Home Inspection Expectations & System Life Expectancy

 

A-Pro Rockhill Home Inspector’s goal is to perform the best, most comprehensive home inspections in America.

Good decisions and successful home sales depend on educated consumers, and we believe home inspectors play an invaluable role in the process. Through industry-leading inspections, strong communication, balanced reporting and a desire to add value to real estate transactions, A-Pro Rockhill Home Inspectors is changing the way people look at home inspections. Put our knowledge and expertise to work for you!

Here’s what you can expect with A-Pro Rockhill Home Inspectors:

• You receive a comprehensive 500-point inspection that will cover major components of the home, from foundation to rooftop.
• You are welcome to join us during the inspection to gain a better understanding of the property, what we look for and the property’s overall potential.
• You receive an informative oral report at the end of the inspection detailing the major finds discovered during our inspection. You may take this time to further address questions and concerns with our expert.
• You benefit from the industry’s most comprehensive and professional itemized inspection report, customized for the property. Our reports are fair and balanced, highlighting both positive attributes and areas of concern to provide a well-rounded look at the property’s potential.
• Your safety during the inspection is a top priority, both personally and financially.

What is a home inspection?

A general home inspection is a visual inspection conducted by a highly trained and certified professional for the purpose of identifying past, present, and potential or foreseeable issues or areas of concern.

While working for you, A-Pro Rockhill Home Inspectors  reports on:

• Structural Systems Inspection
• Roofing Systems Inspection
• Exterior Systems Inspection
• Interior Systems Inspection
• Electrical Systems Inspection
• Heating & Cooling Systems Inspection
• Insulation Systems Inspection
• Ventilation Systems Inspection
• Plumbing Systems Inspection
• Appliances Systems Inspection

Structural Systems Inspection 

A home’s structural integrity is critical. If not structurally sound, a home poses the threat of serious safety issues and significant costs down the road. Almost every component of a home provides clues as to what is going on with its structure. Our structural analysis provides clients with a written opinion of the structural system’s performance from top to bottom, including inspection of:

• Foundations
• Drainage and Grading around Foundation
• Structure of Roof
• Material of Roof Covering
• Attic

Let’s discuss each of the components listed above:

Foundations 

Concerns about the foundation are typically at the top of the list relating to a home’s structure.  Foundation repairs are expensive, and foundation problems often cause other costly home repairs. Your A-Pro Rockhill Home Inspectors understand your concerns. Our inspections include a comprehensive analysis of the home’s foundation as part of the structural systems analysis. Your inspector reports on the visible condition of these foundation-related areas:

• High and Low Points of the Foundation (evaluated through a Foundation Level Survey)
• Foundation Cracks
• Visible Foundation Deflections
• Sloping Floors
• Floor Movement
• Cracks within Interior and Exterior Wall Systems
• Doors and Windows negatively impacted by home movement
• Framing Components and Trim negatively impacted by home movement

LIFE EXPECTANCY -FOUNDATIONS	YEARS
Baseboard Waterproofing System	50
Bituminous-Coating Waterproofing	10
Concrete Block	100+
Insulated Concrete Forms (ICFs)	100
Post and Pier	20 to 65
Post and Tensioned Slab on Grade	100+
Poured Concrete Footings and Foundation	100+
Slab on Grade (concrete)	100
Wood Foundation	5 to 40
Permanent Wood Foundation (PWF; treated)	75

 

Grading and Drainage 

Your A-Pro Rockhill Home Inspectors  inspector also inspects the exterior of your property for conditions that are detrimental to the performance life of the foundation, including:

• Ground Coverage
• Slope Grade and Run-off Pattern
• Soil Heights
• Landscape – Trees and Shrubs
• Gutter Placement and Flow

LIFE EXPECTANCY – SITE & LANDSCAPING	YEARS
American Red Clay	100+
Asphalt Driveway	15 to 20
Brick and Concrete Patio	15 to 25
Clay Paving	100+
Concrete Walks	40 to 50
Controllers	15
Gravel Walks	4 to 6
Mulch	1 to 2
Polyvinyl Fencing	100+
Sprinkler Heads	10 to 14
Underground PVC Piping	60+
Valves	20
Wood Chips	1 to 5
Wood Fencing	20

 

Roofing System Inspection 

The roof structure is a key component of the structural systems analysis. It must be engineered to properly distribute the live and dead loads to the foundation. Your A-Pro Rockhill Home Inspectors  inspector examines the roofing structure from both the exterior and interior to evaluate its condition and note the following condition issues:

