Porch loft access and Porch roof insulation design.

[Marvin]

Does a porch loft have to have an access panel? It only has a foot print of 5m2

 

 

 

Which are the best designs when insulating a porch with a pitched roof, taking into consideration the porch structure will become part of the building thermal envelope?   At this stage the design can be altered to any design. 

 

 

Edited May 17, 2023 by Marvin
minor change.

[kandgmitchell]

No access panel required. Since this presumably has a flat ceiling then 300mm of fibreglass quilt? 

 

It sounds like it's not going to be a "porch" if it's going to be part of the thermal envelope so what does the building reg application say?

[Marvin]

Hi @kandgmitchell  and thanks

 

Yes 300mm fluffy - and so vented. 

 

Was considering if warm roof or cold roof was easier. Either way  U-value down to 0.18.