Airtightness Paint

Moggaman · 11-10-2021 1:04pm #1

Hi all.

chasing will start on my house in a week or so. I want to paint the chases on external walls with Airtightness paint before 1st fix .. any recommendations on a decent product please. I also intend on painting the block between underside of precast and the room ceiling..

thanks

MicktheMan · 24-10-2021 8:26pm

PM sent

keno-daytrader · 26-10-2021 12:38pm

I used Partel and blowerproof, there is also Belgacoat google all them and you will find suppliers.

listermint · 26-10-2021 12:40pm

Is the airtightness issue here no the chase itself rather the entry and exit points. I.e paint isn't the solution for solving air tightness in a chase?

keno-daytrader · 26-10-2021 12:46pm

https://www.boards.ie/discussion/comment/118074345#Comment_118074345

Blocks are porous to air and water and are not airtight, we paint the box chasing and wall chasings and make the conduit airtight if going into attic for example with Acrabond or any airtight membrane adhesive and then airtight tape.

So both are susceptible to air leakage.

listermint · 26-10-2021 12:49pm

https://www.boards.ie/discussion/comment/118074388#Comment_118074388

Cheers !

Although from the first sentence then wouldnt you paint the entire wall not just chase ?

keno-daytrader · 26-10-2021 12:58pm

https://www.boards.ie/discussion/comment/118074407#Comment_118074407

No, the plaster will make the wall airtight, problem is the electrician will install the conduit before the plaster goes on. 😁

SC024 · 26-10-2021 8:41pm

https://www.boards.ie/discussion/comment/118074454#Comment_118074454

Won't the whole wall including the chase get plastered over? Seal the bottom / top of conduit & tape junction between sand & cement plaster & Concrete slabs instead of painting the chase? you might aswell paint the whole wall at that rate.

Biker1 · 26-10-2021 9:30pm

https://www.boards.ie/discussion/comment/118076986#Comment_118076986

The purpose of painting the chase is because the plaster, which is your airtight layer does not get around the back of the conduit. Every house I have tested has air leakage through the earth pin on all sockets where the chasing has not been sealed. Proof if there ever was that it is required.

Moggaman · 04-11-2021 11:03pm

Thanks everyone...blowerproof airtight paint is in the stockist near me.. ill use that

andyd12 · 06-08-2024 10:15pm

Regarding air tightness paint, is there any cheaper alternatives to the likes of blowerproof, soudal etc?....

Would the likes of this not suffice considering its waterproofing?

https://www.screwfix.ie/p/bostik-waterproofing-bituminous-paint-black-silk-5ltr/82914#product_additional_details_container

Airtightness Paint

Comments