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By: Ulf Wolf

Water, in large quantities, can be overwhelming. From Noah’s Ark in biblical times, to the Johnstown (Pa.) Flood in 1889, to the 2004 tsunami in the Indian Ocean, water can be as much of a troublesome part as fire. rod hole

But in smaller quantities, water can be good. You glug down a couple of glasses of it every day to stay healthy. You wash your car with a bucket full of it, or a load of clothes with a bit more. waterproofing rochester hills

In even smaller quantities—when it is condensed and diffused, and normally called moisture, it can cause as much heartache as a flood or other act of nature, especially in the construction industry. basement waterproofing michigan

Moisture can be a villain that everyone faces at some point or other.

In a country such as the United States, with many different climates and weather-zones, combating moisture intrusion and subsequent damage calls for unusual products and tactics depending on where in the country the war is being waged.

Part of this article surveys many of AWCI’s contractors to establish widespread use of tactics and products in various areas, but first, let’s review some basics.

Three Water Flavors
Moisture, which is to say water, comes in three different flavors: solid (ice), liquid (water) and gas (vapor).

Most builders have a respectable handle on the solid variety, and—especially in the South—have little or no trouble keeping it out of buildings. Many also have a fairly good handle on the liquid form. If whatever thing is causing headaches nowadays, it is vapor.

Maria Spinu, Ph.D., of DuPont Building Innovation, has made a brilliant livelihood of studying and combating vapors especially, and has this to share about it—and the dew point temperature—in an announcement for one of her 2005 lectures:

“Water exists on earth in three physical states that can undergo reversible phase transformations. Dew point temperature is the onset of the vapor-to-liquid conversion known as condensation.

“Moisture problems in structures are the result of liquid water accumulation within the building enclosure. The causes of liquid water within a building enclosure include liquid water intrusion or condensation of excess water vapor transported by air currents or in the course of diffusion.

“Dew point temperature is the temperature at which the concentration of water vapor reaches its saturation and will condense on cold surfaces to develop droplets of water. We often see condensation on windows or added cool building surfaces. This so-called surface condensation is not much of a problem. However, when condensation occurs within a building assembly (interstitial condensation) it can lead to moisture problems, which scale from building durability and performance, to indoor environmental quality (IEQ).”

Envelope Incursion
The purpose of a building’s envelope is to maintain the internal environment separate—and protected—from external conditions. This includes keeping the cold (or the heat) out and the heat (or the cold) in. Another reason of the envelope is to keep moisture out.

According to the McGraw-Hill Construction’s Continuing Education Center’s course on air barriers (January 2006), “Moisture, when it does enter the building, moves through the envelope as liquid water or as water vapors. The difference between the two physical states of water is the size of the molecular aggregates: liquid water exists as sizeable molecular aggregates (up to 100 molecules at room temperature), while water vapors exist as free molecules. Therefore, the transport mechanisms are different for liquid water and water vapors.”

Liquid Water. The main source of liquid water for above-grade walls is rainfall, which can find its way behind the exterior cladding and so be driven into the building enclosed space by four main forces:

• Gravity, which can draw water through openings and cracks, and into the construction assembly.

• Capillary forces, which act like a sponge sucking water through small cracks and pores. Smaller cracks result in greater capillary forces.

• Rain droplets can pass through openings in the exterior cladding, driven by the thrust of the falling rain.

• The pressure differential can push or suck water through openings and cracks, into the construction assemblage.

Water Vapor. When moisture enters the construction as water vapor, it enters the envelope either by air currents or by vapor diffusion.

For vapor diffusion to occur there has to be mutually a driving force and a passageway. In this case, the driving force is the difference in water vapor concentration (or difference in vapor pressure) across an assembly: Water vapors flow from an area of higher concentration (higher vapor pressure) to an area of lower concentration (lower vapor pressure).

However, looking at the practical side of things, experts estimation that the amount of moisture vapor shifted by air currents can be 100 to 200 times higher than the amount shifted by diffusion, and can account for more than 98 percent of all water vapor advance through the structure envelope.