• Sagging Ceilings
• Wood Rot
• Wet Insulation
• Ridge Separation
• Loose Knee Braces
• Loose Rafters
• Moisture Intrusion
• Insect or Rodent Presence
• Fire Damage

Roof Covering Materials 

The roof covering’s primary purpose is to shield the home’s interior from the effects of adverse weather. Your A-Pro Rockhill Home Inspectors  inspector examines the roof and reports the roof material type as well as any visible conditions that prohibit the roofing material from performing its job. Your inspector may or may not climb on the roof to inspect it. Drones, telephoto lenses and other improving technologies are being used more frequently when a roof poses safety hazards or may be damaged if walked upon.

LIFE EXPECTANCY – ROOFING	YEARS
Aluminum Coating	3 to 7
Asphalt Shingles (3-tab)	20
Asphalt (architectural)	30
BUR (built-up roofing)	30
Clay/Concrete	100+
Coal and Tar	30
Copper	70+
EPDM (ethylene propylene diene monomer) Rubber	15 to 25
Fiber Cement	25
Green (vegetation-covered)	5 to 40
Metal	40 to 80
Modified Bitumen	20
Simulated Slate	10 to 35
Slate	60 to 150
TPO	7 to 20
Wood	25

 

Attic 

An attic inspection can disclose significant problems.

Although the attic may not be on the buyer’s mind, there are many reasons why it’s one of the most important areas of concern for home inspectors. An attic inspection should not be overlooked because it can tell much about the history of a home. It can provide evidence of potentially significant problems that may not be disclosed by the home seller or even acknowledged by the current occupant of the home.

While in the attic, your A-Pro Rockhill Home Inspectors  inspector evaluates the structural components of your roofing and framing systems, the chimney, and insulation and ventilation systems. Your inspector will also check for evidence of wood rot, moisture intrusion, fire damage, and the presence of insects or rodents. Accessible attic plumbing, electrical and mechanical components are also evaluated for performance and included in the report.

Exterior Systems Inspection 

A-Pro Rockhill Home Inspectors ’s exterior systems inspection is a visual examination of the home’s exterior walls. Your inspector evaluates performance issues such as structural support member movement and common installation problems. Because moisture intrusion is impossible to determine if there are no active or visual signs, your A-Pro Rockhill Home Inspectors  inspector checks common problem areas for evidence of moisture damage and deficiencies in the flashing. Long before closing, an exterior inspection can let a homebuyer know of potential problems: rotten and damaged siding; water pooling around the home; broken, rusted or damaged gutters; and peeling paint, particularly important (because of lead concerns) in homes built before 1978.

A-Pro Rockhill Home Inspectors  inspects:

• Doors, including Egress Doors
• Windows, Windowsills, Window Wells
• Putty
• Weather Stripping
• Shutters
• Awnings
• Fogged Windows
• Siding
• Insulation Value of Siding
• Wood Siding
• Solid Wood and Lumber Siding
• Plywood Siding
• Shingles and Shakes
• Hardboard
• OSB Siding
• Particleboard Siding
• Finish Problems, including Chalking and Rot
• Aluminum and Steel Siding
• Grounding Metal Siding
• Vinyl Siding
• SIPs
• Brick
• Stone
• Stucco and EIFS
• Asbestos
• Cement-Based Siding
• Clay and Slate Shingles
• Asphalt Shingles
• Masonry Exterior Wall Covering
• Concrete Blocks
• Manufactured Stone
• Foundation Cracks and Water
• Masonry Foundation and Piers
• Shrinkage and Cracking
• Sweeping or Horizontal Cracking
• Above-Ground Masonry Walls
• Eaves, Soffits and Fasciae
• Wall Assembly
• House Wrap
• Waterproofing and Damp-Proofing
• Permanent Wood Foundations
• Common Problems with Walls
• Inadequate Clearance from the Roof Cover
• Dense Vegetation
• Wood and Soil Contact
• Water Intrusion
• Flashing of Wall Components and Moisture Problems
• Caulking
• Sealants for Through-Wall Penetrations
• Kickout Flashing
• Exterior Drainage Systems
• Site Surface Drainage
• Foundation Drainage
• Roof and Surface Drainage
• Roof Overhangs and Projections
• Roof Drainage, Gutters and Downspouts
• Drainage Slope
• Property Drainage
• Sump Pumps
• Landscaping
• Fences
• Ramps
• Stairways
• Risers and Treads
• Guards
• Spheres
• Handgrips
• Emergency Escape and Rescue Openings
• Basement Walkouts
• Exterior Decks
• Garage
• Garage Door Opener
• Chimneys
• Defensible Space
• Retaining Walls
• Driveway, Walkways and Pavements
• Buried Oil Tanks
• Yards and Courts
• Flood Zones
• Exterior Water
• GFCI-Protection for the Exterior
• Clothes Dryer Exhaust
• Private Wells
• Septic Systems
• More

