Also, foil-backed insulation [0]. I finally figured out they insulated the hell out of my house with this stuff. Works amazingly on heating and cooling bills,

Also, foil-backed insulation [0]. I finally figured out they insulated the hell out of my house with this stuff. Works amazingly on heating and cooling bills, but it's a pretty solid wall to radio waves. [0] https://www.ibhs.co.uk/foil-backed-mineral-wool-50mm-thick-x-1200mm-x-600mm.html https://www.ibhs.co.uk/foil-backed-mineral-wool-50mm-thick-x...