The air current rule of thumb: Vapor flows from warm (high pressure) to cold (low pressure).

The Vapor Barrier
Keeping the moisture out (and away from insulation, where it could do major damage) is the principle of the vapor barrier. The main design decision is where, exactly, to place it, especially since vapor, reaching a vapor barrier and with nowhere else to go, will eventually accumulate, reach a dew point and turn into fluid water.

Heating or Cooling Climate. In a heating temperature—where a building is heated more days of the year than cooled—the vapor (by the warm-to-cold principle) will prevalently travel toward the exterior. In the cooling climate the opposite it true: Vapor will predominantly travel from outside the envelope toward the inside of the building.

Since barrier membranes are usually placed adjacent to wall insulation, the issue of where, exactly, you place it is determined by the prevalent vapor direction. If you happen to put it incorrectly—i.e., at the far side of insulation—as the vapor travels, condensation is likely to occur inside the insulation and degrade it considerably over time. Fiberglass can lose as much as 70 percent of its insulating properties when wet.

It is therefore crucial to place the barrier at the near side of insulation—as the vapor travels—so that steam hits the barrier ahead of entering insulation.

In a heating climate, that means placing the barrier in between the inside of the building and the insulation; in a cooling climate, between the outside of the building and the insulation.

Who Determines Placement?

When it comes to determining not only the risk for moisture intrusion, but the products—and their specific placement—to guard against it, the architect calls the shots.

As Bill McPherson of Central Ceilings in Massachusetts succinctly put it: “We do not devise, or suggest, solutions. We implement them.”

This sentiment is echoed throughout the country, where it is always up to the designer or the architect to detect and solve potential wetness issues.

But there is one interesting forewarning: According to Pat Arrington of Commercial Enterprises in New Mexico, the contractor license in his state lays the ultimate responsibility for any building problems at the contractor’s feet, whether he followed incorrect design information or not. So, New Mexico contractors, look out.

Gregg Conrad, president of CSW, Inc. in North Carolina, adds to that that if he notices something wrong as far as combating moisture goes, he would “raise a flag. Even though the engineer specifies the system, and we’re only responsible for applying it properly, if there’s an inconsistency in the design we have to make them informed of it.”

An Engineering Observation
Jim Stump is a Portland, Maine–based engineer with Criterium Engineers, a company of consulting engineers with more than 70 offices in North America. His view on moisture problems/solutions is well worth sharing: “Of course, moisture intrusion is always through the building envelope. How that occurs here in Portland, Maine, nevertheless, is different from how it occurs in North Carolina, and certainly unlike from, say, Phoenix, Ariz.

“The vapor barrier needs to be on the warm side of the insulation. That is the basic criteria. So, in the South, where the warm side of the insulation is usually the outside, and you are attempting to cool the inside, the vapor barrier would be in the direction of the outside of the building.

“In northern climates like here, it’s the opposite. The warm side of the building in the wintertime is the inside; the cool side is on the outside, so the vapor barrier should be toward the indoors.

“The difficulty with design comes in climates that are in-between, states like New Mexico or the mid-Atlantic states like Virginia or North Carolina, that you get both.

“The vapor moves from hot to cold, and when it reaches the dew point it will condense, and if that happens to be in the insulation, subsequently you have a problem.

“A critical issue when evaluating a building for moisture solutions is to view the building as an organic whole, and take all aspects into consideration.

“The climate is just one issue. You also have to evaluate airflow, blueprint, specific location—a building on top of a hill will behave quite differently from one down in a valley—the type of heating deployed, the type of cooling used. How much sun does it get? Is it a solar building? All of these things relate to the organic sum total that you need to consider.”

Fiberglass Insulation. As mentioned earlier, fiberglass degrades greatly whilst wet. Why precisely is that?

“Fiberglass insulation,” explains Stump, “relies on air pockets, and whilst it gets wet it loses those air pockets and, therefore, loses its insulation value.”

As much as 70 or 80 percent?

“It’s certainly possible. And I, unhappily, see that phenomenon quite often.”