LIFE EXPECTANCY – SIDINGS, FLASHING & ACCESSORIES	YEARS
Aluminum Siding	25 to 40+
Aluminum Gutters, Downspouts, Soffit and Fascia	20 to 40+
Asbestos Shingle	100
Brick	100+
Cementitious	100+
Copper Downspouts	100
Copper Gutters	50+
Engineered Wood	100+
Fiber Cement	100+
Galvanized Steel Gutters/Downspouts	20
Manufactured Stone	100+
Stone	100+
Stucco/EIFS	50+
Trim	25
Vinyl Siding	60
Vinyl Gutters and Downspouts	25+
Wood/Exterior Shutters	20

 

LIFE EXPECTANCY -ADHESIVES, CAULK & PAINTS	YEARS
Caulking (interior & exterior)	5 to 10
Construction Glue	20+
Paint (exterior)	7 to 10
Paint (interior)	10 to 15
Roofing Adhesives/Cements	15+
Sealants	8
Stains	3 to 8

 

Porches, Balconies, Decks and Carports 

Your A-Pro Rockhill Home Inspectors  inspector visually examines porches, balconies, decks and carports, understanding that these additions are too often prone to improper installation methods. Our goal is to help prevent costly repairs and accidents caused by potentially unsafe features. These areas are inspected at the visible attachments and for safety issues related to balusters, spindles, rails and stairs.

LIFE EXPECTANCY -DECKS	YEARS
Deck Planks	15
Composite	8 to 25
Structural Wood	10 to 30

 

LIFE EXPECTANCY – GARAGES	YEARS
Garage Doors	20 to 25
Garage Door Openers	10 to 15

 

LIFE EXPECTANCY – COUNTERTOPS	YEARS
Concrete	50
Cultured Marble	20
Natural Stone	100+
Laminate	20 to 30
Resin	10+
Tile	100+
Wood	100+
LIFE EXPECTANCY – CABINETRY & STORAGE	YEARS
Bathroom Cabinets	50+
Closet Shelves	100+
Entertainment Center/Home Office	10
Garage/Laundry Cabinets	70+
Kitchen Cabinets	50
Medicine Cabinet	25+
Modular (stock manufacturing-type)	50
LIFE EXPECTANCY –PANELS	YEARS
Flooring Underlayment	25
Hardboard	40
Particleboard	60
Plywood	100
Softwood	30
Oriented Strand Board (OSB)	60
Wall Panels	100+

 

Interior Systems Inspection  

Inspecting the interior of a home is an important component of the home inspection process. Your A-Pro Rockhill Home Inspectors  inspector closely checks for safety issues and looks for indications of problems with installation, structure or water penetration. An interior analysis provides our clients with a written visual opinion of the home interior’s performance, including:

• Ceilings and Floors
• Doors (Interior and Exterior)
• Walls
• Windows
• Stairs (if applicable)
• Fireplace and Chimney
• Cosmetic items are not noted in your A-Pro Rockhill Home Inspectors  report unless they relate to a more potentially significant problem.

Ceilings and Floors 

Your A-Pro Rockhill Home Inspectors  Home inspector examines and reports on the ceilings and floors, primarily focusing on structural integrity and water penetration. Bathrooms and kitchen floors and ceilings receive special attention.

LIFE EXPECTANCY -FLOORING	YEARS
All Wood Floors	100+
Bamboo	100+
Brick Pavers	100+
Carpet	8 to 10
Concrete	50+
Engineered Wood	50+
Exotic Wood	100+
Granite	100+
Laminate	15 to 25
Linoleum	25
Marble	100+
Other Domestic Wood	100+
Slate	100
Terrazzo	75+
Tile	75 to 100
Vinyl	25

 

Doors 

Your A-Pro Rockhill Home Inspectors  inspector examines and reports on interior and exterior doors.

