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Aerodynamics - height of trees

 
Hoeye Vokter
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I'm about to top some big spruces, but I'm wondering if there is any rule of thumb when it comes to height of "hedge" to height of house and turbulence?
 
Fred Morgan
steward
Posts: 979
Location: Northern Zone, Costa Rica - 200 to 300 meters Tropical Humid Rainforest
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One thing to take into account, you don't want to remove more than 1/3 at a time of the foliage.

The height of the hedge to house probably needs to also have distance from the house.
 
andrew curr
Posts: 288
Location: Deepwater northern New South wales Australia
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Is this to reduce shading?
 
Hoeye Vokter
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It's all spruces, 40ft windbreakers... taking them because I need wood, and because they will fall over soner or later.. a few as already been blown over...

I will no doubt get more noise and movement in the house when the wind hits my roof, but I was thinking/hoping I could lessen it by topping at some magical aero-point, or something... =o)
 
gani et se
Posts: 215
Location: Douglas County OR
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According to a South Dakota extension service pdf here wind speed reduction is measurable 2 - 5 times the height of the windbreak.
Hope that helps.
Gani
 
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