Posts Tagged ‘crawl space encapsulation virginia beach va’

What is the Result of a Wet Crawl Space?

Saturday, July 17th, 2010
 
 
Part 3 on our Crawl Space Moisture Control series.

 

We now know how the moisture made it’s way into your crawl space. What will happen next?

The first negative result of high moisture will be insulation destruction. Fiberglass insulation will start to “string” or separate from it’s paper backing. It will then fall away from the sub-floor of the home. At this point, your utility bills will start to rise because the insulation can no longer do it’s job. Insulation that has separated from the backing will need to be replaced if the home is to regain it’s efficiency.

The next result will be the formation of non-wood decay fungus or mold. This step actually begins when the insulation starts to string but will become more noticeable the longer the moisture situation remains unresolved. This fungus/mold can cause you to have allergy and/or sinus  problems and  people with asthma might  have more trouble controlling the condition. These fungi don’t destroy the foundation of the home.

Wood decay fungus forms next. This fungus creates enzymes that destroy the wooden foundation of your home. Wood destroying fungus can damage the foundation in as little as a few months. Health related issues are similar to the ones mentioned before.

As the wood is destroyed by the fungus, some subtle signs will start to show around the rest of the home. You may notice that doors are sticking, floors squeaking, cabinets won’t close, or someone falls through the floor (while this has happened, its rare). At this point, we are looking at having to repair the foundation’s wooden components. This can be as simple as providing some extra support  or something more difficult such as lifting the house. The longer the problem persists the more costly the repair.

It’s important to have regular inspections from experienced inspectors. Give us a call at 757-499-1078 if you’d like a free, no obligation crawl space inspection.

Next time: How a crawl space encapsulation corrects the problem, other moisture control solutions, and what not to do.

Where does the moisture in my crawl come from?

Friday, July 16th, 2010

Part 2 of our series on Crawl Space Moisture Control.

 

Where does the moisture in my crawl come from? The answer is typically one or a combination of: humidity, condensation, evaporation, and precipitation. This post will deal with the first three: humidity, condensation, and evaporation.

Crawl Space Moisture Control

Imagine it’s July and you are cutting the grass. You have just made your last cut and your spouse walks out the back door with a big glass of iced tea. When you grab the glass, its wet on the outside. Why? It was dry when it was pulled from the cabinet so why is it wet? Most of us know that it’s from condensation, which was caused by a significant temperature change. The tea is cold and when that hot, humid July air hits the glass it instantly cools. Cold air holds less water so the remainder sticks to the the glass (condensation).

So let’s take that example and imagine your crawl space. It’s still July, your foundation is made of porous block and the vents are open. The hot humid air seeps into the crawl space where there is little sunlight and usually air conditioning ducts. So what happens? The same thing that happened to the glass of iced tea, but now on a much larger and more costly scale. The air condenses as it comes in contact with the cold air conditioning ducts, cool sub-floor, floor joists, and insulation. Now, you have 100′s of gallons of water in a formally dry space and it never rained a drop. You can probably see how this is a problem.

Next time: The effects/problems of a wet crawl space and the remedies.

If you would like an honest, no obligation crawl space inspectionplease call HomePro at 757-499-1078. The inspection is no cost but could save you $1000′s in prevented damage.

What is crawl space encapsulation?

Tuesday, July 6th, 2010

The next few blog posts will be a series that investigates crawl space encapsulation and moisture control services.

    There’s no doubt that if you live in Hampton Roads, you have heard about crawl space encapsulation but might not know exactly what it is. Recently, it has become the go-to solution for crawl space moisture issues. But is it for you?

    Lets start by describing the process. Encapsulation is the process of sealing your crawl space to prevent humid, outside air from entering. The majority of humid air normally enters through vents, the crawl space floor, the foundation wall, and the crawl space door. So to complete an encapsulation these areas have to be addressed. How?

The foundation vents:  A plastic or a Styrofoam type product is most common. These are held in place with a silicone or similar sealant.

The foundation wall:6mm plastic is sufficient here. It is attached to the wall with sealant or fasteners. Some companies recommend Styrofoam on the foundation walls before the plastic. This is an unnecessary expense that won’t significantly increase the effectiveness of the system. Caution: There should be a 6 inch gap between the sill plate and plastic on the foundation wall. This will allow accurate future termite inspections. 

The foundation floor: 6mm plastic also works well here. 6mm will withstand annual termite inspections, occasional plumbing repairs, or any other repair work. Upgrading to 8-10 mm plastic can be a good option but not always necessary. Some companies offer 20mm which is extremely strong. It is also extremely expensive and will add $1000′s in extra and unnecessary costs.  The plastic should cover 100% of the ground, be overlapped by a foot or more, and stapled to the ground.

The crawl space door: If your door fits correctly now, it can probably be reused.  But if it is loose, falling, or in otherwise bad shape you will need it replaced.

Well that’s the what of Crawl Space Encapsulation, next time we will talk about the why.

If you’d like a free moisture inspection give us a call at 757-499-1078 or contact us here moisture control specialist.