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R Value……… |
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Lars(wi) ![]() Orange Level Access ![]() ![]() Joined: 14 Sep 2009 Location: Permian Basin Points: 6993 |
![]() ![]() ![]() ![]() ![]() Posted: 08 Jan 2024 at 1:30pm |
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Of Sheetrock vs fiberboard.
Removed the paneling, and fiberboard(osb?) on the 4th wall of the bedroom over the weekend. Behind the paneling was 5/8” of fiberboard, behind that is the stucco wall, which is uninsulated. My question is how much R factor was this 5/8 fiberboard? Also would 5/8” sheet rock be a better replacement? If I go that route. |
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Tbone95 ![]() Orange Level Access ![]() ![]() Joined: 31 Aug 2012 Location: Michigan Points: 11495 |
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Never mind my original post, I totally misunderstood.
If by fiberboard you have what I think you mean, that’s quite a bit better. Edited by Tbone95 - 08 Jan 2024 at 3:04pm |
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jaybmiller ![]() Orange Level Access ![]() Joined: 12 Sep 2009 Location: Greensville,Ont Points: 22106 |
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both sheetrock and OSB have similar R-value ( about 0.5 ) , aka next to nothing... If possible, install 1" of styrofoam, then 1/2" drywall. styrofoam has R-value of about 4. If you use the silver backed stuff ,it's better. My back hurts thinking about lifting 5/8" sheetrock !!!
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
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steve(ill) ![]() Orange Level Access ![]() ![]() Joined: 11 Sep 2009 Location: illinois Points: 79609 |
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As Jay said, wood or drywall does not have much of an R valve... Now particle board has more STRENGTH than drywall if that is important in that location... Plywood is even better for structure..
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Like them all, but love the "B"s.
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Lars(wi) ![]() Orange Level Access ![]() ![]() Joined: 14 Sep 2009 Location: Permian Basin Points: 6993 |
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The current wall is the old fashioned lath & plaster, except instead of the wooden lath strips, the steel mesh was used. Not sure why a previous owner put up the fiberboard(usb, or osb, or whatever the proper name is) then covered with paneling. Possible to ‘bury’ lead based paint behind a ‘new’ wall, or to avoid maintaining stucco? This structure is pre WWII construction, and was purchased from the US Government, then moved to this present location.
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Pat the Plumber CIL ![]() Orange Level ![]() ![]() Joined: 11 Sep 2009 Location: Springfield,Il Points: 4742 |
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Attached osb to wall and then attach sheet rock to plywood . Plywood evens out surface and now have more consistent means of securing sheetrock . If you have ever tried hanging drywall over plaster it is better this way . Have to use longer screws and much more even surface to work with. Plaster tends to fall apart when a lot of screws are ran through it. This way fewer longer screws hold osb in place
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You only need to know 3 things to be a plumber;Crap rolls down hill,Hot is on the left and Don't bite your fingernails
1964 D-17 SIV 3 Pt.WF,1964 D-15 Ser II 3pt.WF ,1960 D-17 SI NF,1956 WD 45 WF. |
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jaybmiller ![]() Orange Level Access ![]() Joined: 12 Sep 2009 Location: Greensville,Ont Points: 22106 |
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a lot of old plaster has asbestos in it........ most 9" floor tiles do as well....
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
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Lars(wi) ![]() Orange Level Access ![]() ![]() Joined: 14 Sep 2009 Location: Permian Basin Points: 6993 |
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In my instance here, the osb is glued to the old plaster walls, then the paneling is glued & stapled to the osb. After 40 plus years, the paneling, and osb have pulled away from each other in places. |
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Lars(wi) ![]() Orange Level Access ![]() ![]() Joined: 14 Sep 2009 Location: Permian Basin Points: 6993 |
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So far, no tile found. Floors in some rooms have a rubber type laminate flooring on top of wood floor. The wood appears to be a stained possible pine, don’t believe it’s oak. The laminate is long pieces that are somewhat glued together, but not glued to the wood floor. The laminate will eventually be removed, and plan on having the wood floors refinished. |
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Pat the Plumber CIL ![]() Orange Level ![]() ![]() Joined: 11 Sep 2009 Location: Springfield,Il Points: 4742 |
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I am sure they were thinking that if they glued the osb up then they could screw to the sheetrock to the osb . Don't disturb the asbestos in the plaster. Not a very good way to hang drywall, adds a lot of weight to the house and then the plaster comes loose and falls down between osb and existing studs. |
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You only need to know 3 things to be a plumber;Crap rolls down hill,Hot is on the left and Don't bite your fingernails
1964 D-17 SIV 3 Pt.WF,1964 D-15 Ser II 3pt.WF ,1960 D-17 SI NF,1956 WD 45 WF. |
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tadams(OH) ![]() Orange Level Access ![]() ![]() Joined: 17 Sep 2009 Location: Jeromesville, O Points: 9937 |
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I would try to located the studs and screw the osb that up to the studs and not horse withe the old plaster, then apply what ever wall cover you are going to use.
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Lars(wi) ![]() Orange Level Access ![]() ![]() Joined: 14 Sep 2009 Location: Permian Basin Points: 6993 |
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The paneling, and the osb are out the door. Plan on just patching the old plaster. So far, glue removal is the biggest hurdle, using an adhesive remover will soften the glue, to facilitate scraping off, any paint removal is done using the ‘wet method’. No dry scraping or sanding. Even where patches filled in with mud are wet sanded, have 3 of the 4 walls completed, two coats of primer paint. When we( meaning the wifey)decide on final paint color, texture will be added to the paint. I’ve never cared for the ‘spray on’ texture.
Edited by Lars(wi) - 09 Jan 2024 at 7:38pm |
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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