Bungalow Loft Insulation Advice

[[Darkend]Viper]

Hi all,

Hoping you can help me out a bit here, I'm after insulating my loft for better heat retention. Property is a detached bungalow built in the 70s, single brick wall with timber inner and no cavity insulation.

I've already added more insulation to the loft which has made a difference, but the gable ends are not brick to the top, the brick wall round the house is 8/9 feet tall all the way round, and the gable ends are timber frame, this is clad with plastic on the outside. The whole roof was retiled in 2006/7ish and has plenty of airflow so am not too worried about damp.

What I'd like to know is the best way to insulate the gable ends, am I ok just stapling the loft insulation to the timber or is there a better way to do it? The frame of the gable ends is 3"x2".

 

[Nightglow]

I presume it's just the bare frame timber frame inside, & not cover with ply.
The way I've tackled this in the past is build a new end frame out of 3"x2" matching the original frame spacing & fixed to it, this then gives you the capacity for 150mm of insulation, & cover with 12mm ply, 9mm might be ok or too flexible depends on the3"x2" spacing.

 

[Derek W]

There's not really any need to do that. You've got what is called a cold roof construction with your insulation across your ground floor ceiling ties. Insulating the gable walls won't have too much of an effect really.and if it does make the roof space a bit warmer the heat will just go out the top of the roof .

 

[Cosmic182]

As said above really^ But if you're determined and I've understood you right, why not just put kingspan insulation between the stoothing walls in the gable? You could use 75mm then staple some of the foil quilt insulation over. Much less messing around than building a sub frame. and tbh will work out no more expensive than timber. Be more sufficient too. They didnt insultale back then, hence why a lot have it blown in now, but tbh that misses a lot of spots. If you want to elliminate it, best bet is to insulate between your roof spars with kingspan or the equivalent as well so heat loss can't go through the roof.