Flat roof ventilation problem

[NormalGuy]

Hi Everyone,

I have done a garage conversion with Flat roof. Before the Building Reg Certificate is done the builder has ran away. I am trying to get the certificate on my own. I have been raised a question of what cross roof ventilation is used.

Could you please help me to find what if any cross roof ventilation is done in my Flat roof. I don't see any facscia vents so or Mushroom vents on top. So the other thing that with my non existent knowledge about this is Warm Deck. How do I find whether or not my Flat roof is constructed as Warm Deck construction.
Any suggestions or help very welcome.
Many Thanks in advance.

 

[freddiemercurystwin]

Has any work been done to the roof yet?

 

[NormalGuy]

The work on the Garage is fully complete.

 

[NormalGuy]

There was some Electrical work pending in the other part of the house. And had to wait for Part P certificate for the whole work before Regs could be done. In between the builder has done a runner. So as far as the Garage conversion which has the flat roof all work is complete.

 

[freddiemercurystwin]

Do you know what the existing construction was? What has been done to the roof? Got some photos showing before and after inside and out? Are Building Control involved?

 

[^woody^]

You don't need to ventilate garage conversion roofs, but they need to be fully insulated with no gaps.