Will i get condensation issues.

[JamesAsus]

Had a garage conversion done 3 months ago, part of the ceiling has a roof directly above, back half is a bedroom.

The room has been converted into a lounge area.

In the roof space, rockwoll was put into it, a good 200mm of it, it was pushed into all the edges including to the very front of the roof where it is lowest.

I read something about insulation in eaves causing condensation and moisture issues, is this a concern? That part of the roof doesent have any vents above it.

The roof goes all the way across above another room aswell but that section of roof appears to have vents on it.

It was all done to building control but tbh the officer appeared to be clueless.

 

[Wayners]

This may help you understand

 

[JamesAsus]

Should building control not have flagged this up?

Anyway is there a way i can do anything via the side wall that the roof is on, i.e drill a hole into that wall and fit a vent, rather than ripping all the fresh plasterboard back down and fitting a roof vent that would be seen.

It is a cavity wall so brick and breezeblock.

 

[catlad]

Can't see you needing much in the way of vents, I'm guessing you are not heating your garage much.
They may have used over fascia vents.

 

[JamesAsus]

Can't see you needing much in the way of vents, I'm guessing you are not heating your garage much.
They may have used over fascia vents.

Its a garage conversion so its now a habitle room.

 

[JamesAsus]

The roof is easily accesible as its only single storey on that section, is there something easy i can do on the outside to fit a vent rather than cutting the freshly plastered ceiling away?

 

[catlad]

plaster and vents don't normally go together!

 

[catlad]

Ventilated ridge system could be an option.

 

[JamesAsus]

Ventilated ridge system could be an option.

there is no ridge as the roof butts up against the upstairs brick wall.

 

[^woody^]

Don't worry about it for such a small roof area and in context of the use of room below. The condensation risk is very low

 

[JamesAsus]

Don't worry about it for such a small roof area and in context of the use of room below. The condensation risk is very low

So this is what the area looks like, its all been plastered and everything now so would have to rip it all down to sort if needed.

Its at the front half of the room, total area is probably 2.5 x 2 metres i imagine. The back half of the room has a bedroom above it.

The soffit board is mostly covered by the new window so unable to fit soffit vents, i know some insulation was also put in the eaves but there is no vents there or anything.

The adjoing roof space has vents from when the house was built 30 years ago, HOWEVER as you can see it has a wall so the vents wont be doing anything for this section.

 

[^woody^]

Same answer

 

[JamesAsus]

Same answer

Is there reasoning behind it? Just might help put my mind at ease if i can justify not ripping it all down and fitting vents?

 

[^woody^]

Not every roof void gets condensation issues. Most have enough draught to prevent the heat build up that cause it, and to ventilate it.

There are whole housing estates and millions of roof voids in the UK which are unventilated by design or by default, and they have no issues.

That small void has a very low risk.

And if it helps, I'm sitting under one right now.

 

[JamesAsus]

Not every roof void gets condensation issues. Most have enough draught to prevent the heat build up that cause it, and to ventilate it.

There are whole housing estates and millions of roof voids in the UK which are unventilated by design or by default, and they have no issues.

That small void has a very low risk.

And if it helps, I'm sitting under one right now.

Okay mate thank you. Im stressing a bit because theres not even an airbrick below the new dwarf cavity wall thats been constructed either (again only 2 metres wide with a window above) yet other garage conversions ive seen appear to have them.

The council building officer seemed a bit dumb tbh but it has been 'signed off', i just dont want to run into major issues in the future with damp/rot.