Service
Skirting
Skirting closes in the crawl space. Done right it protects what is under there. Done wrong on a badly drained site, it seals moisture in.
Skirting cannot fix drainage
This is the one thing worth understanding before choosing a material. Skirting encloses the area under the home. If water reaches that area, enclosing it traps humidity against the frame, the insulation and the ductwork.
Damage that shows up as failed skirting is usually a grade problem underneath. Replacing the skirting without fixing the grade buys a couple of years at most. Pad and drainage.
Ventilation and vapor barrier
An enclosed crawl space needs ventilation proportional to its area, distributed so air actually moves through rather than stagnating in corners. A ground vapor barrier limits how much moisture rises out of the soil in the first place.
Ventilation, vapor barrier and site drainage work as one system. Getting two right and one wrong still gives you a moisture problem.
Materials
Vinyl is the common choice — least expensive, quick to install, and the easiest to damage. Insulated panels cost more and hold up better against impact. Masonry and simulated masonry look permanent and carry the highest cost, and on a site that moves they will show cracking that vinyl would have absorbed.
On a site that is properly drained and a home that is properly anchored, the durable materials are worth it. On a site that still moves, spend the money on the ground first.
Access
You need real access to the crawl space, sized and located so a person can get to the plumbing, the ductwork and the pier line. Access panels that are too small or in the wrong place turn every future repair into a demolition job. Utility connections also have to remain reachable.
Common questions
Do I have to have skirting?
In most cases yes — local requirements, lenders and insurers commonly expect the crawl space enclosed, and it protects plumbing from freezing.
Can I skirt over a site that holds water?
You can, but you should not. Enclosing a wet crawl space accelerates damage to the frame and the floor system. Fix the grade first.
How many vents do I need?
Ventilation is calculated from the enclosed area and has to be distributed for actual airflow, not just totaled up. It also depends on whether a ground vapor barrier is installed.
Is masonry skirting worth it?
On a well-drained site with a properly anchored home, it holds up well and looks permanent. On a site that still moves, it will crack. Ground first, finish second.
Skirting, done on a site that drains
We will tell you honestly whether your site is ready for it, and fix the grade first if it is not.