Article Side

Online Article Directory!

Hello Guest! Login or Register to submit articles!

Vented Crawlspaces vs. Un-vented Crawlspaces

By Ethen Hunt Subscribe to RSS | March 3rd 2012 | Views:
loading
 
  



There has been much talk about lately about vented crawl spaces vs. un-vented crawl spaces. The popular opinion in the past has been that foundation crawlspace vents would allow for air movement inside the crawlspace that would help keep the crawlspace dry and help stop mold development.

In recent years view has changed and study have been conducted that have determined that un-vented crawlspaces are extra beneficial in preventing moisture buildup and mold growth then vented crawlspaces. The interior of the vented crawlspace is subjected to the outside environment and humidity. For example if it’s in the summer time and there is high moisture the hot moist air will enter the crawlspace and elevate moisture levels inside. In the colder months cold air enters the crawlspace and makes the heating system less efficient and can make for cold flooring. Not to mention possible plumbing leakage issues that can arise with freezing pipes.

In my view the un-vented crawlspace has a lot of merit and really makes sense in most climates. Where un-vented crawlspace may not make sense are in very cold climates and for areas that have a naturally happening high water table. For most areas un-vented crawlspaces are the way to go. Many new homes now have been built with un- vented crawl spaces and many more existing homes are in the process of being transformed.

To change the crawlspace from being vented to un-vented is a development, but one that can be very beneficial throughout the life of the home and contribute to the better health of the occupants. The first step is to install an adequate vapor barrier on the crawlspace floor particularly if the floor is a dirt floor. The setting up of a fixed vapor barrier that runs the entire area of the floor and 2 feet up the foundation walls is required. There must be not any holes, rips or tears, any areas that are compromised will negate the effect of having a vapor difficulty.

After that stop the existing crawlspace foundation vents. This should be done in a conduct that tightly seals the vents and does not let any air infiltration through. This is an extremely important step because it will prevent the outside environment and humidity from entering the space. Next the interior crawlspace walls should be properly insulated with a blanket style insulation that is tightly secured to the sill plate and secured at the base of the foundation wall. The blanket filling should extend inward two or three feet toward the center of the crawlspace. The blanket insulation can be secured at the base using 2 x 4 framing members.

In an un-vented crawlspace the ceiling or sub flooring is not insulated. The foundation walls in an un-vented crawlspace are insulated. The goal is to achieve a similar environment to the rest of the house. In effect we are building the crawlspace an extension of the home environment. The next step in converting a vented crawlspace to an un-vented space is to properly situation the crawlspace. This can be done easily if the heating equipment is located inside the space because the installation of a heating register is the only thing that will bring warm or conditioned air to the space. If the heating equipment is located on another floor ducts may have to be installed to bring heated and conditioned air into the crawlspace. This is not essential when the crawlspace is connected to a basement area that is properly conditioned. The conditioned underground room air will circulate into the crawlspace allowing for the same basement environment to exist in the space. If the home is equipped with a non-forced air heating system say for example hot water baseboard heat, the fitting of a venting system that brings the room air into the crawlspace may be a solution in order to help create a positive crawlspace environment.

Humidity control is also very important in any crawlspace. A dehumidifier capable of dehumidifier the entire crawlspace area is necessary. Humidity levels in the crawlspace should be no more than 40%. Managing humidity levels will help control mold growth and moisture.

Of course any of these actions to convert a vented to and un-vented crawlspace assume that there are no water infiltration issues in the space. If there is any water infiltration troubles they need to be corrected first before any of the measures are taken. The installation of crawlspace water controls such as a perimeter drain tied into a sump pump may be required if a high water table exists or if the home is prone to flooding. The interior of the crawlspace walls may also have to be sealed with hydraulic cement in order to help keep moisture to a minimum.

There are many benefits to having an un-vented crawlspace. Although converting a crawlspace from a vented to a conditioned crawlspace can be consummate by a DIY is often time-consuming and challenging to accomplish by oneself. You may want to contract with a sound basement or crawlspace professional in order to accomplish the renovation.

Ethen Hunt - About Author:
Author John writes here about benefits of Un-vented Crawlspaces over Vented Crawlspaces. He is one of the few independent Home Inspectors in New Jersey and Certified NJ Mold Inspector.

