Is foam good for setting fence posts?

Expanding foam post mix sets hard enough to leave the post unsupported in just a few minutes. It can be fully cured in a quarter of an hour. It’s also much less dependent on temperature, which is different than concrete that should never be made if there’s a risk of freezing. Expanding foam does not.

Can you use foam to set deck posts?

Has anybody used post setting foam in place of concrete for post footers? Yes, you can use the new foam that is available to stabilize support posts. But make sure the post is treated for ground contact and that you follow these principles for footings.

Should you concrete in fence posts?

Concrete is the most secure material for setting fence posts, especially if you have sandy soil. Using premixed concrete rather than dry concrete will ensure ultimate security. While concrete is sturdy, it lacks the drainage of gravel and can trap moisture, ultimately leading to rot.

Is it better to drive fence post or concrete?

Conclusion. If you want to install a fence that will last a long time, with less labor and time, you will want to drive the post and not concrete them in place. In all climates and soil condition except rolling sand a properly driven post will be easier to install, stronger, and last longer than a concreted post.

How long does secure set foam last?

HOW LONG WILL SECURE SET LAST IN THE GROUND? Secure Set is a green product and environmentally safe. As an inert plastic foam, Secure Set has an expected life of more than 40 years.

Is Sika expanding foam waterproof?

Sika Boom® High Yield expanding foam is used for fixing and filling joints and gaps as well as insulating against noise and draughts. It is fast curing and easy to cut, shape and sand after it has set….

What is the best concrete mix for fence posts?

For a small to mid sized job I recommend going with premixed. The best concrete mix for fence posts I’ve found is Quikrete Fast Setting Concrete Mix in a 50 lb bag. It’s 4000 psi, easy to work with, sets up fast, and doesn’t need to be mixed. Just pour it in the hole and soak with water.

How many bags of concrete do I need for a 4×4 post?

How Much Concrete For A 4×4 Fence Post?

How deep should a post be driven?

In general, holes should be at least 3 feet deep for posts that extend 8 feet or more above ground level. Posts that extend 6 feet above ground level should have holes at least 2 1/2 feet deep.

How deep do you drive fence posts?

The general rule of thumb when setting a post is that the depth of the post’s hole needs to be one-third to one-half of the actual above-ground height of the post. So, a six-foot-high finished post ideally needs to be buried three feet into the ground.

How long will Polyurethane Foam last?

The polyurethane foam Liftech uses to complete repairs will last indefinitely – through your lifetime and well beyond. It cures within minutes as a solid, impermeable structure that adheres directly to the concrete. It is not susceptible to fracture or failure.