Quote:
Originally Posted by len  I know that its expensive,but would anyone consider overlaying the chipboard with 'Weddiboard' or similar...insulation and a cementious suface to key to, all in one. |
Probably not necessary if you have used 22mm ply with 3in of insulation underneath, as long as you use an appropriate adhesive like Ardex 7001 or BAL equivalent.
Grumpy