Wood Framing. Stump has this to offer: “Some designers propose that when it comes to wood-framed walls, you should put a vapor barrier on both the inside and the outside to try to seal the wall.

“My experience is that, although this may look good on paper, in practice—because no barrier is ever 100 percent effective—you’re going to wind up trapping moisture in that wall.

“You have to consider that the wood frame has quite a bit of moisture in it already, even if it is a kiln-dried piece of lumber. Over time, it will lose some of that moisture, and this has to go somewhere. If sealed in, it will eventually reach dew point and condense inside the wall.”

Taking the Country’s Moisture Fighting Pulse
What products are used where? Keeping in mind that the contractor as a rule does not choose, nor recommend, the moisture fighting weapons he deploys, the question becomes as a substitute: Which products does he normally install (as specified by the architect)?

The brand names you would expect to hear are the names that popped out of the mouths of contractors from all over the country; it is their preferences in manufactured goods type that vary.

Gabriel Castillo of Pillar Construction in Virginia likes liquid-spread on membranes, which become part of the substrate. “When the liquid rolled on membrane dries, it hardens to a rubber-like, waterproof membrane, so you know that it will cover and seal well. There are no pores, no holes, no way for moisture to penetrate. … You just roll it on. It’s as if you were to apply a very thick paint.”

Stephen Angell, president of Cape Cod Plastering in Rhode Island, uses “a self-healing, peel-and-stick product, for external cladding.”

Robert Aird of Robert A. Aird, Inc. in Maryland does of lot of exterior insulation and finish systems and sees the gamut when it comes to product names, but he cautions about maintaining the integrity of the entire system: “Some [barriers] can be used with other products, but normally they are only tested and approved to work with their own EIF system.

He goes on to say, “In the last 10 years or so, though most actively over the last 3 or 4 years, we tape all sheeting joints, we spot the screw heads, we seal all penetrations and connections to other materials, and then spread over a liquid-applied barrier over the entire face of the building to create an air- and water-barrier—or a WRB, a weather resistant barrier.”

But in Florida, Eric Boulanger of Boulanger Drywall Corporation does not frequently see liquid applied membranes being applied.

Gerald Roach of Forks Lath & Plaster in North Dakota mostly sees the big brand names, but adds that “it’s also getting more common to do a sprayed-on or trowelled-on moisture barrier over the sheeting, particularly on bigger jobs like the Wal-Marts and motels.”

Glenn Sieber of Easley & Rivers, Inc. in Pennsylvania says, “What we now see more and more of is studs, sheeting, then a spray-on or a trowel-on or a place-and-press membrane for waterproofing—after that a rigid insulation.”

Richard Riley of Simpson Commercial Contracting, Inc. in Alabama: “On the exterior partition substrate we like to use a roller applied barrier, because they’re seamless. On the exterior wall—if we’re worried about moisture—we normally use an elastomeric finish.” Riley adds that all the major brands work.

The moral of this yarn is that if you can smell it, you missed a turn way earlier there, and you’re now facing damage control, literally … which usually means quite a few pounds of cure.

The ounce of prevention is to understand how moisture travels, and how to channel its movement.

Coeur d’Alene, Idaho–based Ulf Wolf writes for the construction trade as Words & Images.

Once constructed correctly and with the appropriate air conditioning and ventilation, a basement must be dry. But many basements are particularly level to dampness because of their poor design and ventilation. flat rock Dankness similar to this is a ideal breeding ground for mold and mildew, specially in basements where old books, magazines, clothing and suitcases are stored. When the humidity level goes over 50%, the water vapor in the air can cause furniture to warp, damp to reduce on walls and floors and promote growth of fungus. west bloomfield It will also accelerate wood rot. For those family members with allergies, a basement dehumidifier is essential to lessen the health risks linked to toxic mold and fungus. rod hole repair

But before you go off to buy a basement dehumidifier, consider taking some time to inspect the cause behind the high humidity, and then repairing the underlying problems.

