Dormer bungalow dwellers heat problems?

Flippyfloppy

Hi all,

Just wondering if any other dormer bungalow dwellers are (not) looking forward to a summer of extreme heat?


We have an attic conversion in our semi detached bungalow with a (blasted) hip roof.

We had one big long room, which was always very hot in summer, and recently converted into two rooms, the master bedroom with a big up to the rafters dormer window. The master bedroom is not a problem anymore with excess heat.

The other bedroom, which just has a velux is a nightmare in summer. Our baby sleeps in that room, the room thermometer can reach 36 degrees plus and doesn't cool down at night. We open the windows upstairs but the ceiling of the room itself is hot, I think it's the roof tiles, soaking up heat in the day time because they are hot too.

When we were getting work done on our house we got thick foil backed plaster board on that ceiling but it hasn't helped.

As well, across the hall our attic space runs along the side of the hip with the smallest height. A fair amount of heat comes from here too, the rafters here are not insulated at all.

Does anyone have any experience/advice for us? We have to use an air conditioner on a timer that comes on for an hour at a time...not really ideal as so expensive to run.

Thank you for reading

signed

Summer Dreader

BryanF

So you 'converted' the space, but just didn't insulate/ air-tighten/ventilate/ detail it.
I've found a foot of cellulose work well to lesson attic temps in summer. Take down the all the ceilings, fir out the joists, install vent cards to achieve ventilation, on inside t&g siliconed osb, pump in 300mm depth cellulose. Careful similar treatment of knee high walls required and tedious air-tightness detailing to ceiling/wall junction at ground floor

Flippyfloppy

BryanF wrote: »

So you 'converted' the space, but just didn't insulate/ air-tighten/ventilate/ detail it.
I've found a foot of cellulose work well to lesson attic temps in summer. Take down the all the ceilings, fir out the joists, install vent cards to achieve ventilation, on inside t&g siliconed osb, pump in 300mm depth cellulose. Careful similar treatment of knee high walls required and tedious air-tightness detailing to ceiling/wall junction at ground floor

Great thanks for all the information I really appreciate it. Does the same apply for the attic storage space or would treating the room alone suffice?

BryanF

Flippyfloppy wrote: »

Great thanks for all the information I really appreciate it. Does the same apply for the attic storage space or would treating the room alone suffice?

You insulate the heated envelope.