Bathroom ceilings

I

inkos

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I want to replace the ceilings in my home.
For the bedrooms I will go with isoboad (isopine finish) as its a celling with insulation.
I want to continue with the isoboard in the bathroom, but concerned about potential mould growth. The brochure says it should not promote mould growth, but anyone have any experience?

I have looked at lamdaboard or their equivalent decoboard product (only available in 30mm) which is more expensive than isoboard when looking at R values and ignoring the thickness. (50mm isoboard has a higher R value and more cost effective than the 30mm decoboard)

Pvc ceilings apparently doesn't get mould growth in bathrooms, however it doesn't have insulation properties so that must be considered.

Please let me know your experience with having isoboard in bathrooms
 
I am a Ceiling Specialist.
There is no type of ceiling I have not installed.

My least favorite ceiling is PVC, followed closely by Isoboard.

The R rating of 25mm Isoboard is 1.04, anything under 2.5 is a waste of time.
The R rating of a standard Herculite/Gypsum ceiling with 135mm Isotherm is well over 3.5.

Fitting downlights to Isoboard is a b¡tch because the clips are designed to push down on a board no thicker than 10mm, so with 25mn or 30mm Isoboard the clips stand up like a person in the 'hands up' position.

Isoboard boards and to a lesser extent, PVC, are held up, partially, by silicon, which, over years, will harden and become less adhesive.
When I do Isoboard ceilings I buy double the amount of clips to try hold it up better.

The Isopine pattern is the nicest one as it has the grooves, but one of those grooves is the joint, no matter how well you do the installation, you can always easily see the joint, you can silicon that gap until you are blue in the face.

It's funny that, with all the advancements and technology over the years, they haven't managed to come up with a better ceiling system than good old Gypsum/Herculite.

My favorite ceiling is a flush plastered ceiling suspended off steel brandering, with 135mm Isotherm & nice simple molded cornices.

If you have any questions, I have 30 years experiance in ceiling installation. I even went to Kembs in France to do a ceiling course with Barrisol....
 
Mannydefreitas said:
I am a Ceiling Specialist.
There is no type of ceiling I have not installed.

My least favorite ceiling is PVC, followed closely by Isoboard.

The R rating of 25mm Isoboard is 1.04, anything under 2.5 is a waste of time.
The R rating of a standard Herculite/Gypsum ceiling with 135mm Isotherm is well over 3.5.

Fitting downlights to Isoboard is a b¡tch because the clips are designed to push down on a board no thicker than 10mm, so with 25mn or 30mm Isoboard the clips stand up like a person in the 'hands up' position.

Isoboard boards and to a lesser extent, PVC, are held up, partially, by silicon, which, over years, will harden and become less adhesive.
When I do Isoboard ceilings I buy double the amount of clips to try hold it up better.

The Isopine pattern is the nicest one as it has the grooves, but one of those grooves is the joint, no matter how well you do the installation, you can always easily see the joint, you can silicon that gap until you are blue in the face.

It's funny that, with all the advancements and technology over the years, they haven't managed to come up with a better ceiling system than good old Gypsum/Herculite.

My favorite ceiling is a flush plastered ceiling suspended off steel brandering, with 135mm Isotherm & nice simple molded cornices.

If you have any questions, I have 30 years experiance in ceiling installation. I even went to Kembs in France to do a ceiling course with Barrisol....
Click to expand...
Why is PVC your least favourite?
 
I have previously installed pvc ceilings and in my opinion they always have a plastic and cheap look to them. I have done it on clients request but I'll never do it in my own home.... but this is just my opinion.
 
Mannydefreitas said:
I am a Ceiling Specialist.
There is no type of ceiling I have not installed.

My least favorite ceiling is PVC, followed closely by Isoboard.

The R rating of 25mm Isoboard is 1.04, anything under 2.5 is a waste of time.
The R rating of a standard Herculite/Gypsum ceiling with 135mm Isotherm is well over 3.5.

Fitting downlights to Isoboard is a b¡tch because the clips are designed to push down on a board no thicker than 10mm, so with 25mn or 30mm Isoboard the clips stand up like a person in the 'hands up' position.

