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Stop Mold Growth

stop mold growth

Here's an example of some excellent chimney flashing and mortar joints that prevent water from entering a home. The water would create severe mold and rot issues in the attic and roof framing. Copyright 2017 Tim Carter

Stop Mold Growth TIPS

  • Water is the primary source of mold growth
  • Do whatever is necessary to keep all surfaces inside dry
  • WATCH mold growth video below
  • Use Stain Solver oxygen bleach to clean up mold and remove spores
  • CLICK HERE to Get Tim's FREE & FUNNY Newsletter

DEAR TIM: There's been so much news lately about mold that I am very concerned about what might happen to my family and myself in my new home. When I was growing up, mold was never and issue.

What is different now? Why is mold such a problem with newer homes?

Older homes seem to be somewhat immune.

How do you STOP mold growth?

Chad G., Birmingham, AL

DEAR CHAD: As much as I hate to say it, I think the mold problem is just starting to raise its ugly head.

Poor Building Practices

For many years I have witnessed building construction practices that, in my opinion, contribute to severe mold growth and subsequent structural failure from wood rot. The problems can be traced to several things.

Water Vapor & Condensation

First and foremost among them, many modern builders simply do not understand the dynamics of water vapor, condensation, ventilation and exterior moisture protection.

In the years ahead, I predict that mold discovery and mold related issues will reach epidemic proportions in recently built homes.

Free & Fast Bids

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No Old Mold

Let's discuss the older home you grew up in and the thousands of older homes that are still occupied and in excellent condition in your community and others around the USA.

Older homes simply were not built as tightly as the homes of today. The weatherstripping around doors and windows was poor or non-existent.

Many homes had little or no wall insulation. The houses were drafty.

Cheap Fuel

Inexpensive heating fuel allowed these building practices to exist. Residential central air conditioning had yet to be invented. Builders understood the importance of tar paper beneath wood siding.

Brick structures were two or often three courses thick. Indoor humidity in the winter time was very low.

Why Mold Grows

Mold and mildew require just three things to form and grow:

  • mold spores
  • food
  • water

It's virtually impossible to eliminate the first two in the list. Mold spores are everywhere. Thousands or hundreds of thousands are in your home.

Food for mold is everywhere. Dust, sugars, dirt, wood, paper, fabric, are all food sources for mold.

But you can stop WATER. If no water is in contact with the spores and food, there's NO MOLD.

Stop Mold Video

Watch this short video. He explains what I just mentioned above.

Air Movement

Because of these factors and several more, water that triggers mold growth didn't collect inside of wall cavities, on interior wall surfaces and in attic spaces. The drafty nature of the construction allowed the water to rapidly evaporate into the atmosphere.

Mold most certainly did grow, but only in places where water leakage had become a chronic problem.

Energy Crisis Chaos

The energy crisis of the 1970s turned the residential construction industry on its ear. There was a rush to seal air leaks in houses and improve the weatherstripping on doors and windows.

But many didn't think about the secondary long-term effects of installing many of the new energy products.

Vapor Barriers Trap Water

Vapor barriers in exterior walls became a building code requirement. In many areas of the nation, forced air heating and central air conditioning with its necessary duct work replaced traditional hot water or steam radiant heating systems.

Humidifiers Add Water!

Along with the duct work came whole house humidifiers. Humidifiers are a good thing, but if not operated properly, they can become mold's best friend.

New Builders - No Training

The rapid growth in the overall population created a housing boom. This led to an influx of builders and sub-contractors into the residential housing industry that had little or no formal training.

CLICK HERE to get FREE & FAST BIDS from local mold control experts.

Doing It Wrong For Decades

These individuals, without knowing it, started a trend of poor building that was, and continues to be, unknowingly passed on to subsequent builders and sub contractors. Just because an individual has been doing something for 20 or 25 years doesn't mean it is right!

Caulk Is Not A Permanent Fix

For example, go back in time and you would never see a roofer caulk metal flashing in place. Sure, modern caulks are a far cry better than old brittle butyl caulks, but they can and do break down over time.

On the other hand, 40-pound tin flashing embedded 3/4 inch deep into a mortar joint has been known to last 70 years or more. It's hard to get tin-coated steel now, so opt for 1/32-inch-thick sheet lead.

Tar Paper Works

Old builders discovered well over 100 years ago that overlapping layers of ordinary 15 pound tar paper stopped rain water and snow melt from touching vital wall sheathing and wood framing members.

Air Infiltration Barriers

Today we have modern air and water infiltration barriers, but many houses are built without this vital secondary moisture protection. Wind-driven rain can and will get behind all types of siding.

It can also penetrate the single layer of brick veneer that so many homeowners think is waterproof.

Builder Must Understand Water

To stop mold growth, your builder must be well educated and be able to demonstrate a knowledge of how to use modern building materials in such a way that water does not condense within wall cavities and attic spaces.

Building Code = Minimum Standards

He needs to build your home to standards that exceed what the building code states. The building code is a wonderful set of guidelines but many code officials will agree that is a set of minimum standards.

If he does not agree with this point, it is time to re-open the bidding process on your new home.

Mold Removal

If you have mold growing on a surface, it can be removed by using different types of bleaches. Not all bleaches are the same.

The most common bleach that most people use is chlorine bleach. It's a liquid purchased at just about any grocery store. The chemical name for chlorine bleach is sodium hypochlorite.

CLICK HERE to get FREE & FAST BIDS from local mold control experts.

Toxic Fumes

Chlorine bleach is a very effective mildew and mold killer, but its fumes can bother some people. Mixing a 50/50 solution of chlorine bleach and water is often all you need to do to make a powerful solution.

Spray it on the mold and mildew and let it sit for several minutes. Scrub it with soap and water and then rinse.

Oxygen Bleach

Stain Solver is MADE in the USA with USA ingredients that are food-grade quality. CLICK THE IMAGE to order some NOW.

If you want a less toxic bleach, you may want Stain Solver Oxygen bleach. Oxygen bleach is a powder you mix with water.

Stain Solver produces no fumes and it also does a good job or removing mold and mildew, but it doesn't do it quite as fast as chlorine bleach.

The Oxygen bleach solution is also safe for any vegetation and nearby plants should you be working with it outdoors.

Message from Tim:

Years ago while researching a column about cleaning decks, I discovered the wonders of Oxygen Bleach. It is perhaps the 'greenest' cleaner I know of as it uses oxygen ions to break apart stains, dirt and odor molecules. There are no harsh chemicals, and it works on just about anything that is water washable.

I decided to create my own special blend using ingredients made in the USA. In fact, the raw materials in the active ingredient are food-grade quality registered with the FDA. I call my product Stain Solver. I urge you to use it to help with your cleaning project. You will be amazed at the results!

CLICK HERE to get FREE & FAST BIDS from local mold control experts.


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