Joist Headpiece for Timber Decking Pads
The adjustable supports are placed 600mm apart and are adjusted to accommodate the fall in the roof deck, and the joist bearers are simply slotted between the joist holders, placed at 40mm, 60mm or 90mm apart. For further flexibility users can install the TD Mobile Head adjustable height support pad.
The timber joists are suspended off the deck, meaning none of the wood is exposed to standing water and the joists are not standing directly on the waterproofing membrane which might lead to damage. There is no need to mechanically fix the supports into the membrane; this is a completely free standing system.
There is no risk of them moving off the head piece and no bonding or fixings onto the support itself are required.