For example, your basement must ideally be the similar temperature as the balance of your house, and not an isolated cool temperature zone. Try adding weather-stripping to any basement doors and windows. If the basement is uninsulated, you’ll have to weigh the costs of adding insulation against that of running a basement dehumidifier. Buying a basement dehumidifier will expect a slight planning. Know the cubic footage of the basement space that it will be going into. In addition you will need to determine on getting a permanently installed unit versus a convenient dehumidifier. An other shopping spot is to consider are the size of the unit- will it fit in the space you are planning for it? Moreover be aware that some models are noisier than others, so inquire for a demonstration before you buy.

A dehumidifier works on the same attitude that refrigerators and air conditioners do.

They pass the humid air over a bank of cold coils and in the process extract a good portion of the dampness via condensation. This condensation drips off the coils into group pockets inside the dehumidifier. Meanwhile the dry air flow, heated somewhat by the removal of humidity, is directed out of the unit back into the room. Since the dehumidifier is in the basement and out of the way, many people forget that it requires some maintenance. It is important to empty and clean the collection container inside the unit periodically, otherwise it can be prone to bacterial growth. Some companies manufacture basement dehumidifiers which have no inside collection container, but minimally a hose that can be run to a floor drain, and these are a absolute solution to the problem.

Also, be careful to keep an eye on your sump pump. These culprits are by far the biggest problem.

Make sure you get a waterproofer that gives you a transferable 30 year to lifetime warranty. Then, get a written appraisal from them and look through the fine print. Any estimate should include details on every thing the contractor will do, costs, and the amount of time to complete the job. Including installing the rochester hills sump pump.

The type of waterproofing in which a person will need for your basement would depend on the current conditions that your basement is in right at present in addition a study on probable sources of water that could affect your basements. Work with qualified general contractors for this purpose so everyone can be assured of an effective and favorable result for your home improvement project.

In the event that your basement problem is only a single “dampness” problem, this requires a completely different approach. Humidity troubles are common to basements because they are subterranean and “cooler” than upper level locations. Humidity and condensation are attracted to the basements because of the coolish temps. The word condensation refers to the theory that warmer air volumes reduce in size as they enter the less warm basement. When the air volume shrinks, the moisture in that atmosphere collects with each other and forms minute droplets of water. These minute droplets form on cold water pipes, chilly basement floors and surfaces and are absorbed into porous cement, lumber, carpets and furniture. This constant humidity is what helps supply unpleasant smells in the basement. In the event that you want to increase a person’s property value. Water damage is one of the most frequent structural problems that can certainly cause a dwelling to drop in price. A wet cellar or water running in problem can reduce the value of your own house by Ten to 15 pct.

If you have a puddle or find water gathering on the basement floor, be absolutely sure to mop or pump it out entirely within 24 hours to prevent mold from creating a foot-hold. You want to generate a better living environment for your house. Too much humidity and dampness can certainly cause molds and mildew to grow and develop very rapidly. Both of these types of tiny organisms have been associated to increased respiratory diseases and several other health problems. Hiring a basement waterproofing company to repair your basement can put a stop to these problems from affecting your family.

Stuck floats & sump pump failure in the oakland sump pump are the #1 sump trouble. If your float switch is caught, or the pump fails, the pump will not come on and will not hose out the water. This fills the sump, traps water inside the perimeter drains, and traps the water against the foundation surfaces of the building. The results of pump failures can be dramatic and pricey: Foundation wall movement (due to expanding soils), Flooded basement, and Mold growth. Sub-Surface Water Control equals a Perimeter Drain System. Surface water can move along the foundation wall. This particular water is collected by the perimeter drain technique and sent to the actual chesterfield sump pump for release away from the house.

The sump pit pulls out water from the perimeter drains, allowing this water to move away from the foundation. When the level reaches a set height, the sump pump turns on and discharges water away from the home.

Check by using the National Association of Waterproofing and Structural Repair Contractors (NAWSRC)for a contractor. Many contractors are usually members of this organization. In addition, they also have a good deal of information on basement waterproofing like a washington township sump pump install.