While inspecting exterior doors, your inspector checks weather tightness, lock reliability, glass panes and thresholds. In addition, garage doors are inspected for fire safety compliance as well as personal safety compliance related to automated door openers and springs.

• While inspecting interior doors, your inspector answers the following:
• Do doors provide privacy and noise reduction?
• Do doors provide for adequate air flow between spaces?
• Are doors free from binding?
• Do the hardware and latching mechanisms work properly?
• Interior doors that do not operate properly can be an indication of structural movement of the home.

LIFE EXPECTANCY -DOORS	YEARS
Closet (interior)	100+
Fiberglass (exterior)	100+
Fire-Rated Steel (exterior)	100+
French (interior)	30 to 50

 

Walls 

Your A-Pro Rockhill Home Inspectors  inspector visually inspects the interior walls. Interior walls are generally covered, making insulation, plumbing and electrical items behind these walls impossible to inspect. When examining interior walls, your inspector will be primarily focused on structural movement and installation deficiencies.

Windows 

Your A-Pro Rockhill Home Inspectors  inspector visually inspects and reports on the home’s windows. Your report will contain the type of and material used for the windows, as well the performance of a representative number of the home’s windows as they relate to operability and hardware. A home’s windows are a key component of the overall building system. Once they are completely installed it is impossible to determine framing practices and proper flashing. Therefore, your A-Pro Rockhill Home Inspectors  inspector will rely on visual indicators to assist in determining window performance. Specifically, your A-Pro Rockhill Home Inspectors  inspector will be looking for and noting deficiencies relating to:

• Glazing
• Weather Stripping
• Safety Glass Locations
• Emergency Egress Compliance

LIFE EXPECTANCY – WINDOWS	YEARS
Aluminum/Aluminum-Clad	15 to 20
Double-Pane	8 to 20
Skylights	10 to 20
Window Glazing	10+
Vinyl/Fiberglass Windows	20 to 40
Wood	30+

 

Stairways (interior and exterior) 

Your family’s safety is a top priority at A-Pro Rockhill Home Inspectors . We understand that home accidents relating to stairways occur frequently. Your A-Pro Rockhill Home Inspectors  inspector visually inspects and reports on stairways in and outside the home, making note of deficiencies in:

• Clearance
• Landings
• Lighting
• Railings, Balusters, Spindles and Guards
• Risers and Tread

Fireplace and Chimney 

Your A-Pro Rockhill Home Inspectors  inspector visually examines and reports on fireplaces and chimneys. Please note that the inspection does not include testing of the draft. A-Pro Rockhill Home Inspectors  recommends that yearly fireplace/chimney maintenance be conducted by a certified professional. In addition, a certified professional should inspect the fireplace/chimney before using the first time.

The chimney/fireplace inspection includes an examination of visible and accessible components, including:

• Firebox
• Hearth Extension
• Fuel Source
• Combustion Air Source
• Doors, Circulating Fan
• Lintel
• Damper
• Flue
• Fire Blocking at Attic Penetration
• Chimney Crown
• Cap
• Spark Arrester
• Cricket
• Safe Roof Clearances

Electrical Systems Inspection  

There are multiple components that must work in harmony to provide electricity to a home. These components make up the electrical system. The goal of the electrical system is to provide safe and efficient functionality to a home. An electrical systems analysis provides our clients with a written opinion of the electrical system’s performance at the time of inspection, including:

• Service Entrance and Panels
• Branch Circuits, Connected Devices and Fixtures

Service Entrance and Panels 

Your family’s safety is a top priority. Your A-Pro Rockhill Home Inspectors  inspector identifies and reports all defects in the main service panel and service entrance. It is important to remember that your inspector, while conducting a visual inspection, will be limited as to what can and cannot be inspected. Generally, homeowners are responsible for everything that happens after the attachment to the meter.

