airtightness/insulation and consumer unit

[irishhouse]

New build in 2022. Consumer unit is in a single storey utility room(off kitchen) that has a pitched roof. This is connected to the 2storey house. From the consumer unit the wires run up in trunking into the ceiling of the utility. A section of the ceiling board was just cut out and obviously a noticeable breeze in coming down(the hole in ceiling board)from the venting which is in the soffit vents.

 

1)Is this an acceptable way to bring wires by just cutting a rectangular hole and not attempting some form of airtightness/insulation to minimise the breeze coming down the hole in ceiling board? 

2)can rockwool type insulation be placed to fill the hole and reduce the cold/breeze coming in?

3)Can rockwool be put throughout the trunking ?

3)any other comments/observations worth noting?

 

See attached pictures 

Edited March 7, 2023 by irishhouse
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[Nickfromwales]

6 minutes ago, irishhouse said:

New build in 2022. Consumer unit is in a single storey utility room(off kitchen) that has a pitched roof. This is connected to the 2storey house. From the consumer unit the wires run up in trunking into the ceiling of the utility. A section of the ceiling board was just cut out and obviously a noticeable breeze in coming down(the hole in ceiling board)from the venting which is in the soffit vents.

 

1)Is this an acceptable way to bring wires by just cutting a rectangular hole and not attempting some form of airtightness/insulation to minimise the breeze coming down the hole in ceiling board? 

2)can rockwool type insulation be placed to fill the hole and reduce the cold/breeze coming in?

3)Can rockwool be put throughout the trunking ?

3)any other comments/observations worth noting?

 

See attached pictures 

 I wouldn't get too upset, as most trades know little or nothing about airtightness, in fairness. 

To solve this, all you need is a squirt of Illbruck 330 foam and it's job done   10 minute fix.