Plumbing, HVAC & Electrical Rough In

While the work on the exterior of the house has progressed, so has the work on the interior. Shortly after the windows were installed, the plumbing sub-contractor started installing drain, waste and vent piping. This work begins in the basement with the extension of the piping that was installed under the basement floor to the main level at all locations of plumbing fixtures and water using appliances.

Waste piping in floor trusses.

Master Bath waste piping. Lavatory drain pipes are on the right. The pipe branching to the left is from the toilet. The pipe offsetting and going straight ahead is the shower drain.

Waste and vent piping for the lavatories in the North wall of the Master Bath.

Waste and vent piping for the clothes washer in the South wall of the Laundry room. View from the stairway.

The water supply system is a Vanguard Pipe & Fittings Ltd., MANABLOC distribution system that utilizes a modular manifold and polyethylene hot and cold supply lines to each fixture. Benefits of this system include: minimum water temperature and pressure changes during simultaneous operation of numerous fixtures, faster hot water delivery, water and energy savings and fewer fittings located behind the wall.

Modular manifold installed on a basement wall with hot (red) and cold (white) polyethylene piping.

Close up of manifold with built-in shut off valves.

Hot and cold piping for the lavatories in the Master Bath Room.

Hot and cold piping for the lavatory and toilet at the South wall of Bath 2.

Several days after the plumber started, the HVAC and electrical sub-contractors begin their work as well. Ductwork starts to take shape in the basement while electrical boxes for outlets and switches are nailed to the studs.

Supply ductwork in main level floor trusses. Since all the ductwork will be in conditioned space, it does not need to be insulated.

Washer box with electrical outlets for the washer and the dryer nailed to wall studs. View from the Laundry room.

Waste and vent piping installed in the West wall of the Kitchen. Outlet boxes are nailed on the wall studs.

Sometime during the framing of the house, the owner decided to finish the basement. This required the selection and delivery of the modular tub-shower unit for the basement bath.

The modular tub-shower unit for the basement bath.

The modular tub-shower unit installed in the basement bath room. The pipe sticking out of the floor is the drain line for the toilet.

Hot and cold water supply lines for the tub – shower unit in the basement bath room.

The mixing valve for the shower in Bath 2 with polyethylene hot and cold piping. Copper pipe above the valve is to the shower head.

While performing the energy modeling for this house, an electric heat pump was chosen as the heating and air conditioning system. The equipment suggested by the HVAC contractor is a York, 18 SEER air-source heat pump. To obtain two additional LEED® for Homes points, a MERV 13 filter is also installed and as an option, the owner selected a General Aire bypass humidifier. Other equipment not yet installed includes a Lifebreath heat recovery ventilator for two LEED points and a Beam HEPA central air filtration system for 1 LEED point.

HVAC equipment installed in the basement. The York variable speed air handler is on the right side and the humidifier is on the left side. The filter rack is between the return air duct on the left side and the plenum under the air handler unit on the right side.

Each bathroom will have Nutone® Premier ENERGY STAR® rated bath exhaust fan vented to the outside. A motion sensor switch will control each fan. View of the Master Bath ceiling.

The decision to finish the basement also means that additional light fixtures will be installed in the ceiling of the Family Room. View of the Family Room ceiling looking North.

As the work progresses, the basement ceiling become crowed with ductwork, water pipe, light fixtures and wiring. View of the Family Room ceiling looking West toward the stair to the Main Level.

City code requires the location of the electric meter to be visible from the transformer located in the utility easement at the rear of the lot.

The meter box is located on the North side of the house, just outside Bedroom 2. The transformer is located out of the photo to the left.

City code also requires the location of the electric service panel be a maximum of 15’ away from the meter.

In order not to compromise the building envelope, the electric service panel is surface mounted on the Garage side of the Bedroom 2 closet.

Electric service panel installed on the East wall of the Garage.

The owner selected recessed light fixtures for the Kitchen, Living Room, Dining area, Master Bed Room and Family Room. Since all these fixtures , except those in the Family Room ,will be in the attic, they are required to be ICAT (Insulated Ceiling Air Tight) labeled to comply with the U.S. Dept. of Energy’s ENERGY STAR® Thermal Bypass requirements and the Builder’s Challenge requirements.

Kitchen light fixtures in vaulted ceiling.

Close up of recessed light fixture with a seal around the housing.

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One Response to “Plumbing, HVAC & Electrical Rough In”

  1. Scott Hale Plumbing Says:

    Great pictures and details. Thanks for taking the time to post this.

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