Oct
16
How Do You Repair Large Holes In Plaster Walls There Are Lathe Or Lap? Boards Behind The Plaster This Is A Old
Byi do not want to remove the old plaster just repair the walls where the plaster has fallen out
- More Posts
- Choosing The Right Inkjet Toner Cartridge
Changing inkjet toner cartridges could be a little more than foreign if you do not have experience dealing with machines. The biggest thing...
6 Comments
October 16th, 2009 at 5:48 am
simply appling mud to the surface will not work. If its a large hole you have to cut out a drywall patch to fill the hole, screw it in place, tape and float,texture and it will not be noticed. Easy to do, but hard to explain.
October 16th, 2009 at 6:24 am
Easy job! I’m almost done restoring an 1908 home, here’s a good link to get u started:
http://www.thisoldhouse.com/toh/knowhow/repair/article/0,16417,1172537,00.html
October 16th, 2009 at 7:07 am
1) you can square out the hole by scoring the squared area with a utility knife several times, afterwhich the plaster should break clean on the scored lines, after light tapping.. Before you outline your square, you want to make sure the vertical sides are breaking on the studs, or 2 x 4s, in the wall, which are usually 16″ apart; hopefully you can see one of them from the hole. After you’ve made your hole square, you’re going to patch it with a piece of drywall of the same thickness, which will probably be 3/8′or 1/2 “. Then you’re going to drive fasteners, about 12′ apart minimum into the studs. Sink the fasteners slightly below the surface, so you can cover them up with joint compound.
Now, to the finishing, you need to apply a tape, to reinforce all the joints; I reccomend fiberglass, it’s self adhesive. Then you’re going to apply joint compound over the joint in three coats; with each coat the finish will get smoother, as long as you put good pressure on the knife(trowel) when you smooth the plaster. You don’t want the coat of plaster to be thick, you want it to be flat. Bring each coat wider than the preious coat, then sand it prime it, paint it!
2) If the hole is no bigger than a small plate, then get a type of plaster called Durabond, which you mix with water. It comes in different setting times(20, 45, 90). It dries hard, and doesn’t shrink much, which is what you want; you’re making your own drywall. Remove any loose plaster before patching. After your Durabond is set, go over it with two coats of a lighter plaster(Durabond is too hard to sand), just as you would in the first method. Voilla!
October 16th, 2009 at 7:16 am
If you have lathes behind the area that you want to repair, simply apply joint compound or mix up some plaster. The joint compound will have to be applied in a couple of thin layers. Make sure the plaster around the patch area is not loose. If you do nut have lathes, I have used Styrofoam cut to the size of hole. Just push it in and you can skim coat over it.
October 16th, 2009 at 7:20 am
I grew up in a 100 yr old farmhouse with the same problem. My father always stuffed the hole with newspaper and then mudded over it and then sanded it.
October 16th, 2009 at 8:16 am
Go to the local supply house and get the “mud” can’t think of the correct name, it is all ready mixed up and ready to use. Only apply a small amount at a time and allow it to dry, like over night and then apply some more to bring it up to the existing wall. Don’t over do it as the more you put on the more you have to sand off. Use a large trowel, flat not pointed. Has been a long time since I did it my self, 1955.
When sanding use a small piece of 2×4 and tack the sand paper on it, will give you a better finish.