Bonding plasterboard to wall

jdpl28

Hi,

i'm planning on putting up some plasterboard on to a masonry wall, and was wondering is bonding it the best way to go? How easy is it too do? Do you use just bonding, or bonding compound?

Also wondering about sound dampening. How does it compare to putting up wooden supports and nailing to the wood?

thanks,
J

311

Have you looked into soundproof plasterboard ?

I did a job in a house ,where the girl had done a massive amount of study into insulation.

She bought plasterboard with fibreglass type insallation attahced.
I have to say ,it was the best soundproofing type material that I have ever seen. And it also had the highest insulation properties. VERY HEAVY THOUGH.

jdpl28

Would that be Fermacell?

Looked briefly into it, but couldn't find anywhere to get it. Chadwicks don't do it.

stag39

blobbing plasterboard directly on to a wall would amplify any sound through the wall from either room... best cheap way is to use 2 by 1's on to the wall, fill the resultig gap with fibre insulation then plasterboard on to the wood

De_man

jdpl28 wrote:

Hi,

Do you use just bonding, or bonding compound?

bonding will do fine

jdpl28

stag39 wrote:

blobbing plasterboard directly on to a wall would amplify any sound through the wall from either room... best cheap way is to use 2 by 1's on to the wall, fill the resultig gap with fibre insulation then plasterboard on to the wood

What type of fiber insulation? i can only seem to get rockwool/fiberglass in 100mm depth, and there's no way this would fit behind a board fixed with a 2X1. Can you get rockwool at 20mm?

thanks,
J

kkelliher

J

plasterboard with attached insulation is by far the best way to go. You can attach it to the wall using special plastic plugs or by dapping on Lafarge bonding adhesive onto the slab and straight onto the wall. Make sure you get lafarge adhesvie bonding as gypsum bonding compound is not the same.

2x1 with insulation actually allows sound to travel easier than straght onto the wall due to the air pockets which allows vibration. A solid structure with no gaps is a better job. Your other option is to simply bond and skim the wall with gypsum bonding and skim. Do you need the plasterboard?

regards

keith

De_man

kkelliher wrote:

J

plasterboard with attached insulation is by far the best way to go. You can attach it to the wall using special plastic plugs or by dapping on Lafarge bonding adhesive onto the slab and straight onto the wall. Make sure you get lafarge adhesvie bonding as gypsum bonding compound is not the same.

regards

keith

Yep plasterboard with the attached insulation is the job
available in 38mm & 50mm thicknesses (incl plasterslab)

cost per 38mm slab Kingspan TW52 approx 29yoyo, 50mm cost about 39euro
"Plastic Plugs" i.e. Mushrooms use 90mm for the 38mm or 110mm
for the 50mm - use an absolute minimum of 9 per mushrooms per slab
i'd normally use 12

Lafarge bonding adhesive - don't know about that!!
gypsum bonding will do the job fine (blue bag) and is time proven,
just don't use the gysum bonding compound (green)

cut slab to required measurements, mix bonding to "whipped ice cream texture" cover slab with a very thin layer (paper side), attach slab to wall
drill holes, insert mushrooms and belt them with a hammer:)

might be worth it for you to get someone to do it for you

cost per slab labour (insulated slab) about 9 euro, normal slab 7

Enjoy

Reyman

De_man wrote:

[
cut slab to required measurements, mix bonding to "whipped ice cream texture" cover slab with a very thin layer (paper side), attach slab to wall
drill holes, insert mushrooms and belt them with a hammer:)

might be worth it for you to get someone to do it for you

cost per slab labour (insulated slab) about 9 euro, normal slab 7

Enjoy

Why do you need the mushrooms when you have bonding compound already holding the board ?

De_man

Reyman wrote:

Why do you need the mushrooms when you have bonding compound already holding the board ?

hi ya Reyman you've a point there, and really you can use one or the other

i had been told to use both the bonding and mushrooms and that's what
i did, my plasterer demanded it!!!

imho the mushrooms are a better job than the bonding and easier to attach the slabs to the walls.

there's also an issue with dewpoint/condensation occurring between the slab and wall, if the slab isn't bonded, condensation can occur between slab and and inside block -for the sake of 6euro a bag imho it's well worth it




a pint of plain is yer only man