Foo - Question about hoses and plumbing

I am trying to install a faucet on the outside of my parent's house. I have soldered most of the pipe into place and have located the water line I'd like to tap into. I've always used strictly rigid copper piping when doing any sort of plumbing (or compressed air) installations, but I feel like this may need to change. I need to navigate through a very tricky, awkwardly angled section that is, without serious work with a sawzall, impossible to do with rigid piping. Is it permissible to use a piece of garden hose to navigate through here? There will need to be about a 2' length of the hose, and half of it will be exposed to the sub freezing temperatures New Hampshire provides in the winter.

Don't use garden hose. It deteriorates. Use something designed for plumbing like PEX.

Use lots and lots of pipe dope, and then....uhhh, I forget.

I'm not sure what you've purchased already, but it sounds like a recipe for disaster. For exterior applications in freezing climates you'll need to use a frost-proof spigot (or sillcock. Heh).

http://www.homerepairforum.com/images/uploads/2005-9-12_Frost_Proof_Sillcock_w550.JPG
It should be sized to the depth of your exterior wall to the pipe you're trying to tee into. The valve is on the inside, preventing freezing issues and will solder up to your existing pipe with the right fittings. If you choose parts carefully, you shouldn't need a flexible line at all, but if it's unavoidable you may want to look at Wirsbo/Pex as Stan suggested.

Ask for flexible copper pipe at the store. PEX will work too.

I've already got the Sillcock. PEX, excellent. I'll buy that tomorrow. I only need a 2' section of it, the rest can be rigid copper.

I do bathroom remodeling for a living. We are using PEX for just about everything. Just attach a Sharkbite on the copper line and run the PEX

There is nothing on a house that can't be forced to accommodate your needs. Tools like torches, angle grinders, hammers of various sizes, pry bars, sawzalls, chisels, these things make a stubborn wall a slight inconvenience, irradiated within a few minutes.

If needed, just pull the siding off or be ready to replace it, and if needed have some insulation and some drywall or plaster and paint ready to go. It's really not a big deal.

Are you going to be able to shut off and drain the exposed exterior piping? Don't let those freezing temps damage those lines.

As far as routing options go, how about flexible copper tubing?

Job is done. This is the second faucet I've installed on this house, and I always include a shut off valve for every outdoor thing I install. In the winter my parents will shut off the flow of water from the valve within, and open the Sillcock to allow any pressure to escape. I have 12ft of copper exposed to the elements.

My hardware store only carried flexible copper tubing, so I just used that. I sort of wanted to use PEX, but didn't feel like going all the way to Home Depot. Then a 60yr old pipe fitting broke in my hand, leaving the house without water, so I ended up having to go to Home depot anyways because the hardware store was closed :p