Protect Your Property From Water DamageWater 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 indoor air quality. The best way to protect against this potential loss is to ensure that the building components which enclose the structure, known as the building envelope, are water-resistant. Also, you will want to ensure that manufacturing processes, if present, do not allow excess water to accumulate. Finally, make sure that the plumbing and ventilation systems, which can be quite complicated in buildings, operate efficiently and are well-maintained. This article provides some basic steps for identifying and eliminating potentially damaging excess moisture.
 
Identify and Repair All Leaks and Cracks 
 
The following are common building-related sources of water intrusion:

• windows and doors:Check for leaks around your windows, storefront systems and doors. 
• roof: Improper drainage systems and roof sloping reduce roof life and become a primary source of moisture intrusion. Leaks are also common around vents for exhaust or plumbing, rooftop air-conditioning units, or other specialized equipment. 
• foundation and exterior walls: Seal any cracks and holes in exterior walls, joints and foundations. These often develop as a naturally occurring byproduct of differential soil settlement. 
• plumbing: Check for leaking plumbing fixtures, dripping pipes (including fire sprinkler systems), clogged drains (both interior and exterior), defective water drainage systems and damaged manufacturing equipment. 
• ventilation, heating and air conditioning (HVAC) systems:Numerous types, some very sophisticated, are a crucial component to maintaining a healthy, comfortable work environment. They are comprised of a number of components (including chilled water piping and condensation drains) that can directly contribute to excessive moisture in the work environment. In addition, in humid climates, one of the functions of the system is to reduce the ambient air moisture level (relative humidity) throughout the building. An improperly operating HVAC system will not perform this function.

Prevent Water Intrusion Through Good Inspection and Maintenance Programs
 
Hire a qualified InterNACHI inspector to perform an inspection of the following elements of your building to ensure that they remain in good condition:

• flashings and sealants: Flashing, which is typically a thin metal strip found around doors, windows and roofs, are designed to prevent water intrusion in spaces where two building materials come together. Sealants and caulking are specifically applied to prevent moisture intrusion at building joints. Both must be maintained and in good condition. 
• vents: All vents should have appropriate hoods, exhaust to the exterior, and be in good working order. 
• Review the use of manufacturing equipment that may include water for processing or cooling. Ensure wastewater drains adequately away, with no spillage. Check for condensation around hot or cold materials or heat-transfer equipment. 
• HVAC systems are much more complicated in commercial buildings. Check for leakage in supply and return water lines, pumps, air handlers and other components. Drain lines should be clean and clear of obstructions. Ductwork should be insulated to prevent condensation on exterior surfaces. 
• humidity: Except in specialized facilities, the relative humidity in your building should be between 30% and 50%. Condensation on windows, wet stains on walls and ceilings, and musty smells are signs that relative humidity may be high. If you are concerned about the humidity level in your building, consult with a mechanical engineer, contractor or air-conditioning repair company to determine if your HVAC system is properly sized and in good working order. A mechanical engineer should be consulted when renovations to interior spaces take place. 
• moist areas: Regularly clean off, then dry all surfaces where moisture frequently collects. 
• expansion joints: Expansion joints are materials between bricks, pipes and other building materials that absorb movement. If expansion joints are not in good condition, water intrusion can occur. 

Protection From Water Damage

• interior finish materials: Replace drywall, plaster, carpet and stained or water-damaged ceiling tiles. These are not only good evidence of a moisture intrusion problem, but can lead to deterioration of the work environment, if they remain over time. 
• exterior walls: Exterior walls are generally comprised of a number of materials combined into a wall assembly. When properly designed and constructed, the assembly is the first line of defense between water and the interior of your building. It is essential that they be maintained properly (including regular refinishing and/or resealing with the correct materials). 
• storage areas: Storage areas should be kept clean.  Allow air to circulate to prevent potential moisture accumulation.

Act Quickly if  Water Intrusion Occurs
 
Label shut-off valves so that the water supply can be easily closed in the event of a plumbing leak. If water intrusion does occur, you can minimize the damage by addressing the problem quickly and thoroughly. Immediately remove standing water and all moist materials, and consult with a building professional. Should your building become damaged by a catastrophic event, such as fire, flood or storm, take appropriate action to prevent further water damage, once it is safe to do so. This may include boarding up damaged windows, covering a damaged roof with plastic sheeting, and/or removing wet materials and supplies. Fast action on your part will help minimize the time and expense for repairs, resulting in a faster recovery.

