Water Stoves

Water stoves, also known as outdoor wood-burning stoves and outdoor wood boilers (OWBs), are freestanding heating units used to heat homes and domestic hot water, hot tubs, swimming pools and greenhouses. Situated outside the building envelope, they typically consist of a water reservoir and firebox, appearing together like a small tool shed with a smokestack. Air […]

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Defensible Space

Defensible space refers to the area surrounding a building that is mitigated to protect it from wildfires. Along with the quality of a building’s roofing material, adequate defensible space is one of the most important factors in determining a building’s ability to survive a wildfire. Inspectors should know enough about defensible space to educate their […]

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Water Heater Expansion Tanks

What is an expansion tank?   An expansion tank is a metal tank connected to a building’s water heating appliance designed to accommodate fluctuations in the volume of a building’s hot water supply system. These fluctuations occur because water expands in volume as it gets hot and loses volume as it cools. Expanding water volume […]

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InterNACHI Water Heater Dating Chart

Use this chart to determine the age of a water heater tank. Manufacturer Trade Names Where to Look How to Decode Example American ACE,American, American Hardware, America’s Best, Apex, Aqua Temp, AquaTherm, Aquamatic, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle,The Earl’s Energy Conservation Water Heater, The Earl’s Energy Saver Plus, Envirotemp, Four Most, Hotmaster, […]

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Water Damage and EIFS

Synthetic Stucco Synthetic stucco is quite different from historic stucco.  Historic stucco is basically a plaster made with water, sand and lime.  While the composition of stucco has changed over time, it has always been applied wet over a brick, stone or wood surface to form the visible outside layer of a wall. Synthetic stucco […]

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Protect Your Property From Water Damage

Water may be essential to life, but, as a destructive force, water can diminish the value of your home or building. Homes as well as commercial buildings can suffer water damage that results in increased maintenance costs, a decrease in the value of the property, lowered productivity, and potential liability associated with a decline in […]

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Wallpaper Inspection

Wallpaper is a material used to cover and decorate interior building walls. It is typically sold in rolls and applied using an adhesive. Wallpaper can be plain (so that it can be painted), textured (such as Anaglypta and vinyl), and with patterned graphics. InterNACHI inspectors should be aware that wallpaper can be used to mask structural […]

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Wildlife Control at Home

Whether you are a home gardener, enjoy landscaping around your home, or just own your own home, there are times when certain species of wildlife can become a nuisance and cause damage to plants, and even greater economic losses. Wildlife damage can occur throughout the year, but the fall and winter months are times when food supplies […]

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Wind Turbines

Wind turbines are structures that capture the wind’s kinetic energy and convert it into electricity. The basic method by which turbines produce electricity is quite simple, and inspectors may want to familiarize themselves with these increasingly popular constructions. Turbine blades are shaped in such a way that wind causes them to rotate, which then makes a chain of […]

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Wind Turbines and Lightning

Wind turbines are tall, isolated towers composed of sensitive electronics, all of which are factors that make lightning a persistent and real threat. A properly installed lightning protection system, however, will intercept the lightning and effectively and safely conduct it to the earth without risking physical destruction to the wind turbine. This issue has become […]

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