Branch Circuits, Connected Devices and Fixtures 

Your A-Pro Rockhill Home Inspectors  inspector examines and reports on the home’s branch circuit wiring, noting visual damage and where it exits the home’s main and subpanels to a point of connection for occupant use. The inspection and report includes working status of:

• Lights
• Plugs
• Switches
• GFCI Proper Placement
• Proper Grounding

LIFE EXPECTANCY – ELECTRICAL	YEARS
Accessories	10+
Arc-Fault Circuit Interrupters (AFCIs)	30
Bare Copper	100+
Bulbs (compact fluorescent)	8,000 to 10,000+ hours
Bulbs (halogen)	4,000 to 8,000+ hours
Bulbs (incandescent)	1,000 to 2,000+ hours
Bulbs (LED)	30,000 to 50,000+ hours
Copper-Clad Aluminum	100+
Copper-Plated	100+
Fixtures	40
Ground-Fault Circuit Interrupters (GFCIs)	up to 30
Lighting Controls	30+
Residential Propane Backup Generators	12
Service Panel	60
Solar Panels	20 to 30
Solar System Batteries	3 to 12
Wind Turbine Generators	20

 

Heating and Cooling Systems Inspection 

Air quality and comfort are very important to a home. A properly functioning HVAC system is vital to managing moisture conditions leading to air quality and comfort. Our heating and cooling analysis provides our clients with a written opinion of heating and cooling performance at the time of inspection.

HVAC Equipment 

Your A-Pro Rockhill Home Inspectors  inspector understands the importance of a proper functioning HVAC system. Hot, humid air creates moisture conditions within the home that are conducive to:

• Poor air quality
• Physical discomfort
• Fungi growth potential

A proper functioning system will extract humidity while conditioning your home’s air as efficiently as possible. Your A-Pro Rockhill Home Inspectors  inspector examines the unit for its ability to sufficiently heat and cool the home. Primary and secondary pipes and drain pans are also inspected.

LIFE EXPECTANCY -HEATING/COOLING		YEARS
Air Conditioner (central)		7 to 15
Air Exchanger		15
Attic Fan		15 to 25
Boiler		40
Burner		10+
Ceiling Fan		5 to 10
Condenser		8 to 20
Dampers		20+
Dehumidifier		8
Diffusers, Grilles and Registers		25
Ducting		60 to 100
Electric Radiant Heater		40
Evaporator Cooler		15 to 25
Furnace		15 to 25
Gas Fireplace		15 to 25
Heat Exchanger		10 to 15
Heat Pump		10 to 15
Heat-Recovery Ventilator		20
Hot-Water and Steam-Radiant Boiler		40
Humidifier		12
Induction and Fan-Coil Units		10 to 15
	Chimney Cap (concrete)	100+
	Chimney Cap (metal)	10 to 20
	Chimney Cap (mortar)	15
	Chimney Flue Tile	40 to 120
	Thermostats	35
	Ventilator	7

 

Insulation Systems Inspection 

A healthier living environment is facilitated by good ventilation that reduces offensive toxic fumes. The cost to heat and cool a home is greatly impacted by the home’s insulation and duct work. Our insulation /ventilation systems analysis provides our clients with a written opinion of insulation /ventilation performance at the time of inspection, including:

• Insulation
• Duct System, Chases and Vents

Insulation 

Your A-Pro Rockhill Home Inspectors  inspector examines and reports on the home’s insulation, checking on the condition of all visible insulation at key areas within the home:

• Attic
• Roof Cavity
• Exterior Walls
• Basement Walls
• Crawlspace
• Floor Cavity

LIFE EXPECTANCY – INSULATION / INFILTRATION BARRIERS	YEARS
Batts/Rolls	100+
Black Paper (felt paper)	15 to 30
Cellulose	100+
Fiberglass	100+
Foamboard	100+
House Wrap	80+
Liquid-Applied Membrane	50
Loose-Fill	100+
Rock Wool	100+
Wrap Tape	80+

 

Ventilation Systems Inspection 

 

Duct System, Chases and Vents 

Your A-Pro Rockhill Home Inspectors  inspector understands that efficient operation of a home is important. The U.S. Department of Energy estimates that the typical duct system loses 25-40% of the energy used for heating and cooling. Installations where ducts are routed through hot attics, as is often the case in residential homes, lose significantly more energy. Poorly installed and sealed ductwork can be one of the biggest causes of home energy loss.

Your A-Pro Rockhill Home Inspectors  inspector inspects and reports on the ventilation system. Good ventilation yields a healthier living environment, as it reduces the accumulation of offensive and/or toxic fumes. Inadequately sealed ducts and return registers can allow unconditioned air to enter the system and conditioned air to leak out, significantly affecting comfort and heating/cooling costs.

