Wait, you just bury the beams in the ground? Out here we use concrete footings and the beams are attached to those. Even treated wood will rot if stuck in the ground.
In Florida they use a water jet and sink the pilings into the ground maybe 8 feet. There is no concrete used and it seems termites don't bother them. I think they are treated with something they don't like for sure.
Posts mostly rot at the surface, not below grade. In Boston, there are houses that are hundreds of years old with original sunk-post foundations. If you keep organic matter away from the posts at surface level, they will take a very long time to rot, and if you use drainage to prevent water from flowing under your house, they will essentially never rot.
NZ H5 treated posts are rated to 50 years in the wet ground conditions. Yes they'll rot very slowly. But we here intend to replace the piles after (often before) that period anyway. Before because our seismic codes are regularly updated.
I love pier foundations, but If I was in charge of building codes in your area, I would have a fit. In an area that is prone to earthquakes, that house would just shake off the foundation as there is nothing to keep them upright. You need diagonal bracing on all of the piers to keep them from collapsing to the side.
@@fkfcwj97 For the most part. You just need to determine the load-bearing capacity of the soil and then make sure your footings cover enough surface area. Footings are installed in the hole before the post is installed. They can be made of concrete or a plastic composite. Sometimes, posts are installed without footings, which can be alright, but it means you will need a lot more posts than you would without footings. For small cabins on soils with high load-bearing capacity, where it's also very easy to dig holes, it could possibly make sense to install more posts instead of installing footings.
I'm in British Columbia, near Vancouver, I'd love to build a house in a dense forest around tall, mature, second growth trees. Will this method preserve the root structure and of these trees and not interrupt their ability to absorb water?
Depths depend on soil conditions and could vary from 450mm to 900mm commonly. Occasionally they are 2.0m+ in depth. 50yr+ old houses often were ~300mm deep. Yes, the have concrete footings surrounding and beneath the timber post. a lot like a "concrete sock".
Quick question: what type of insulation do you use underneath the subfloor and what do you cover it with to protect against animals, insects etc.
very well explained. thank you
Wait, you just bury the beams in the ground? Out here we use concrete footings and the beams are attached to those. Even treated wood will rot if stuck in the ground.
In Florida they use a water jet and sink the pilings into the ground maybe 8 feet. There is no concrete used and it seems termites don't bother them. I think they are treated with something they don't like for sure.
Posts mostly rot at the surface, not below grade. In Boston, there are houses that are hundreds of years old with original sunk-post foundations. If you keep organic matter away from the posts at surface level, they will take a very long time to rot, and if you use drainage to prevent water from flowing under your house, they will essentially never rot.
NZ H5 treated posts are rated to 50 years in the wet ground conditions. Yes they'll rot very slowly. But we here intend to replace the piles after (often before) that period anyway. Before because our seismic codes are regularly updated.
We do this in USA. Very good way to build a house
Boron treatment floor just exposed to the outside maybe h3.2 tanalised floor joist
Thanks mate!
Lookin' good
I love pier foundations, but If I was in charge of building codes in your area, I would have a fit. In an area that is prone to earthquakes, that house would just shake off the foundation as there is nothing to keep them upright. You need diagonal bracing on all of the piers to keep them from collapsing to the side.
Do houses with pier foundation hold as much weight as houses built on concrete foundation?
anerioone not if post are deep enough
@@fkfcwj97 For the most part. You just need to determine the load-bearing capacity of the soil and then make sure your footings cover enough surface area. Footings are installed in the hole before the post is installed. They can be made of concrete or a plastic composite. Sometimes, posts are installed without footings, which can be alright, but it means you will need a lot more posts than you would without footings. For small cabins on soils with high load-bearing capacity, where it's also very easy to dig holes, it could possibly make sense to install more posts instead of installing footings.
yes can use diagonal bracing which allows you use shallow footings. however you can also use deeper footings and not install diagonal bracing.
What keeps the house from racking side to side?
The post are deep in the ground making them unable to move side to side.
What are you gonna do with the very buttom? are you gonna add there ground or?
I'm in British Columbia, near Vancouver, I'd love to build a house in a dense forest around tall, mature, second growth trees. Will this method preserve the root structure and of these trees and not interrupt their ability to absorb water?
yes
Is this good in freezing/cold conditions like Canadian harsh weather?
as long as your posts reach below the frost line, yes. Here in NH, that's 4 feet below grade.
Just for a matter of interest, how deep are those pile posts planted, and are they anchored to the bottom with a concrete foot?
Depths depend on soil conditions and could vary from 450mm to 900mm commonly. Occasionally they are 2.0m+ in depth. 50yr+ old houses often were ~300mm deep.
Yes, the have concrete footings surrounding and beneath the timber post. a lot like a "concrete sock".
How do you avoid termites?
I'm not an expert. But I think the silver paper used underfloor is now illegal in NZ for anyone watching this 7 yrs on. :)
Shambolic foundation. No bracing/laughable connectors. Just slide off in earthquakes. Christchurch found out the hard way.
Nice video, what do you use to "Anchor" the Bearers to the Timber posts?
Use gang or skew nails, you can also use nailed in plates
How much joist OC
Stop putting so many batts in new housing its hot as F!! The entire house is full of batts don't need it under the floor as well wtf.