Heating Regs

[pilsbury]

Change the rad for a bigger one, double panel.

 

[mjtefc9]

Is this a detached/semidetached? How many outside walls has the room above the garage got? My guess is that it is a semi, that the garage wall is a boundary so the bedroom above has 3 outside walls and an unheated space below. the heating system won't have been balanced properly and the thermostat (as already said) is in the wrong place.

Hi sorry, just seen this.

This is above the main front bedroom which is cold, the house is a detached.
We have a heating engineer coming out to check the rads next week. But the house builders came out last week and said they could feel cold and a draft almost from the skirting ?

 

[oldbutnotdead]

Ha. The void between bedroom floor and garage ceiling should be stuffed with loft amounts of insulation (300mm or so) and pretty much sealed (you don't want exhaust fumes in your bedroom do you).
Also the (cavity) outside wall of the garage may not have been insulated, thus allowing free air flow in that cavity & reducing effectiveness of the upstairs insulation

 

[JohnD]

Ha. The void between bedroom floor and garage ceiling should be stuffed with loft amounts of insulation (300mm or so) and pretty much sealed (you don't want exhaust fumes in your bedroom do you).

I'd expect the void to be the depth of ordinary floor joists, about 180mm which will be quite sufficient.

Because warm air goes up, not down, heat loss through floors is not as great as through ceilings, provided you stuff well to block draughts, especially round the edges.

I hope there is a plaster ceiling as a fire barrier.

You can seal the edges, joints, and around gaps for pipes and cables, with pink fire foam. This will block draughts, fumes and also the passage of smoke and flame. You can also inject it around the joists where they are built into the wall.

Internal walls are often unskilfully built and may have gaps and missing mortar. Builders assume this shoddy work will be hidden by the plasterers, but it still exists in unplastered surfaces such as under the floor and in the loft.

 

[JohnD]

 

[mjtefc9]

View attachment 161233

The bedroom I am talking about is above the living room, and as its a new-build no insulation in the void

But the En-suite which is cold is above the garage an has insulation to spec.. It may be the walls that need reinsulating

 

[JohnD]

if you get the chance, it's worth stuffing mineral wool at least round the edges of the room where draughts get in, usually from gappy brickwork. Really stuff the outer gap tightly.

The builders are likely to have rolled it down between the joists but not paid attention to the gaps and draughts.

As it's an en-suite there are probably holes for the pipes, and the plumbing duct in the corner will be a source of draughts unless you stuff it. You can get intumescent fire cushions to stuff in ducts where they pass between floors.

 

[mjtefc9]

Thank John

 

[JohnD]

have added more text to my posts