Well.. I didn't know this when using 50mm insulated plasterboard. I used the 50mm insulated plasterboard around my window reveal too and now there is only like 10mm of window frame showing. it looks so strange. I litterly have plasterboard, then 10mm of window frame and then the glass haha. Thankfully I saw this before doing the entire house. now I know what I'm suppose to use haha ! If it ends up being an issue, Its an easy fix anyway.
You can still get black spot even after using insulated plasterboard because it’s the window that draws moisture and you will always get a certain amount of moisture soaking into the plaster skim because it’s hemihydrate, you could use kitchen and bathroom paint but that’s not breathable so IMO it’s always going to be a battle stopping mould around windows.
The only way to stop that is to make sure the Relative Humidity does not get to high either by removing it via ventilation or dehumidifying, or by not adding the water to the air in the 1st place... as much as is possible anyway
Now I might be mad, but I am insulating a whole wall with these now. reason, I do want to improve the insulation value in a little office room, but the layout does not allow for thick insulation on the internal wall due to the door position. These seem to be my only options in thickness. I hope the effort is worth it.
I used expanding foam. I cut my insulation to size, sprayed foam onto the back of the insulation, wait for it to expand and go tacky then press it into place. just make sure you have something to hand to help you hold the insulation in place whilst you level it and whilst the foam sets.
i would use the same material for the reveals. Notch the foam on the wall insulation and the reveal insulation leaving just the plasterboard then marry both notches to form a plasterboard corner. only gonna work though if you have the space to do it without losing too much of the PVC.
If you would like more information on Internal wall insulation please email stuart@sdrplastering.co.uk Alternatively use our customer contact form here form.123formbuilder.com/2387712/contact-lead-form Thank you
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Well.. I didn't know this when using 50mm insulated plasterboard. I used the 50mm insulated plasterboard around my window reveal too and now there is only like 10mm of window frame showing. it looks so strange. I litterly have plasterboard, then 10mm of window frame and then the glass haha. Thankfully I saw this before doing the entire house. now I know what I'm suppose to use haha ! If it ends up being an issue, Its an easy fix anyway.
Thank you, I was thinking to use 8mm tile backer board I had spare around my window reveals, this has confirmed my idea!
Hi thank you very much for this information is great.. just wondering is it OK to use laminate floor pvc underlay on window reveal?
You can still get black spot even after using insulated plasterboard because it’s the window that draws moisture and you will always get a certain amount of moisture soaking into the plaster skim because it’s hemihydrate, you could use kitchen and bathroom paint but that’s not breathable so IMO it’s always going to be a battle stopping mould around windows.
The only way to stop that is to make sure the Relative Humidity does not get to high either by removing it via ventilation or dehumidifying, or by not adding the water to the air in the 1st place... as much as is possible anyway
Now I might be mad, but I am insulating a whole wall with these now. reason, I do want to improve the insulation value in a little office room, but the layout does not allow for thick insulation on the internal wall due to the door position. These seem to be my only options in thickness. I hope the effort is worth it.
It'll certainly be worth it. Just 6mm of XPS insulation will offer around 25 - 30% R-value gains
Great idea, will do this
What adhesive product are you using to bond the PIR/plasterboard laminate to the brickwork please?
I used expanding foam. I cut my insulation to size, sprayed foam onto the back of the insulation, wait for it to expand and go tacky then press it into place. just make sure you have something to hand to help you hold the insulation in place whilst you level it and whilst the foam sets.
Proctor Spacetherm Liner
If you have the budget yes but it ain’t cheap
If the insulation board you’re putting on the walls has a vapour barrier do you need to do the same with the window reveals?
i would use the same material for the reveals. Notch the foam on the wall insulation and the reveal insulation leaving just the plasterboard then marry both notches to form a plasterboard corner. only gonna work though if you have the space to do it without losing too much of the PVC.
What do you mean
great to know good info
That’s Jacko board ?
Thanks for the video. Can you share the name and make of this material please?
What do you do then? Plaster straight onto the thin profile insulation?
Prime first 👍 ensure plenty of adhesive behind. I recommend using either AC50 or a PU adhesive.
That’s tile board
Is the thin insulation the finish, ready to plaster, or is a regular plaster board applied to it.
It can be plastered
If you would like more information on Internal wall insulation please email
stuart@sdrplastering.co.uk
Alternatively use our customer contact form here
form.123formbuilder.com/2387712/contact-lead-form
Thank you
Hey mate is that plasterboard the moisture resistant one please
What make is it? Cheers.
Tile backer board in the window reveal Wickes and B&Q sell it
6mm insulation waste of time no were near building regulations.
What would you use if the window frame is 10mm? If you know a more effective product thats between 6 & 8mm please drop a link in 👍
Exactly! Wickes are out of stock. Do you have a link to some 10mm backer board?