I have looked through many posts but still have the question as to whether the Juliana is worth the extra money over the HFGH? Juliana looks to have a 10 mm double poly vs 4mm single poly?
Well I think The HF is Double wall, not single wall.
It looks like the Juliana door might be sealed better
Personaly I like the Higher Sidewalls of the HF Greenhouse.
But I really do not think the two Greenhouses are in the same neighborhood at all. With the Juliannas costing 3-5 times as much as the HF Greenhouses. The thicker Poly should help on keeping heat in, but I do not know by how much
I have a HFGH and Jimmydo2 is correct, it has 4mm twinwall polycarbonate.
I see from a look at the Juliana site that their basic greenhouses are also 4mm twin-wall, upgrading through the different series to 10mm twin-wall in the premium series.
There must be a chart somewhere to refer to ... I wonder which would have more insulating value - a thicker twin-wall, or perhaps a triple-wall. And the relative cost/effectiveness of various thicknesses of twin, triple, quad wall, vs. solar pool cover, foam/styrofoam insulation panels and so on.
I'll be looking for a post from nathanhurst on this one.