Opening loft hatch - does it keep house cooler?

[Lindfield by the Pond]

Losing the battle with Mrs Lbtp to try this rumour. Does anyone else try this? Does it work? It's too hucking fot to sleep. Anything to cool house down at night.

 

[Moshe Gariani]

Only works with the front door open too. Definitely worth a go.

 

[Triggaaar]

Generally your house will be insulated, which will keep the house cool when it's hot. Your loft will probably be like an oven. Hot air rises, but any air going up there will push warm air down.

I don't imagine there's much to benefit from it.

Not sure it's worth a battle though, if she wants it open, she can open it.

 

[Pevenseagull]

If you've got a velux in the roof (and open it) then yes, otherwise probably not.

 

[beorhthelm]

Generally your house will be insulated, which will keep the house cool when it's hot. Your loft will probably be like an oven. Hot air rises, but any air going up there will push warm air down.

older houses (fairly recent unless they changed buliding regs) will usually only have insulation between ceiling and attic floor. easier and less insulation needed than fitting inside the pitch. so the attic will be cool. hot air rising should escape through ventilation in the eves, drawing in cooler night air. in the day however the beating sun will make the attic baking unless there is decent insulation in the pitch.

 

[TomandJerry]

Try keeping the toilet seat up, that works

 

[Da Man Clay]

Seems to work in my place

 

[PeterOut]

If you can create air flow through the house, you will feel cooler (moving air aids evaporation on the skin, cools you down).
To get air flow, you need both an inlet and outlet vent.

If a downstairs window is open, and there is an uninterrupted path to an upstairs window, you will get air movement between those two points, and it will feel cooler if you stand in that path.
A loft hatch can substitute for a window as an exit vent, if the air can flow out through the gaps between the roof tiles (as said above, it depends on what insulation you have in the roof, and where it is fitted).

Obviously, open windows at this time of year can be a security risk, so consider that too.

 

[portlock seagull]

I sat in the garden at 3am, it was blissfully cool.

I must be the only person in the entire country who has caught a cold, feel lousy with that punched eye sockets feeling just to top up my lack of sleep due to the heat!

 

[Jesus Gul]

4.45 sat in't garden with a cup of splosh. Lovely

 

[Mo Gosfield]

Great time of morning....still.....dawn chorus....nature at its best.

 

[Triggaaar]

older houses (fairly recent unless they changed buliding regs) will usually only have insulation between ceiling and attic floor. easier and less insulation needed than fitting inside the pitch.

Yes, that's what I'd expect.

so the attic will be cool. hot air rising should escape through ventilation in the eves, drawing in cooler night air. in the day however the beating sun will make the attic baking unless there is decent insulation in the pitch.

What ventilation in the eves? I think most old houses don't have any. I didn't know it cooled down quickly at night.

 

[Dr. Notthenineo'clocknews]

Great time of morning....still.....dawn chorus....nature at its best.

Don't, a bloody wood pigeon was making that "luk-a-du-koo" noise for about the first hour of day light, fùckin thing

 

[knocky1]

Don't, a bloody wood pigeon was making that "luk-a-du-koo" noise for about the first hour of day light, fùckin thing

That wood pigpen sound always makes me think of some ****** Man Utd fan going "Un...i....tid, in.....I.....tid" ad nauseum.

 

[Norman Potting]

Great time of morning....still.....dawn chorus....nature at its best.

B***dy dawn chorus waking me up, don't they have jobs those birds. And as for it being nearly daylight not long after 0500, Summer, bah humbug

 

[Whoislloydy]

Wouldn't know, that's where the monsters live.

 

[boik]

Great time of morning....still.....dawn chorus....nature at its best.

Normally I would agree, but the rooks outside my window at 4:00 the last few days have made me revise my opinion. Noisy so and sos!

 

[Wrong-Direction]

I'm working in a roof, the hatch is open and the baking hot air is being drawn down into the house

Sent from my SM-A310F using Tapatalk

 

[narly101]

Works in my place

 

[LamieRobertson]

I'm working in a roof, the hatch is open and the baking hot air is being drawn down into the house

Sent from my SM-A310F using Tapatalk

I'd have a word with your assistant and send him up there while you rearrange the tool box in the shade