Fixing a Hole

karrie3, Feb 18, 10:38pm
I have a large egg sized hole in my lounge wall courtesy of the previous owner who used handyman skills in bringing a telephone wire through from the next room.
How to fix it please? Phone's been relocated! I have some bits of gib but can't work out how to attach it as there's nothing behind to nail or glue it to
Thanks for any advice :-)

issymae, Feb 18, 10:41pm
have a look at Mitre10 or Bunnings website, they may have a tutorial

lemming2, Feb 18, 11:04pm
Cut a piece of scrap gib that you can fit through the hole but bigger than the hole overall (angling it to get it through). Thread a bit of string through the middle of the piece of gib before you put it through, and spread some glue eg No Nails where it will overlap the hole when you straighten it up.
Then, put it through, carefully, line it up, and pull back on the string so it (and the glue) jam up hard behind your hole. You'll need to hold it tight, or in some way wedge it firmly until the glue is set, then, when all is dry and firm you have a base to fill the hole against!

maclad, Feb 18, 11:08pm
Good method but always used cardboard as it can be folded put thru hole and then unfolded and then place a pencil or similar across the hole and tie string firmly to it until glue sets.

tooyoung, Feb 18, 11:24pm
Great idea!
I have hole in a hardboard wall courtesy of an electrician.
If I followed this then used 'Builders' Fill' Would this work. ie be smooth enough. Any other ideas would be most helpful.

piquant, Feb 18, 11:30pm
i always cut a straight "box" round the hole. That way you have corner to corner to fit the gib through. (I favour lemming's method of using gib to start with.) Then, after you have a good, dry bond, cut out a very slightly smaller square and glue that on to the repair, cutting the string off flush as you go). Once that is dry and flush you have an easier patch to skim and sand. and less likelihood of the filling shrinking or cracking as it dries.

t_naki, Feb 19, 1:30am
I do the same as piquant. It is better to fill as much of the hole with Gib as possible and so when you are filling you only fill the gap between the lining and the patch. Another thing that makes it easy to fill is to bevil the corners of the hole and the patch. It is easier to fill and you remove all the little bits of paper and plaster that get into the filler

zak410, Feb 19, 1:53am
for small holes, cut square hole, then 'tight fit' a square of gib so it stays there, unfixed,

then cover the area with 'fiba tape' self adhesive tape and lightly cover with bedding compound, when dry apply second coat, when that's dry apply thin layer of finishing compound, sand, paint.

karrie3, Feb 19, 2:17am
Ah, so that's how it's done! I was thinking of gluing the gib on top of the hole and sanding it back but had a feeling that wouldn't work. I'll give it a go tomorrow :-) thanks

atlantis3, Feb 19, 3:42am
Yep fill the hole with a piece of gib - first cut a patch that is bigger than your hole and then put this piece over the hole in the wall and draw a pencil line around it. You can now cut the hole in the wall to the same size and exact shape as your patch. You will have to remove some of the thickness of you patch as you don't want it to be proud of the wall once you have glued it in The no more nails glue can make it sit proud (you want it to sit about 1 to 2 mm behind the front face of the wall) and yes bevel the edges. You can buy small amounts of http://www.selleys.co.nz/fillers/rigid-filler/ready-to-use/rapidfilla/ or similar
to fill the gaps but I have always used a skim coat over this as they are easier to sand and the ready mixed skim coats come in a much larger container. and yes check out the mitre 10 help site.

blueviking, Feb 19, 12:44pm
Instead of using string, you bang a nail through with the head on the inside of the patch. Then when the glue is hard, just push the nail into the cavity.

piquant, Feb 19, 2:02pm
So how do you ensure that you get a good bond when you have nothing to fix it against? Relying on the edges holding together seems very tenuous to me and difficult to get it to sit properly and flush. Surely then placing a tape over the fix will effectively sit proud of the rest of the wall? Seems like a bit of a quick fix remedy that has the ability to fall out at the slightest pressure if you ask me. (Which I know you are not - just saying! )

zak410, Feb 19, 2:10pm
fibatape is a fibreglass mesh, very thin, plaster go through and makes bond, perfect for small holes, proven.

kenw1, Feb 19, 5:35pm
If the sheet is bracing gib, and the hole is larger than a double socket you have problems.

jhan, Feb 19, 5:45pm
Yes, thats what we did, you'd never know there had been holes there.

t_naki, Feb 19, 10:04pm
lol,

If the house is going to have stability problems because of a hole in the Gib on a bracing element then your house has problems long before the hole.

kenw1, Feb 19, 10:23pm
A house I was involved with (not as the builder) had issues, so the "chippy" cut a big hole in a sheet of bracing gib so that the internal space could be inspected for moisture, it gave me great pleasure to inform him that a hole that large could not be blocked and filled, replace the whole sheet.

zak410, Jun 13, 4:44am
It gave you great pleasure! are you a building inspector by chance?

I'm sure in practice the hole could have been fixed without compromising the integrity of the bracing. but yeah, the rules are the.