Rough Plumbing

Rough Plumbing

Step # 52 in the Remodelormove.com Bathroom Remodel Planner

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Like the electrical wiring and switch boxes – with the walls open the access is easy to install the pipes for water supply – both hot and cold, for the sewer lines and plumbing vents, and gas lines.  There are a variety of materials allowed for these pipes.  Water supply can be copper or PEX plastic or a few other less common options.  Sewer lines and vents can be black ABS or cast iron or other materials.  Gas lines can also be galvinized, black iron or flexible metal pipes.
 
All of them are generally placed in the walls, in the attic and under the floor to move gases and liquids back and forth.  Like electrical, this work is generally done by a plumber or a general contractor depending on the local regulations and the skill level of your general contractor.  This work is generally quick and is done in a day or two.  The pipes are protected from the nails and screws used to hang the drywall and cabinets by metal plates – these metal plates go on the outside of the studs and are very important – puncturing one of these pipes before or after your wall is a major deal / pain.
 
The electrical doesn’t generally get “tested” after initial installation but the plumbing does.    Many cities and counties require the inspector to see that the gas line is pressure tight with a pressure gauge, that the sewer lines is water tight by filling it up with water and ensuring now that water does not drip or spray out of the joints and the new water lines are hooked up to the normal water pressure and are not leaking.  This is a minimal test – hope your plumbing passes with flying colors!
 
The inspector will also look to see that the pipes are protected from damage from the screws and nails that will be used for installing the drywall and shelving and cabinets that will be installed in the next phases of construction.  The pipes are especially susceptible where they pass through studs and the wall framing which will eventually support the drywall in your home addition.  To protect the pipes nail plates of heavy metal are nailed over the wood where the pipes, and wiring, is placed.  These plates prevent nails and screws from being driven into the pipes for the waters supply and sewer.