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

Best guidelines to restore teak furniture at your home
Published by Rudy Nail on January 21st 2012 | Home Improvement
One of the main benefits of owning teak furniture is that the process of teak restoration is very mu...
 
Make a Stylish home with Stylish Furniture
Published by Jitender on July 6th 2012 | Home Improvement
if you want to add to the value and décor of your home and office try the contemporary range of fur...
 
Conservatories Surrey a great addition to any home
Published by Mary Porter on July 12th 2012 | Home Improvement
It is the same all over the UK- as soon as the sun comes out, people flock into any patch of sun the...
 
Constructing a family home from floor
Published by Daisy Minae Mizumura on December 12th 2011 | Home Improvement
Træbeklædning is a great technique in getting timber and this Træ beklædning can be of great hel...
 
Pulaski Furniture for your dream home
Published by Deepak Jain on May 8th 2012 | Home Improvement
Pulaski Furniture has made a name for itself from way back in 1955 when the brand was first establis...
 
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 ...
 
Fitted kitchens Bristol – They can really finish off your home
Published by on July 5th 2012 | Home Improvement
This article is aimed at going through a few steps of things that you might want to consider when yo...
 
Things to know about the Air Conditioners setup in home
Published by S.m.azizur Rahman on November 25th 2011 | Home Improvement
Air conditioning machines are the electrical devices, which can be Eco friendly. This statement may ...
 
Keep your home clean with Toronto cleaning service
Published by Andrew on May 17th 2012 | Home Improvement
There are many Toronto maid services or Toronto condo cleaning agencies in Toronto which offer the s...
 
Five useful tips which will help you to choose a care home for your loved one.
Published by Maryam Keon on November 30th 2011 | Home Improvement
Some older people can reach an age where they find some tasks more difficult than they used to when ...
 
Getting Ready for Storm Season with home improvement Fairfax, VA
Published by Roycemighty on December 6th 2011 | Home Improvement
When hurricane season rolls around, Fairfax, VA might not have it as bad as Florida and Louisiana, b...
 
Tiles a valuable option for you home flooring
Published by Glyn Jones on December 11th 2011 | Home Improvement
Tiles can make your home beautiful. You can buy these tiles in different shapes, designs and colors....
 
Fitted wardrobes- Easy way to enhance the beauty of home at affordable rate
Published by David Firman on March 27th 2012 | Home
Fitted wardrobes can compliment your home and it can enhance its overall appearance. Bespoke fitted ...
 
Double Glazing Wolverhampton can make a big difference to your home are you looking for double glazing Wolverhampton?
Published by James Blee on June 16th 2012 | Home
your home then you have made a really wide choice. Not only can double glazing Wolverhampton make y...
 
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...
 
Chic and graceful Kincaid furniture to enhance your home décor
Published by Deepak Jain on February 17th 2012 | Home Improvement
Kincaid Furniture aims to become the leader in the world of solid wood furniture. They also design a...
 
Importance of painting and decorating in home decoration
Published by Painteranddecorator on March 10th 2012 | Home Improvement
Everyone wants to decorate his property in best way available. A personal property includes your hou...
 
For home remodel lighting, go with certified electricians
Published by Glyn Jones on June 27th 2012 | Home
When you are looking for home remodeling and electrical refit you can simply go with the certified e...
 
Why are you looking a very cheap way for keep your home warm?
Published by Addamsmith on June 28th 2012 | Home
If you are living in mountain cabin and there are so much cold so in this condition you suffer the c...
 
Selecting the Right Siding for Your home improvement Fairfax, VA Project
Published by Roycemighty on December 6th 2011 | Home Improvement
Selecting the right siding when calling a siding and roofing contractor Fairfax, VA can be a little ...