Dot n Dab - Correct method

[Nickwithdraughtyhouse]

Hi everyone, stumbled across this forum whilst searching for reasons why we have a massive draught coming in down the back of the PB and into the room from the skirting. On a windy day you can feel the draught in the middle of the room, and the walls are stone cold freezing.

I gather there could be any amount of reasons, and can be quite common on new builds and extensions. A lot of blame seems to be on the dot n dab method.

My question is quite simple really, as I can't get a straight answer from our builders, (who have now washed their hands of us), and is as follows...

Are you meant to 'seal' the top and bottom of the walls with a line of dab, to prevent cold air rushing in? Or are putting a few dabs around the wall the accepted method?


I understand there are other possible causes: ie bad blockwork, poor insulation, RSJ etc etc, but just trying to get all my ducks in a row.

Thanks so much for reading!
Nick

 

[Tinytom]

Should be solid perimeters, are you new build or extension? Are cavity closers in place? Windows sealed in properly? Air bricks ducted?

 

[Retired Spread]

It's a common problem amongst the clueless chancers cutting corners with dot & dab......should be at least 1 bag for two 8x4 sheets and as Tinytom has said solid perimeters

 

[John j]

Some draught if its reaching middle of room . If skirts and carpets down

 

[Deleted member 32554]

Should be sealed around any openings as well , switches , sockets etc

 

[Ritch]

It's a common problem amongst the clueless chancers cutting corners with dot & dab......should be at least 1 bag for two 8x4 sheets and as Tinytom has said solid perimeters

My mates a dryline contractor and pretty sure his spec was solid perimeter as normal . And the dab 25mm tap back to 12.5mm so with 12.5 board 25mm total lol

 

[Djr]

It's a common problem amongst the clueless chancers cutting corners with dot & dab......should be at least 1 bag for two 8x4 sheets and as Tinytom has said solid perimeters

Definitely

 

[Vincey]

And don’t forget the builder is the one at fault he should of had this sorted

 

[Cockney]

Hi everyone, stumbled across this forum whilst searching for reasons why we have a massive draught coming in down the back of the PB and into the room from the skirting. On a windy day you can feel the draught in the middle of the room, and the walls are stone cold freezing.

I gather there could be any amount of reasons, and can be quite common on new builds and extensions. A lot of blame seems to be on the dot n dab method.

My question is quite simple really, as I can't get a straight answer from our builders, (who have now washed their hands of us), and is as follows...

Are you meant to 'seal' the top and bottom of the walls with a line of dab, to prevent cold air rushing in? Or are putting a few dabs around the wall the accepted method?


I understand there are other possible causes: ie bad blockwork, poor insulation, RSJ etc etc, but just trying to get all my ducks in a row.

Thanks so much for reading!
Nick

Is this a new build or extension?

 

[Deleted member 46546]

Hi everyone, stumbled across this forum whilst searching for reasons why we have a massive draught coming in down the back of the PB and into the room from the skirting. On a windy day you can feel the draught in the middle of the room, and the walls are stone cold freezing.

I gather there could be any amount of reasons, and can be quite common on new builds and extensions. A lot of blame seems to be on the dot n dab method.

My question is quite simple really, as I can't get a straight answer from our builders, (who have now washed their hands of us), and is as follows...

Are you meant to 'seal' the top and bottom of the walls with a line of dab, to prevent cold air rushing in? Or are putting a few dabs around m8the wall the accepted method?


I understand there are other possible causes: ie bad blockwork, poor insulation, RSJ etc etc, but just trying to get all my ducks in a row.

Thanks so much for reading!
Nick

Solid perimeter or not you shouldn't be getting drafts. Builders cocked something up

 

[Deleted member 32554]

Hi everyone, stumbled across this forum whilst searching for reasons why we have a massive draught coming in down the back of the PB and into the room from the skirting. On a windy day you can feel the draught in the middle of the room, and the walls are stone cold freezing.

I gather there could be any amount of reasons, and can be quite common on new builds and extensions. A lot of blame seems to be on the dot n dab method.

My question is quite simple really, as I can't get a straight answer from our builders, (who have now washed their hands of us), and is as follows...

Are you meant to 'seal' the top and bottom of the walls with a line of dab, to prevent cold air rushing in? Or are putting a few dabs around the wall the accepted method?


I understand there are other possible causes: ie bad blockwork, poor insulation, RSJ etc etc, but just trying to get all my ducks in a row.

Thanks so much for reading!
Nick

Do you have a cavity under floorboards , another source of airflow into room from under skirting boards