Hello!
I'm starting to realize that building a noise barrier is more complicated than I initially thought. What I'm having the most difficulty with is figuring out how the foundation should look. If I remember correctly, I need to go down about 1.2m to reach frost-free ground (Kungsbacka), which means fairly substantial concrete posts.
But then I found these:
http://www.skruvpalar.se/products.html?id=0/2
I know some neighbors have used this technique for a significantly smaller fence. But will it hold for this size of fence, and does it work when they are screwed into the ground where a (gigantic) spruce hedge previously stood? They seem really convenient. But are they cost-effective?
Info about the planned fence:
Thanks in advance!
/Josef
I'm starting to realize that building a noise barrier is more complicated than I initially thought. What I'm having the most difficulty with is figuring out how the foundation should look. If I remember correctly, I need to go down about 1.2m to reach frost-free ground (Kungsbacka), which means fairly substantial concrete posts.
But then I found these:
http://www.skruvpalar.se/products.html?id=0/2
I know some neighbors have used this technique for a significantly smaller fence. But will it hold for this size of fence, and does it work when they are screwed into the ground where a (gigantic) spruce hedge previously stood? They seem really convenient. But are they cost-effective?
Info about the planned fence:
- There is currently a spruce hedge where the fence will stand that needs to be cut down, and roots that we hope to pull up with an excavator.
- Classic framed fence with vertical paneling
- About 50m long (Built at a 90° angle on one edge and about 30° on the other)
- About 2m high
- About 15kg/m2 plank thickness (impregnated pine)
- Will stand right next to a 60-road (as close as possible)
- Not much heavy traffic, maybe a bus every 30 minutes during rush hour. The rest are personal vehicles, maybe 2 per minute
- c/c posts not decided
Thanks in advance!
/Josef
Well..
I've checked with the municipality that it's reasonable and that it should be approved. However, I haven't submitted a building permit application yet, I'm just in the planning stage. I don't have any direct neighbors across who need to be considered. The fence won't obstruct drivers, and currently, there's a huge spruce hedge here instead. So there will be no negative change to the environment..
I've checked with the municipality that it's reasonable and that it should be approved. However, I haven't submitted a building permit application yet, I'm just in the planning stage. I don't have any direct neighbors across who need to be considered. The fence won't obstruct drivers, and currently, there's a huge spruce hedge here instead. So there will be no negative change to the environment..
If it is going to stand right next to the road, don't forget to dimension for the load from snow plowing, otherwise, the fence will probably soon be down...
Exactly, the tricky part is knowing how much load snow plowing gives. It will probably be 1-2m from the road with a ditch in between. The load from the snow will at least be from the "right" direction since the suction from heavier vehicles should be the determining factor. (i.e., it won't be snow load + suction since they aren't directed in the same way)
Still have a bit to think about... Has anyone tried different types of piles/pillars and have any tips?
Still have a bit to think about... Has anyone tried different types of piles/pillars and have any tips?
You can always check with a professional company like http://www.terrawing.se/ They also handle the calculations but I have no idea about the price level.....
I don't think just using 22mm decking as a noise barrier will be very effective. I would guess you need double layers of 45mm timber with an air gap between, preferably filled with some absorbing material. Near the ground, you can lay fiber cement boards for example. It's hard to say if a 2m height is sufficient. Regarding the depth of the posts, it depends on the type of ground you have. A completely solid 2m fence can be a huge windcatcher that might need additional support.
Is a car every 30 seconds really so disturbing that it's worth the money and effort for the fence?
Is a car every 30 seconds really so disturbing that it's worth the money and effort for the fence?
No, I'm not entirely sure it's worth the money to build a fence.
According to calculations from the traffic authority, we are entitled to noise reduction measures, so we'll see what they want to do. I don't think we can choose ourselves where we want to allocate efforts, rather they will probably want to install triple glazing everywhere and such.
Maybe it's a smart idea to contact someone who can perform specific load calculations that we can adhere to.
According to calculations from the traffic authority, we are entitled to noise reduction measures, so we'll see what they want to do. I don't think we can choose ourselves where we want to allocate efforts, rather they will probably want to install triple glazing everywhere and such.
Maybe it's a smart idea to contact someone who can perform specific load calculations that we can adhere to.