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Heritage tree ordinance implementation suggestions

From: domainremoved <Patti>
Date: Tue, 29 Oct 2019 16:47:47 -0700

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Council:
It is good to see the thoughtful update of the heritage tree ordinance. Below are a couple suggestions for implementation as its details are finalized.

In view of the increasing importance of utilizing solar power when possible, I ask that the requirements for heritage tree replacement explicitly consider potential impacts on both active and passive solar gain. The latter is especially important during cold winters when sunlight on walls and windows can make all the difference between keeping on the furnace during the day or enjoying the warmth of the sun entering from south windows.

This consideration would involve only one side of a property and its impacts on another property (i.e., the impacts of a tree planted on the south side of another property).

Deciduous trees are far more solar friendly than evergreen trees. A deciduous tree, for example, would provide summer shade (desirable for walls and windows) and allow winter sunlight to reach walls and windows. An evergreen tree would block sunlight year-round.
 Large evergreen trees such as redwoods can wipe out solar access across several lots, so these should be excluded from the allowed replacement list.

This is not hypothetical: we purchased our home nearly 30 years ago, selecting it because of its orientation to the sun because of my husband's professional experience advising major residential builders on how to maximize active and solar access. We have installed solar panels on one part of our roof, and enjoy the benefits of very tall deciduous tulip trees long growing in our neighbor's yard directly south. If those heritage trees were replaced with evergreen trees, our solar panels may still have adequate solar access, but our home would lose the warmth and sunlight that we enjoy in winter months when the leaves have fallen.

Thanks for your consideration.
Patti Fry

Sent from my iPhone...pls excuse typos
Received on Tue Oct 29 2019 - 16:39:20 PDT

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