land ripping necessary.

[canhle]

Is it necessary to rip lava to build? Can we put cinder on lava to build?

thanks

canhle

[Hotzcatz]

You don't have to rip to build a house, but if you have plate lava and want to grow things, you may want to have your garden area ripped so there will be drainage.

You can not pour concrete nor set concrete footings for your house on cinders since cinders crush and are not a firm foundation. Use gravel where the house will be if you are pouring concrete.

[canhle]

Thanks Hotzcatz,
But if I am building on post and pier, do I have to rip?

canhle

[Rob Tucker]

For P&P you don't need to rip. But as stated do not lay cinder under any concrete footing slands, or pier locations.

[StillHope]

Does anyone know how much extra to rip the whole lot (8000 sq ft)if the house is about 800 sq ft?
I would appreciate any suggestions.

[billy]

2 to 3 thousand depends who you call or know.

[mella l]

Hi Canh,

We didn't rip our lot, just cleared an area for the house. Luckily our lot was pretty level, and the D-7 didn't fall into any pukas, holes! That said we will one day build post in pier.

So I'm not sure how it is done but holes will need to be dug, hammered, or excavated someway so that the piers can be cemented into the holes for a solid anchor. You know earthquake safe!

Just a dreamer not an engineer, or builder!

mella l

[StillHope]

Thank you ,Billy.I might be looking for the service in 1-2 months.Any references?I would appreciate it.

[Hotzcatz]

Usually pier blocks are just set on a level bit of ground, you don't want to attach them solidly to the earth unless you are on a slope or have some other considerations. The pier blocks are strapped to the bottom of the posts, the posts are braced two, three or four ways to the bottom of the floor joists and if there is an earthquake the posts will stay in place under the house if they can move when the house moves. If you have them attached firmly to the ground and the ground shakes, then they may break off the posts and stay put when your house dances.

[Daniel]

Still hope,

Your lot might not need ripping. It seemed like it was quite loose already when I visited it.

Daniel R Diamond