not allow corrugated look of metal siding. so we are going to cover with stucco. corrugated profile is similar to your video where wire is attached on the studs. any advice is appreciated
Sounds like a neat idea to put stucco over metal siding! Stucco is a reservoir cladding (holds water after rain), though, so you might want to look into the moisture issues with that. Here is a good article I found. buildingscience.com/documents/information-sheets/reservoir-claddings I am kind of thinking you will be okay, because I think the metal siding will act as both drainage plane and impermeable "sheathing." However, I do not know if you still need space (or more space) between the stucco and the metal siding. Your plan may already include that (I'm having trouble picturing the wire attached to the corrugated metal, or maybe I'm misunderstanding you. :) ) But here is the basic idea: when the stucco retains some absorbed water during/after a rain, you want it to be able to dry. If there is enough space/ventilation between the stucco and the metal corrugation, that should allow it to dry (moisture to run up and down the metal siding and get out) without affecting the interior of the wall. Stucco is mentioned specifically at the bottom of the article. I've never heard of stucco over metal, but I think it sounds really good because the stucco will truly be separated (by the metal) from any insulation, wood, etc. inside your wall, right?
I just thought of something else--you also might want to make sure any holes pierced through the metal (like where the lath is attached) are tight and/or caulked. This would help protect against any water coming in through the metal siding and affecting your interior walls. Also extra care may be needed at window openings.
Another article on reservoir claddings: www.greenbuildingadvisor.com/blogs/dept/musings/when-sunshine-drives-moisture-walls But here, it is specifically mentioned that in order for this problem to occur, permeable sheathing would be used. Since your metal siding is not permeable, again, you may be fine (even without ventilation). I'm not sure, though. Hopefully there are enough articles and / or other people to consult that could help! :)
STRUCTO-LITE is Not recommended over metal lath when a smooth trowel finish is required.
why?
what are you even talking about?
this is amazing!!
it is in real lilfe too :)
Awesome video!! Can you use this outside? I'm wanting to build me an outdoor fireplace with plaster on it.
NO, this application of plaster is not meant for outside, rain, etc. I would try to use a Portland cement instead. i think you would have much more success I think? But of cousre also follow fire rules and regulations.
what kind of wire you using? i am looking to use over a metal corrugated building
Great question! We used something from Menards, I think this: www.menards.com/main/building-materials/metal-framing/clarkdietrich-27-x-96-dimpled-self-furring-metal-lath/p-1444426597433-c-5695.htm?tid=-4353832731559144538
Hi, is this a lime plaster? What type of metal lath did you use? Looks great.
The plaster we used was this: www.usg.com/content/usgcom/en/products/walls/drywall/plasters/structo-lite-basecoat-plaster.html
The metal lath we used was something like this: www.homedepot.com/p/27-in-x-8-ft-Steel-Lath-2-5-METAL-LATH/202093395
Thank you and best wishes! :)
@@ChristaUpton thanks for the reply:) Merry Christmas
Thanks so much for sharing your excellent video and advices! I’m going to use plaster on my fireplace, after that first coat with the plaster you are using, what other coats do you recommend me to use?
Unfortunately I am not sure what should be used on a fireplace for fire safety. It seems like just another coat of plaster would be fine, but I don't for sure. I would ask a mason worker I think.
Christa Upton Thanks so much for your reply! Would you please let me know what plaster did you used on your video?
@@cirosochyesposito9443 We used this: www.usg.com/content/usgcom/en/products/walls/drywall/plasters/structo-lite-basecoat-plaster.html :) Two coats, although some areas have building codes for 3 coats, but that is for walls.
Christa Upton thanks so much for your reply and the link!
@@cirosochyesposito9443 You're so welcome!
this is plaster mix, did you already tried with a clay mix ?
No, we didn't try with clay mix. Not sure why. lol We just knew the plaster would work well for me, I guess.
That looks nice. How does the price compare to drywall?
Thanks! :) That is hard to say. :( The plaster itself is not expensive, but if you pay someone to do it, labor is quite expensive. But if you do it yourself, I am pretty sure it is cheaper than drywall. Sorry I don't really have more details than that. :P
Come on you lightweight, you could have gotten at least another shovel full of plaster on that hawk!