Isoboard boards and to a lesser extent, PVC, are held up, partially, by silicon, which, over years, will harden and become less adhesive.
When I do Isoboard ceilings I buy double the amount of clips to try hold it up better.

The Isopine pattern is the nicest one as it has the grooves, but one of those grooves is the joint, no matter how well you do the installation, you can always easily see the joint, you can silicon that gap until you are blue in the face.

It's funny that, with all the advancements and technology over the years, they haven't managed to come up with a better ceiling system than good old Gypsum/Herculite.

My favorite ceiling is a flush plastered ceiling suspended off steel brandering, with 135mm Isotherm & nice simple molded cornices.

If you have any questions, I have 30 years experiance in ceiling installation. I even went to Kembs in France to do a ceiling course with Barrisol....
Click to expand...
Always good to learn something.
 
Echolab said:
I have previously installed pvc ceilings and in my opinion they always have a plastic and cheap look to them. I have done it on clients request but I'll never do it in my own home.... but this is just my opinion.
Click to expand...

it depends

some places it does look nice especially when there is downlighters but it does give off a little plastic look
 
Mannydefreitas said:
I am a Ceiling Specialist.
There is no type of ceiling I have not installed.

My least favorite ceiling is PVC, followed closely by Isoboard.

The R rating of 25mm Isoboard is 1.04, anything under 2.5 is a waste of time.
The R rating of a standard Herculite/Gypsum ceiling with 135mm Isotherm is well over 3.5.

Fitting downlights to Isoboard is a b¡tch because the clips are designed to push down on a board no thicker than 10mm, so with 25mn or 30mm Isoboard the clips stand up like a person in the 'hands up' position.

Isoboard boards and to a lesser extent, PVC, are held up, partially, by silicon, which, over years, will harden and become less adhesive.
When I do Isoboard ceilings I buy double the amount of clips to try hold it up better.

The Isopine pattern is the nicest one as it has the grooves, but one of those grooves is the joint, no matter how well you do the installation, you can always easily see the joint, you can silicon that gap until you are blue in the face.

It's funny that, with all the advancements and technology over the years, they haven't managed to come up with a better ceiling system than good old Gypsum/Herculite.

My favorite ceiling is a flush plastered ceiling suspended off steel brandering, with 135mm Isotherm & nice simple molded cornices.

If you have any questions, I have 30 years experiance in ceiling installation. I even went to Kembs in France to do a ceiling course with Barrisol....
Click to expand...
@purple face is also a ceiling inspector most weekends
 
Bewlen said:
Why is PVC your least favourite?
Click to expand...
It looks kitsch, especially when they 1st came out and were shiny, or had patterns.
Although these days you do get a Matt finish.

It needs insulation.

Made in China.

Emits a toxic chemical when it burns.

These are so many colours and styles that you have to buy material specifically for each job, you cant keep stock like with other ceilings.

Repairs are a b¡tch as the client can never tell you where the one they have is from, so you either have to try find it, or force them to do the entire room.

It's Plastic!!!!

I think it would yellow over the years, most cheap white plastics do...
 
Bewlen said:
Why is PVC your least favourite?
Click to expand...
We did PVC in the kitchen, just a plain white.

Reason being it's reflective and helps with the lightning, because the kitchen is south facing and doesn't get natural sunlight. It's simply stuck onto the existing board.

IMG_20240319_124634.jpg

I wouldn't do it in the rest of the house because it could end up looking tacky. Especially if you go with those hideous pattern ones...
 
Mannydefreitas said:
I am a Ceiling Specialist.
There is no type of ceiling I have not installed.

My least favorite ceiling is PVC, followed closely by Isoboard.

The R rating of 25mm Isoboard is 1.04, anything under 2.5 is a waste of time.
The R rating of a standard Herculite/Gypsum ceiling with 135mm Isotherm is well over 3.5.

Fitting downlights to Isoboard is a b¡tch because the clips are designed to push down on a board no thicker than 10mm, so with 25mn or 30mm Isoboard the clips stand up like a person in the 'hands up' position.