Windbreaks
by Nick Gromicko
 
 
Windbreaks are dense rows of trees and shrubs designed to reduce wind speed before it reaches a building.  These landscape elements provide numerous other perks for the homeowner, their neighborhood and the environment.
 
Some of the advantages provided by windbreaks, beyond simple wind mitigation, include the following.

• Many animals rely on windbreaks. Food, shelter from severe weather, nesting sites, and a means of escape cover are all provided by the vegetation that composes a windbreak. For example, the planting of windbreaks during the Dust Bowl of the 1930s is believed to have allowed the expansion of woodland birds and other creatures, such as Mississippi kites and fox squirrels. Birds, in particular, are known to rely on windbreaks for temporary cover during winter storms. Even large mammals, such as white-tailed deer, use windbreaks for cover, food and fawning. Employ a variety of trees and shrubs in your windbreak to create an abundance of different kinds of nuts, seeds and berries, which will, in turn, attract a diversity of wildlife.
• While any vegetation will increase the appeal of an otherwise barren yard, a uniform, well-maintained windbreak can actually increase property values with their pleasing aesthetics. Also, they allow the homeowner to strategically screen out undesirable sights.
• Windbreaks are effective for noise deflection. Windbreaks reduce the infiltration of traffic noise into a property by absorbing and deflecting it with leaves and large branches. In addition, traffic noises will be replaced with the sounds of rustling leaves or the singing of birds that are drawn to the vegetation.
• Windbreaks assist agriculture. According to the University of Florida’s School of Forest Resources and Conservation, "a well-designed windbreak located in the direction of a prevailing wind can increase crop yield, reduce soil erosion, influence microclimate around the crops, increase irrigation efficiency, and control the spread of some pathogens." Erosion, in particular, is a serious threat to farmers.  By clearing trees from the Western regions of Canada and the United States, farmers in the 1930s inadvertently encouraged evaporation and subsequent erosion that were largely responsible for the infamous Dust Bowl. Although rains eventually remedied the situation, farmers learned to place windbreaks around their lands to keep soil moist during droughts.
• Windbreaks provide snow control. A properly placed windbreak will prevent snow drifts in areas such as driveways and building entrances. Valuable time and effort can then be spent on activities other than snow removal.

Windbreaks work either by deflecting the wind up and over a building, thereby forming a protective wind shadow, or by catching it to reduce its speed. And as the windbreak captures the winter wind, so too does the wind chill diminish. For example, if the outside temperature is 12° F (-11° C), a windbreak can reduce a 20-mph wind to 5 mph, and the wind chill will be reduced from -22° F (-30° C) to a more bearable 8° F (-11° C).

The best windbreaks block wind close to the ground by using fast-growing trees and shrubs that have low crowns. Deciduous trees, while they are favored as shade trees during the summer, lose their leaves in cold weather, which makes them less effective than evergreens at stopping the frigid winter wind. The best choices are dense, fat, fast-growing conifers that will mature to a height higher than the roof. These qualities may be found with Norway, white and Colorado blue spruce.

Tips that inspectors can pass on to their clients:

• For maximum protection, plant your windbreak at a distance from your home of three to five times the height of the mature trees. Studies have shown, however, that the effective distance of wind reduction is sometimes as high as 30 times the height of the windbreak, depending on the tree species.
• Do not plant trees too close to the home’s south side, as this will reduce the warmth supplied by the winter sun.
• Arrange windbreaks in multiple rows to increase their effectiveness.
• Do not prune the lower branches of the windbreak, as this will increase the wind speed near the ground.
• Thin the trees and shrubs as they grow to ensure that competition does not jeopardize the health of the windbreak. For instance, you can plant trees 3 feet apart, but then you should remove every second tree when their crowns begin to intersect.
• Incorporate numerous plant species in the windbreak to impede wind from ground level to the treetops. Even non-living yard features, such as walls, fences and raised soils, can be incorporated into a single windbreak.
• Decide which direction the prevailing winds come from in your area so you know where the best places are to plant the windbreak.
• Be careful to not plant large trees too close to the home, as they may fall during a storm, shed leaves or needles on your roof, allow pests to access your roof, or even penetrate your basement walls with their root structure. If you are experiencing any of these conditions, be sure to talk about it with your InterNACHI inspector during your next scheduled inspection.
• Arrange the windbreak in such a way that it will provide a conduit for breezes and desired winds. 

In summary, homeowners can use well-designed windbreaks for many purposes.