Share on Facebook Tweet It Stumbleupon this post This post is delicious !

Article Source:
http://www.articleside.com/home-improvement-articles/vented-crawlspaces-vs-un-vented-crawlspaces.htm

Related Home Improvement Articles Subscribe to RSS

Hardwood Flooring: Enhance the Beauty of home/office with hardwood flooring
Published by Dany on February 13th 2012 | Home Improvement
Hardwood flooring is one of the best element and design to decorate your home and office. Hardwood f...
 
Iron work for your home.
Published by Michael Hawards on June 23rd 2012 | Home Improvement
When choosing any type of feature for the outside of your home it is important to keep in mind the s...
 
Create your dream home with Hillsdale Furniture
Published by Deepak Jain on February 17th 2012 | Home Improvement
Hillsdale furniture is one of the well known furniture companies that offer meticulously designed fu...
 
Legacy Classic Furniture- an awesome addition to your home
Published by Deepak Jain on December 18th 2011 | Home Improvement
Want to decorate your home with classy furniture pieces? Legacy Classic Furniture can help you choos...
 
Display houses: the model new home?
Published by Glen Perry on May 18th 2012 | Home
Why are display houses fast becoming the easy option when it comes to buying a new home? Builders us...
 
Priest Brothers collection of bespoke furniture will provide the focal point in any room in the home
Published by Mary Porter on June 21st 2012 | Home Improvement
If so, then don’t choose generic flat pack Ikea furniture, come to Priest Brothers where we can of...
 
Rodent control Orange County can help you rid your home and property of pests
Published by Thomas Hammond on June 18th 2012 | Home Improvement
Rodent control Orange County, CA. specialists can get rid of intruders, helping you enjoy your summe...
 
Great home furnishings: Net curtains
Published by on June 21st 2012 | Home Improvement
The beauty of net curtains is that they can be used to soften the window which they are hung on and ...
 
Beautify your home with DIY Hardwood Flooring
Published by Andy Flow on July 16th 2012 | Home Improvement
When it comes to designing the floors, carpeting is the best that you can try and if you think that ...
 
Top tips for decorating your home this Christmas
Published by Scotts Of Stow on January 4th 2012 | Home Improvement
Getting your home ready for Christmas is an exciting prospect, especially since it allows you to fle...
 
Add beauty to your home with strand Woven Bamboo flooring
Published by Andy Flow on July 15th 2012 | Home Improvement
There are different kinds of carpeting available these days. You can choose to go for hard plastic o...
 
Beautify your home with some great railings and pergolas
Published by Editor123 on May 23rd 2012 | Home
For pergola installation you have to identify the exact location where you wish to install the pergo...
 
Home Alarm Company,wireless home alarm,wireless home security
Published by Homealarms on July 31st 2012 | Home Improvement
Should spending be done on dogs or wireless electronic vigilance at homes? It is an age old debate. ...
 
UPVC conservatories for a smarter home exterior
Published by Glyn Bill Phelps on April 15th 2012 | Home Improvement
The wide range of upvc conservatories from contemporary to traditional easily suits the home buildin...
 
Mexico Online stores, the first choice for inexpensive and high quality home decors and furniture
Published by Sheryl Novak on June 20th 2012 | Home Improvement
Mexican furniture has always been very popular. The Mexico stores have customers all over the world....
 
Factors affecting home elevator prices
Published by DAY Elevator & Lift on April 2nd 2012 | Home Improvement
Home elevator is the perfect choice to have safe and comfortable access to different floors of your ...
 
Maryland home inspections is done by trained professionals only
Published by Jeff Styers on April 20th 2012 | Home Improvement
Maryland home inspections offer reliable consultancy services which include giving you a real analys...
 
Improve hygiene at home using a Hand Sanitizer
Published by James Blee on August 23rd 2012 | Home
Go to visit a friend or a relative in hospital and you’ll spot a Hand Sanitizer at the entrance to...
 
Wynwood furniture gives a fresh aura to your home
Published by Deepak Jain on January 14th 2012 | Home Improvement
Want to create a beautiful bedroom, a stylish home office or a fabulous living room? Wynwood furnitu...
 
How you can choose right builders for home extension
Published by Wade Manas on July 3rd 2012 | Home Improvement
When you are looking for some qualified builders and loft conversion experts you are to find certifi...