Hello!
A question I haven't really been able to find a good answer for online:
Is it currently okay to use pressure-treated decking timber as support for the subfloor/foundation base on a house built on pier foundation?
I've read a bit about odor problems but I believe I shouldn't have those problems since the entire foundation is open all around except for the deck that will be surrounding it.
Can it simply be used nowadays?
In this case, I'm mainly interested in what the norm is today or according to regulations. Feel free to leave your personal opinions on this aside.
Follow-up question:
What could be appropriate to use if it’s not allowed to use it?
My intention is to cut asfaboard to fit into the floor joist that then rests on 28x120 or 28x95mm timber nailed from beneath the joist and also nail the asfaboard from the topside with roofing nails to avoid the board "sagging" over time.
A question I haven't really been able to find a good answer for online:
Is it currently okay to use pressure-treated decking timber as support for the subfloor/foundation base on a house built on pier foundation?
I've read a bit about odor problems but I believe I shouldn't have those problems since the entire foundation is open all around except for the deck that will be surrounding it.
Can it simply be used nowadays?
In this case, I'm mainly interested in what the norm is today or according to regulations. Feel free to leave your personal opinions on this aside.
Follow-up question:
What could be appropriate to use if it’s not allowed to use it?
My intention is to cut asfaboard to fit into the floor joist that then rests on 28x120 or 28x95mm timber nailed from beneath the joist and also nail the asfaboard from the topside with roofing nails to avoid the board "sagging" over time.
Normally it is not printed, but it doesn't matter in your case, it is open and on the underside only when there is a risk of moisture, for example, in the sill it is damaging to have it there. A board for example 28x120 or 145 width, is nailed to the underside of the floor joist lumber, extends beyond so it becomes like a shelf for the board to lie on, that is the normal method. What you choose for shelf width is up to you. Just a warning, when you've got the board in place, it is very easy to see wrong and step on it, then you may fall with perhaps significant damage as a result, the board does not carry weight and will break.
Go for it, the printed material will be protected from moisture above and also be open, not enclosed. I did something similar and laid asfa on printed 45x45.
As a curiosity, I can also mention that one of the idiots who came to blow in insulation at my place did exactly what Liteavvarje warns about; stepped right through the asfaboard...
As a curiosity, I can also mention that one of the idiots who came to blow in insulation at my place did exactly what Liteavvarje warns about; stepped right through the asfaboard...
As useless points out, there is no need for pressure-treated wood in this situation. Treated wood should be used outdoors either when the wood is exposed to constant precipitation (class AB) or has ground contact (class A). It adds nothing in the current situation.
The house stands on rock, and cracks in the rock are sealed with concrete, the only water that will be under the house is what blows in when it rains sideways and that in turn dries away quickly after it stops raining.
Then maybe I could save a few bucks by choosing untreated timber.
In that case, it would have to be exterior paneling as it is cheaper than raw boards.
and that in turn dries away quickly after it stops raining.Then maybe I could save a few bucks by choosing untreated timber.
In that case, it would have to be exterior paneling as it is cheaper than raw boards.
It's okay to use pressure-treated wood for the sill and also support the baseboard in an open pier foundation. I would never use asphalt board but instead use cement deck boards or 6 or 9 mm fiberboard that is borate or wax-treated. They have the correct dimensions adapted to cc600 so they are quick to lay. At the country house, I used pressure-treated wood 17x95 as a baseboard for the guest cottage with an open pier foundation and then waxed deck boards. This was 4 years ago, and I checked the pier foundation this summer, and it looked perfect.
T ToRy said:Go for it, the printed will be protected from moisture from above and will be open, not enclosed. I did something similar and placed asfa on printed 45x45.
As a curiosity, I can also mention that one of the idiots who came to blow in insulation at my place did exactly what Liteavvarje warns about; stepped right through the asfaboard...