Plumbing System Home Inspection 

A properly functioning plumbing system will provide clean, potable water to the home while effectively and safely removing waste, both critical to the safety and functionality of a home. Our plumbing system analysis provides our clients with a written opinion of plumbing system performance at the time of inspection, including:

• Plumbing Supply
• Distribution System
• Fixtures
• Drains, Waste and Vents
• Water Heating Equipment

Plumbing Supply 

Your A-Pro Rockhill Home Inspectors  inspector examines and reports on the visual findings relating to the plumbing supply, including:

• Main Water Cutoff Location
• Main Gas Cutoff Location
• Type of Incoming Piping
• Source of Water and Gas
• Sufficient Incoming Flow

Distribution Systems 

During the visual inspection of the plumbing distribution system, your A-Pro Rockhill Home Inspectors  inspector examines and reports on visual cross-contamination connections. Your inspector also checks to see if the type of piping system is protected against damage and has proper support.

Much of the gas delivery system is typically concealed from inspection underground, inside walls, under attic insulation, etc. This inspection is restricted to only components that are readily visible and accessible at the time of the inspection.

Fixtures 

Your A-Pro Rockhill Home Inspectors  inspector examines, tests and reports on plumbing fixtures composed of end-use devices such as:

• Commodes
• Sinks
• Tubs
• Showers

Drains, Wastes and Vents 

Your A-Pro Rockhill Home Inspectors  inspector inspects and reports on:

• Drain Operation
• Drain Time
• Vent Operation and Termination
• Type of Sewage Disposal
• Proper Trap installation

Water Heating Systems 

Your A-Pro Rockhill Home Inspectors  inspector inspects and reports on the water heater, as well as shares ways to increase its lifespan and improve its efficiency. The report includes the water heater energy source and approximate age of the unit. Your inspector also checks the safety of the unit’s setup and ventilation.

LIFE EXPECTANCY – PLUMBING/FIXTURES/FAUCETS	YEARS
ABS and PVC Waste Pipe	50 to 80
Accessible/ADA Handles	100+
Acrylic Kitchen Sink	50
Cast-Iron Bathtub	100
Cast-Iron Waste Pipe (above ground)	60
Cast-Iron Waste Pipe (below ground)	50 to 60
Concrete Waste Pipe	100+
Copper Water Lines	70
Enameled Steel Kitchen Sink	5 to 10+
Faucets and Spray Hose	15 to 20
Fiberglass Bathtub and Shower	20
Gas Lines (black steel)	75
Gas Lines (flex)	30
Hose Bibs	20 to 30
Instant (on-demand) Water Heater	10
PEX	40
Plastic Water Lines	75
Saunas/Steam Room	15 to 20
Sewer Grinder Pump	10
Shower Enclosure/Module	50
Shower Doors	20
Showerheads	100+ (if not clogged by mineral/other deposits)
Soapstone Kitchen Sink	100+
Sump Pump	7
Toilet Tank Components	5
Toilets, Bidets and Urinals	100+
Vent Fan (ceiling)	5 to 10
Vessel Sink (stone, glass, porcelain, copper)	5 to 20+
Water Heater (conventional)	6 to 12
Water Line (copper)	50
Water Line (plastic)	50
Well Pump	15
Water Softener	20
Whirlpool Tub	20 to 50

 

Appliance Systems Inspection 

Your A-Pro Rockhill Home Inspectors  inspector visually inspects and operates the home’s major built-in appliances. Reports include any deficiencies in the operation of these appliances, as well as the brand and model number (if available) of the listed appliances:

• Dishwasher
• Food Waste Disposer
• Range Exhaust Vent
• Range, Cooktop, Oven
• Microwave Oven
• Mechanical Exhaust Vent
• Garage Door Operator
• Doorbell and Chimes
• Dryer Vent

LIFE EXPECTANCY – APPLIANCES	YEARS
Air Conditioner (window)	5 to 7
Compactor (trash)	6
Dehumidifier	8
Dishwasher	9
Disposal (food waste)	12
Dryer Vent (plastic)	5
Dryer Vent (steel)	20
Dryer (clothes)	13
Exhaust Fans	10
Freezer	10 to 20
Gas Oven	10 to 18
Hand Dryer	10 to 12
Humidifier (portable)	8
Microwave Oven	9
Range/Oven Hood	14
Electric Range	13 to 15
Gas Range	15 to 17
Refrigerator	9 to 13
Swamp Cooler	5 to 15
Washing Machine	5 to 15
Whole-House Vacuum System	20