Celotex insulation

[plumberman]

Just some casual observations about this material ( Dense foam insulation backed both sides with foil - building material to provide insulation in loft conversion etc.)

Just lifted off insulation ( over crown board) and quite remarkable how warm top of crown board is, so must be doing its job.

Reasonable amount of condensation below, and a little mouldy, so used the opportunity to turn over celotex and wipe down dampness with kitchen towel. They are all on OMF, so I'm not too perturbed by condensation.

One half of me thinks great, they are retaining heat, the other half of me just wonders whether this could be fooling the bees into believing that spring is closer than it is and therefore to be even more vigilant with respect to making sure stores are sufficient.

Opinions?

 

[BKF Admin]

Do you have an OMF on the WBC Plumber?

 

[hedgerow pete]

i use alot of this type of insulation beacause it works so well, if your crown broad does have a vent,feeder hole in the middle of it do as i do and cut a small hole in the insulation sheet to vent out the air

 

[plumberman]

Do you have an OMF on the WBC Plumber?

Yes - OMF on the WBC

 

[victor meldrew]

I find this type of insulation very efficient, I also use it down the back of my radiators, the side facing the radiator is hot whilst the side facing the wall plus the wallitself is cold to the touch !!.

John Wilkinson

 

[RoofTops]

I built a top bar hive out of it a couple of years ago. Unfortunately, I didn't use waterproof glue but the concept was sound I think - even if the hive wasn't after a few months of rain.

 

[Hebeegeebee]

I've used a few sheets of corrugated cardboard between crown board and celotex with the idea that it will absorb any moisture and allow some to escape at the sides as well.

 

[hedgerow pete]

I like the idea of the card board hebegebe