Just wondering if anyone knows how the U value of PB compares with MgO board?
Let's say:
9.5mm PB vs 9mm MgO board
I'm really limited for space on the top of a window reveal and want to know if using MgO would make any difference to the insulation level.
What do you think?
Thanks
Let's say:
9.5mm PB vs 9mm MgO board
I'm really limited for space on the top of a window reveal and want to know if using MgO would make any difference to the insulation level.
What do you think?
Thanks