conservatory floor

[Aqua Tiling]

just looked at a small floor in a conserventry, and it has chipboard floor, whats best to board it with, ply or backer board

[Dave]

Is it onto Joists.?

[Aqua Tiling]

yes, there is no bounce in the floor at all

[Stewart]

I would use 6 mm hardie or no more ply and fix with SPF and screw exery 200 mm.

[pjc]

are you sure its not a floating floor ?

[terry the tiler]

6mm hardy all day long ! check to see if theres any screws in the chipboard first ! could be a floater .

[Aqua Tiling]

the chipboard was screwed dwn, does that matter weather its floating or not if i use ply,

[Mike]

if it's screwed down then it's not floating so as the above replies say, 6mm hardie boards laid with spf addy and screwed every 2/300mm

[pjc]

i didnt think spf was any good for chipboard

[tilerjason]

6mm hardy too ,

[Aqua Tiling]

what you have done if it was a floating floor

[pjc]

walk quick

[andy allen]

what you have done if it was a floating floor

run a mile

[Aqua Tiling]

whats so bad with a floating floor then, all my work is new extenstions (screed), as im starting out, im still learning bout things.

[andy allen]

floating floors are just chip board placed onto insulation with know fixings, they bounce alot and are a recipe for disaster, i know some guys on here have tiled them by overboarding with 18mm ply and backer boards, still risky i.m.o.

[Minesacarling]

To be honest I've always just gone over with ply but never knew any different. Never had any come backs either. Tiled me dads house like that about 3 year ago and there still fixed and with no cracked grout