Ha ha!!! Made my husband laugh, too.. :)
Hi, great video, thanks. Are the walls 'chalky' to touch at all ? Do you know if, as a commercial product, it has any additives that will prevent that chalky finish ? In my limited experience with making home made lime plaster / render it has a chalky residue. Any info gratefully received !
when fully dried, the walls are not chalky to the touch nor have any residue at all. It it like touching rock or hardened cement only white. I have no idea about additives, I'm sorry, maybe you could call the manufacturers. one guy said you can't even sand it down, and I believe it given the hardness of this stuff. It dries in cake-frosting ridges, and even the ridges are impossible to manipulate, it's so hard. Our huge, black labrador rubs up against walls to scratch all the time, and NO white comes off on him. (you'd notice on a black lab. LOL there does not seem to even be white dust/chalk/lime in the dust ANYWHERE in our house. When we dust, mop, etc. it is all red due to the red clay paririe yard we have and that is what the dog and kids drag in. No white. Hope that answers your question. I wonder if I can make a video (not TOO soon, I'm recovering from a virus and pesticcide poisoning from town) with me knocking, scraping etc. on the walls. THey seem to be more impervious to just about anything than drywall, except you can't eaily wipe ketchup off. LOL If you want more info, feel free ro email me @ steveandchrista@yahoo.com
@@ChristaUpton thanks so much for your reply, really appreciate it, and very helpful ! Hope you're feeling better
@@joffdorkings620 Thank you so much!!!! You're welome. :)
@@joffdorkings620 tons better, BTW. my MCS is almost gone
Question.... Why didnt you just rock lathe the wall first ?
We needed a flexible containment material to contain the blown-in wool insulation. The metal lath worked for both this and the plaster. :) Also rock lathe contains paper, which is more mold-prone than metal or plaster. We chose to go extremely cautious on this front because of my extreme sensitivity to mold.
Christa Upton I think I see the blown in insulation sitting back from the studs but you mention using the metal mesh as the flexible backing for it. I’m looking to plaster over a cellulose insulated wall and wondering how you did yours. Thanks!
@@stevenbrooks9052 I'm sorry for the delay in responding; I did not see your question until now! First we stapled the metal lath to the studs enough to contain the insulation but leaving parts unstapled at the tops of the pieces of lath so you could blow the insulation in. After the insulation was in and thorough (to prevent condensation on the interior side of the siding), we stapled the tops. Then, we did the plaster over the lath. Let me know if you have any more questions!
and make sure the lath is facing the correct way
Yes, that would be good! :)
I just learned this -- that one side of the metal is almost serrated so that the plaster can adhere while the other side is smooth. The former goes up to hold the plaster- anti-gravity, pretty cool. The old metal lath (1930) was made that way specifically for plaster so the difference is obvious. This new stuff, I'm not sure
It looks like you don't have insulation? Do you have a moisture barrier?
We ABSOLUTELY have insulation!!!! R 19 in walls, R 36 in attic, if I remember right. But from the pinned NOTE at the top :) --"NOTE: Here my husband is plastering an interior wall which does not have (or need) insulation. For exterior walls, insulation should be installed behind the metal lath first. Here, the gray you see behind the bare metal lath is the backside of the completed plaster on the other side of that wall."
NO moisture barrier because with enough air barrier (plaster plus enough insulation) you don't need one and it just adds risk because it can trap moisture inside the wall as well as doing what it's supposed to do. :P There is more information on this in our book and an experiment here: www.blackhillspicturebooks.com/2016/11/17/metal-siding-wall-stats/
My metal lathe is not anywhere near as close together as yours, any suggestions on how to get it to cover very wide holes?
You could try making a thicker mixture. Otherwise, I am not too sure. :(
This is all you have to do to plaster a wall?
Some area building codes require 3 coats of plaster. Ours are doing great after 29 months with only 2 coats. :) It is fun having plain plaster walls vs. typical drywall.
Just wanted to update. It will be 4 years in 5 days. :) Walls still look fantastic. Except where someone spilled ketchup on one spot, a few scrapes, and some dirt on a place or two. :) I want to look into sanding these down or adding a little plaster over the dirt. I'll try to post a video if we do. Overall, not bad I think for 3 kids, a wheelchair, and a 96 lb. black Labrador, as far as durability of walls. :D
@@ChristaUpton would love to see how your walls look now. I can't wait to finish. Yours was the only video I found for plastering on metal lath without being perfect.. All the ego around plastering is interesting, I know it takes time to get good but Jeeze Louise I'm glad you showed your husband doing a decent job and hearing that it turned out well
@@karenflowers9711 Thanks :) I still LOVE my walls!!!! The "variation" in "not perfect" I think is charming. Plus you can find shapes (like in the clouds) and it also looks like icing (so makes me want cake. LOL) Anyhow, I'm hoping to make a new video soon. Actually to show how we switched to mostly metal furniture. But you'll see the walls... OH did you already see the house tour? That one shows the walls all done from about 4 years ago.
@@karenflowers9711 My new video got delayed, but hopefully sometime in the next 6 months! :P
Can you plaster over a pool liner?Vertically that is.
I am so sorry, I do not know the answer to that question.
Just pool liner? You need something for structural support and for the plaster to key into, wood or wire lath.
That makes sense!! Thank you for chiming in.
Uou are definitely not a plasterer
Apparently he is, because my walls are awesome.
gawd your slow at plastering
ALWAYS a party pooper shows up. Every damn time
@@karenflowers9711 Thank you. The love that my husband put into this for me, and his patience, as well as everyrhing he has given up for me has been phenomenal, and the unwarranted criticism is just ridiculous.