Any advice/experience of a roof lantern?

kmmr

I have a roof lantern in a mainly glass extension and it's not cold. I think modern glass is as insulating as brick these days. Architects have to calculate U values and there are minimums to be achieved to get building regulations approval.

Here is mine:

and it's fully open to the rest of the house, as shown below, with no worries on coldness



This was a new extension, and there is excellent underfloor insulation (and heating), wall and ceiling insulation + the high U value glass. It's probably better than the front room which is Victorian brick.

bwj292

blackshirtuk wrote: »

We are doing an extension 9m x 5m with flat roof. We went for 2 roof lanterns 2mx 1.2m. With 2 sets of 3.5m bifolds.

We are very happy with them, and yes self cleaning does actually work. Our lanterns were £800 each from a company in the midlands, 5 day turnaround and will design/make any size.

Hi guys, sorry I know this is an old thread but just wondering, we're currently looking for a roof lantern for our kitchen extension. £800 for a 2m by 1.2m lantern sounds reasonable. Which company in the Midlands was that?

Yorkie1

bwj292 wrote: »

Hi guys, sorry I know this is an old thread but just wondering, we're currently looking for a roof lantern for our kitchen extension. £800 for a 2m by 1.2m lantern sounds reasonable. Which company in the Midlands was that?

See post #6.

clockworks_2

Cupcake77 wrote: »

Clockworks did you also end up using this company?

Sorry for the late reply, I did end up using this company. Very pleased, Dave is a great guy. Pilkington self cleaning glass . Would recommend them all day long

ciscobloke1

Hi - Sorry to bother you all. I am looking at having an orangery build on my house with a roof lantern. New build dimensions will be 3800x3400 with a roof lantern size of about 2800x2400. 1 x long wall will be solid brick and block with good insulation, the opposite long wall will have 3 windows roughly 1600x665 and the front will have french doors 1600x2100 (ish) and a window either side 1200x450.

I plan to open this up into rest of house by removing the patio doors etc.

As I will be trying to project manage this myself and get tradesmen in for each stage, do you think CCS midlands roof lantern is a good choice for quality and budget?

Regards
Mike

andrewf75

Just found this thread and thought I'd try and ressurect it. I'm looking for a 3x2m lantern and the ones from CCS Midland on ebay seem very good value. Are they any good? My concern is obviously heat loss and possible rain noise, but they seem to have the high-tech glass.

arovbukay

Hi Andrew, did you get your 3x2? I'm looking at getting one too. Who did you go with?

How do you get one of these things onto the roof, I'm told a 3x2 can be upwards of 300kg! Crane?? Costs ? Any advice would be much appreciated. Thanks.

andrewf75

Hi,
Yes. The extension is still being finished but the lantern is in and looks fantastic. I spent many, many hours researching lanterns and we went with Lumina design in the end. They do a slimline one called the Atlas range (I think these are supplied by others as well) which has much thinner bars than others, which makes a really big difference to how it looks. Its also the most efficient thermally overall u value of 1.1 so really pleased. Great company as well, really helpful. It comes in pieces so the builders put it together up on the roof, no need for a crane. Ours cost £2200 plus 90 delivery. Our architect/structural engineer specified steel beams to support it - but it may be overkill as I'm not sure it really weighs that much, never actually found out!

DirectDebacle

Our architect/structural engineer specified steel beams to support it - but
it may be overkill as I'm not sure it really weighs that much, never actually
found out!

As a guide 1 sq.m. glass weighs approx. 2.5kg per mm of thickness.

A 4mm D/G unit will weigh approx. 22kg per sq. m. when you add weight of sealant and spacers. Hefty stuff. Then add on the weight of the (lantern) frame.

blackshirtuk

Our architect was a little nervous about the weight too!!! He specified we should use 3 8x2's bolted together, the building inspector thought that 2 would have been enough but was happy to err on the side of caution.