Editors comments yes you can use the new foam that is available to stabilize support posts.
Foam instead of concrete for deck footings.
Then dump concrete through the tube into the bottom of the hole.
Check out our deck footing frost map to help you understand how deep your footings will need to be excavated.
Concrete is cheaper and pretty fool proof vs.
No hauling cement bags no mixing no messy pouring no waiting for cement footings to dry.
Is this foam replacing concrete.
The foam like i said in the post there were possible issues with maybe the weather or the depth of the hole etc but if the whole point is to beat concrete i still say this failed in that respect.
The idea is simple.
Sika postfix is a two component pre proportioned polyurethane resin.
Has anybody used post setting foam in place of concrete for post footers.
But make sure the post is treated for ground contact and that you follow these principles for footings.
Effectively replaces two 50 lb.
For more information check out this video.
And this is why the building codes do not specify high density foam as an alternative to concrete as either a footing beneath a column or to backfill the space between the column and the surrounding undisturbed native soils.
Bags of concrete mix.
Do this by nailing the sides of the tube to the center of a tic tac toe grid of 2x4s at the top of the hole.
Instead of digging footing holes than hauling mixing and pouring hundreds of pounds of concrete you simply use a pad.
It s hard to imagine an easier deck footing option than deck footing pads.
It is mixed in the bag to produce expanding foam for supporting and backfilling fence mail box gate and signage posts.
Can be used with wood steel and pvc posts.
We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads.
Up from the bottom of the footing.
When you pour concrete footings hold the cardboard concrete form tube about 12 in.