Insulation under Polypipe Overlay Plus - worthwhile?
Discussion
Hi All,
We're currently going through a renovation/extension, and installing Polypipe Overlay Plus over the whole downstairs for wet UFH as the downstairs is suspended floor throughout. These are 18mm panels of basically EPS foam with channels in them for the water pipes. We will be fitting a engineered wooden floor over the top.
I'm looking in to the possibility of boosting the insulation by fitting additional EPS under the overlay. We haven't got the time or budget to pull up the floorboards to fit insulation under the suspended floor or replace with a concrete slab.
I rang polypipe who seemed pretty lukewarm about the idea but I can't see why it's a bad one, may as well maximise the insulation while I can? Anyone done anything similar?
EDIT: Also any advice on controls much appreciated. We have a Nest which has been excellent at controlling the standard heating via Opentherm but having 4 Nests scattered about seems a bit much...
We're currently going through a renovation/extension, and installing Polypipe Overlay Plus over the whole downstairs for wet UFH as the downstairs is suspended floor throughout. These are 18mm panels of basically EPS foam with channels in them for the water pipes. We will be fitting a engineered wooden floor over the top.
I'm looking in to the possibility of boosting the insulation by fitting additional EPS under the overlay. We haven't got the time or budget to pull up the floorboards to fit insulation under the suspended floor or replace with a concrete slab.
I rang polypipe who seemed pretty lukewarm about the idea but I can't see why it's a bad one, may as well maximise the insulation while I can? Anyone done anything similar?
EDIT: Also any advice on controls much appreciated. We have a Nest which has been excellent at controlling the standard heating via Opentherm but having 4 Nests scattered about seems a bit much...
Edited by shalmaneser on Thursday 10th October 10:34
The problem is movement which you'll get with 2 layers of insulation
The overlay boards need to be fixed down to the floor surface, either mechanical or tile adhesive
The system factors in the downward heat loss at about 10% but the overall output more than copes with that
It's a retro fit low profile system
Fixed it down to concrete floor in mine and it works a treat
Can't help on stats as mine is RF heatmiser
The overlay boards need to be fixed down to the floor surface, either mechanical or tile adhesive
The system factors in the downward heat loss at about 10% but the overall output more than copes with that
It's a retro fit low profile system
Fixed it down to concrete floor in mine and it works a treat
Can't help on stats as mine is RF heatmiser
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