Isoboard boards and to a lesser extent, PVC, are held up, partially, by silicon, which, over years, will harden and become less adhesive.
When I do Isoboard ceilings I buy double the amount of clips to try hold it up better.

The Isopine pattern is the nicest one as it has the grooves, but one of those grooves is the joint, no matter how well you do the installation, you can always easily see the joint, you can silicon that gap until you are blue in the face.

It's funny that, with all the advancements and technology over the years, they haven't managed to come up with a better ceiling system than good old Gypsum/Herculite.

My favorite ceiling is a flush plastered ceiling suspended off steel brandering, with 135mm Isotherm & nice simple molded cornices.

If you have any questions, I have 30 years experiance in ceiling installation. I even went to Kembs in France to do a ceiling course with Barrisol....
Click to expand...

So what you're saying is do a normal ceiling + insulation?
What kind of insulation do you recommend?
 
Mannydefreitas said:
I am a Ceiling Specialist.
There is no type of ceiling I have not installed.

My least favorite ceiling is PVC, followed closely by Isoboard.

The R rating of 25mm Isoboard is 1.04, anything under 2.5 is a waste of time.
The R rating of a standard Herculite/Gypsum ceiling with 135mm Isotherm is well over 3.5.

Fitting downlights to Isoboard is a b¡tch because the clips are designed to push down on a board no thicker than 10mm, so with 25mn or 30mm Isoboard the clips stand up like a person in the 'hands up' position.

Isoboard boards and to a lesser extent, PVC, are held up, partially, by silicon, which, over years, will harden and become less adhesive.
When I do Isoboard ceilings I buy double the amount of clips to try hold it up better.

The Isopine pattern is the nicest one as it has the grooves, but one of those grooves is the joint, no matter how well you do the installation, you can always easily see the joint, you can silicon that gap until you are blue in the face.

It's funny that, with all the advancements and technology over the years, they haven't managed to come up with a better ceiling system than good old Gypsum/Herculite.

My favorite ceiling is a flush plastered ceiling suspended off steel brandering, with 135mm Isotherm & nice simple molded cornices.

If you have any questions, I have 30 years experiance in ceiling installation. I even went to Kembs in France to do a ceiling course with Barrisol....
Click to expand...
myBBceilingexpert
 
Insulation:
Any of the 'Lay In' products like Isotherm (Green), Aero lite (Pink), Fabufil (White) are good and have similar R ratings.

I personally use Isotherm, my guys refuse to work with Aerolite Think Pink because it's itchy.

The blow in types are crap because when we do a Ceiling replacement it makes a mess, it's also a Beeyatch to put back in again.

Also the loose stuff like Vermiculite, or the other blow in stuff, is Fire Retardant, not Fire Ptoof.
It burns. The older it gets, the more flammable it gets.


I only fit 135mm thick.
It is the regulated minimum thickness.
100mm and 75mm and 50mm is pointless..
 
Mannydefreitas said:
Insulation:
Any of the 'Lay In' products like Isotherm (Green), Aero lite (Pink), Fabufil (White) are good and have similar R ratings.

I personally use Isotherm, my guys refuse to work with Aerolite Think Pink because it's itchy.

The blow in types are crap because when we do a Ceiling replacement it makes a mess, it's also a Beeyatch to put back in again.

Also the loose stuff like Vermiculite, or the other blow in stuff, is Fire Retardant, not Fire Ptoof.
It burns. The older it gets, the more flammable it gets.


I only fit 135mm thick.
It is the regulated minimum thickness.
100mm and 75mm and 50mm is pointless..
Click to expand...
I would imagine the thinner options are actually harder to work with as well.

Makes me wonder what’s it my roof but I would guess 100mm going from memory.

What’s the R rating?
 
R VALUES:
Under 2.0 (waste of time) :
50mm or 75mm Isotherm, Aero lite or Fabufil
25mm or 30mm Isoboard

2.0 to 2.5 (acceptable) :
100mm Isotherm, Aero lite or Fabufil

Above 2.5 (now you're talking) :
135mm or thicker Isotherm, Aero lite or Fabufil.
Cavity Batt (Sound stop) over 100mm thick
 
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