Location of rooflights in flat room over kitchen / dining area...

[theflyingpig]

Hi all,

I wondered if anyone had any insight as to the best location for rooflights in a flat roof..... We want to maximise light into our proposed kitchen /dining area...
I don't much like roof lanterns, so am thinking perhaps 4 rooflights .....

Any ideas?

 

[theflyingpig]

Oops, picture upside down!

 

[freddiemercurystwin]

I'd have done three above the kitchen table. Hope you're heating system will be up to it.

 

[Londoner2]

I would just have 1 reduce the risk of leaks in a few years time.

 

[theflyingpig]

I'd have done three above the kitchen table. Hope you're heating system will be up to it.

I'm thinking to do up insulated upstands with triple glazed glazing... Should be OK!

 

[Dereekoo]

Of course it also depends on the size of your rooflights and the wall windows number/size

 

[theflyingpig]

I've rethought this and am now keen on a roof lantern! Still got same question about sizing though...
How big does it need to be?

 

[Deleted member 281264]

I find roof lanterns ugly

What is the orientaton of the room? If it get's direct sun it will be like a green house with all that glass from the solar gains

 

[Notch7]

Hi all,

I wondered if anyone had any insight as to the best location for rooflights in a flat roof..... We want to maximise light into our proposed kitchen /dining area...
I don't much like roof lanterns, so am thinking perhaps 4 rooflights .....

Any ideas?

Bear in mind the upstands to the roof lights will be around 350 to 400mm if a warm roof, so a single lantern might look better.

 

[noseall]

Bear in mind the upstands to the roof lights will be around 350 to 400mm

Yeah, and look a lot taller from within....

lan4.jpg

• noseall
• 27 Mar 2023

lan3.jpg

• noseall
• 27 Mar 2023

lan2.jpg

• noseall
• 27 Mar 2023

lan1.jpg

• noseall
• 27 Mar 2023

Those eagle eyed amongst you will have noticed I used 50mm timbers for the upstand uprights so that I could add another 25mm to face of the internal uprights (as well as stuff between the uprights) so as to help with the thermal resistance.

 

[robinbanks]

A trade that knows how to insulate! Can you go and educate the other 2,689,999 buggers please?!

 

[noseall]

A trade that knows how to insulate! Can you go and educate the other 2,689,999 buggers please?!

I did that off my own back. The architects' drawings were quite vague in detail. We managed to cram in 50mm between uprights and another 25mm across. Having said that, it's only the top 200 or 300mm that is vulnerable and that in turn is adjacent to the heat losing lantern.

Every little help I guess. We foil tape EVERYTHING too.

 

[robinbanks]

adjacent to the heat losing lantern.

But hey, the client wants what the client wants, so sometimes we have to play the "extra here to compensate for that problem there" game..

The architects' drawings were quite vague in detail

If they were BR plans then that's poor service from them I'd say; this client the client lucked out having a savvy builder.

What did you deck the roof with?

 

[noseall]

What did you deck the roof with?

125mm (pre-June 2021 reg's applied). I did it in two separate layers so that I could bond the joints.

 

[robinbanks]

Oh, I meant on top of the insulation; I presume it was rubber roofed?