One of the most pertinent problems in which home owners experience with their basement is with respect to water damage. Basements, due to their particular special location in any home and in largely cases underground, are usually basically surrounded by open ground or soil from all directions. Rains and exterior moisture can dampen that soil, and in turn can leak through the walls of the basements causing potential water damage and all of the other problems associated with it. This is why a basement remodeling project should initially and foremost consider suitable waterproofing before trying to transform this room to some other useful purposes. Don’t forget to get do a utica sump pump to keep things dry.

Often without a sterling heights sump pump installation, basements seem to be notorious for being wet and musty. If there is an existing leakage problem, the cause must be discovered and restored. Sealant paints are available for most basement applications, working to prevent wetness from seeping inside the basement walls.

If you have a spill or find water pooling on the basement floor, be certain to mop or pump it away completely within just Twenty four hours to prevent mold from establishing some sort of foot-hold. Commence the mold removal by locating the origin of mold growth. It is a well known fact that molds blossom because of the presence of the a pair of most vital elements that are vital in its survival – moisture and humidity. Take out these sources and you are able to stop the scattering of the actual mold. Repair all the leaks coming from the roof, pipes or overflowing kitchen sink. If the leakages are not given any repair the mold will merely continue to mature and proliferate. It is also advised to check around on areas of possible mold growth such as the basement underneath the carpets along with back walls. Mildew and its health effects towards our bodies have been well chronicled.There are unique relations between breathing diseases and getting exposed to mildew.People currently suffering from constant obstructive pulmonary disease are likely to create lung infections if exposed to mildew. And if the individuals with asthma could also develop a severe asthma attack if exposed to mold.

When purchasing a home, check closely at the sump pump and drainage system, or even ask your building inspector to concentrate on these areas in a separate walk through in the home. The cost of an examination will be well worth the peace of mind in knowing that these components are running and set up properly. It is essential to check your sump pump motor regularly to make sure that it is in proper working condition. Remove the cover and slowly pour water into the sump tank. Watch for the “float” to climb and trigger the pump. Once the pump motor is engaged, your water level will quickly reduce and the float will shut off the pump.

Stuck floats & pump motor failure are the #1 sump problems. Whenever your float is stuck, or the pump doesn’t work, the sump will not come on and will never discharge that water. This fills the sump, traps water in the perimeter drains, and traps water towards the foundation walls of the home. Plumbers have long been the go-to contractors to tackle sump pump installations, but while they may claim to have the knowhow and skills needed, their installation jobs can occasionally leave much to be desired. These types of installations can be untidy, ineffective and hastily done. For a truly expert, clean, and reliable sump pump installation anyone can trust a basement waterproofing contractor to do it right.

One of the worst things that could happen to your basement is it getting flooded. A flooded basement will destroy your possessions and make your life quite difficult. To prevent this from happening, it essential to learn how basement flooding happens and how you can go about preventing it. This will help keep you and your possessions safe.

First, figure out if your basement is open to flooding and moisture damage. If your area is high above the water level in a dry climate, you probably won’t have any issues. However, if you are in a wet climate, or near the water level, you may have some issues with basement flooding.

One of the most common ways of preventing basement flooding is by means of a sump pump. These are pumps that take any water that is accumulating beneath the floor of the basement and pumps it out so that your basement does not flood.

A sump pump is an awesome thing, but what happens when they break? Depending on how fast water accumulates in your basement, you will have a flood if the problem is not fixed in a certain time span. In order to prevent a sump pump failure from flooding your place, consider a backup sump pump. These can either be powered by a battery or by your water supply. Either way, get one to stop your basement from getting drenched.

One other way to keep your basement dry is to waterproof it completely. By stopping rainwater and runoff from entering your basement, you can prevent many instances of flooding. To accomplish this, you need to find all of the ways water can enter your basement, and seal them off. This is hard to do, but there are contractors available who can help you out if needed.

In fact, there are contractors that can help you with most of all of the tasks needed to help keep your basement flood free. Be sure to look around and see if any of them are right for you.

So, I think you can see that keeping water out of your basement isn’t an easy task. There are contractors out there to help you complete many of these steps, but much of it can be done yourself. Best of luck with protecting your basement.