Garage Loft insulated and Boiling!
- Thread starter The Count
- Start date
What have you insulated and how?
You should have an air gap between the insulation and roof, with vents in the soffits and ridges. Warm air should naturally rise up and vent out of the top, pulling fresh air in from the bottom.
But any loft room will be the warmest place in the house, whatever you do.
You should have an air gap between the insulation and roof, with vents in the soffits and ridges. Warm air should naturally rise up and vent out of the top, pulling fresh air in from the bottom.
But any loft room will be the warmest place in the house, whatever you do.
thanks Ivor - basically in the roof, they have put in insulation and then boards and then the loft floor itself has been chipboard and they have put in some kind of Polystyrene rigid insulation there too ? I was thinking some kind of air inlet if they remove a tile?
what sort of fan? Please don't say a desktop fan? LOL
I was guessing something like a
Loft Insulation via Tile Vent?
You have insulated it, so ventilating it is probably not the best thing to do. It may well be "hot" for a few days a year, and you may want the insulation to be working when the months are cooler.
So yes, moving air around, together with the adventitious ventilation from ground floor would be better, and that may be something similar to a desktop fan.
You should always have ventilation when the loft is converted, they are usually the giveaway that it's been converted.
Soffit vents at the bottom to let cold air in, tile or ridge vents at or near the top to let hot air out.
This also ensures that condensation doesn't accumulate, otherwise the structural timber is at risk of rotting.
You should have (in order, from outside to in)...
Tiles
Roofing membrane
Ventilated air gap
Insulation
Vapour membrane
Plasterboard
If any are missing then it's a botch job.
Soffit vents at the bottom to let cold air in, tile or ridge vents at or near the top to let hot air out.
This also ensures that condensation doesn't accumulate, otherwise the structural timber is at risk of rotting.
You should have (in order, from outside to in)...
Tiles
Roofing membrane
Ventilated air gap
Insulation
Vapour membrane
Plasterboard
If any are missing then it's a botch job.
That's ventilation of the roof structure, not the room within the roof.
However, it is possible to convert or insulate a loft without having to ventilate the structure and it is not an indication of a botched job.
I know, but I'm asking whether it was converted properly or not, as a starting point.
Also if there's insufficient insulation under the pitched roof then it's going to get hot.
Does it have windows? We used to leave our old loft room Velux windows permanently open one-click, which leaves them physically closed but sealed. They do have filters that need cleaning out though.
Also if there's insufficient insulation under the pitched roof then it's going to get hot.
Does it have windows? We used to leave our old loft room Velux windows permanently open one-click, which leaves them physically closed but sealed. They do have filters that need cleaning out though.
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