Exterior or Interior? Choosing the Right Foundation Drainage System

Construction & Contractors Blog

A wet or leaky basement is a major cause for alarm. Not only can the excess moisture ruin your belongings or lead to mold and mildew problems, it can also develop into major foundation damage later as the water works its way into the basement slab walls. The installation of the right drain system can provide a permanent solution to your moisture problems. The following guide can help you decide between an exterior or interior drainage system.

Exterior Drains

Exterior drainage systems, sometimes called French drains, are installed around the perimeter of the foundation. They use a drain tile, which is a special pipe that has small perforations that let water in so it can drain away.

Concerns: Although exterior drains work exceptionally well, they do require a large disruption around a home during installation. Excavation to the base of the foundation is necessary, since the tile must be installed just beneath the exterior footing. This can result in major landscape damage that will need to be repaired. The soil from the excavation is also kept onsite, which can damage landscape areas that aren't affected directly by the excavation itself.

Bottom line: Exterior drains are highly effective, but they can be both expensive and troublesome to install around homes. This makes them a better option for new construction or for homes where other options have not worked.

Interior Drains

Interior drains are very similar to exterior drains, except all the work happens inside. This means there is no need for major excavation. For these drains, a trench is cut through the interior slab around the perimeter of the basement foundation. The perforated drain tile and a layer of crushed stone is then installed into this trench, and then the missing part of the slab is replaced with fresh concrete.

Concerns: An interior system typically only works well when it is used in conjunction with a sump pump, which further routes the excess water away from your home. This may require more ongoing maintenance, but the ease of installation helps offset any future maintenance needs.

Bottom line: Interior systems are often the best choice for existing homes, especially if a high water table or saturated soil is the primary cause of the drainage issues. When opting for this style of system, choose a sump pump that is rated to handle the expected amount of moisture that will go through your drains. Pumps with alarms are even better, because they will alert you if they fail. This can help you avoid a flooding disaster.

For further information about home drainage systems, contact a professional contractor through a website like http://www.rite-waywaterproofing.com.



2 November 2015

Swim into Summer

If you’re looking for a fun way to improve your home and boost your property values, you may want to consider adding a pool to your backyard this summer. You’d be surprised how big a difference this simple addition can make to your home and for your property values. A new pool is a big project however, so you’ll have to do some research before putting one in. I created this blog to help you with that research. Check out different pool construction options, as well as maintenance tips and the accessories that you have to have this summer.