1. Consider it a part of the interior of your home.
Your crawlspace most likely has pipes and vents running throughout it. And, the ground will be dirt or rock. You’ll want the entire space insulated and sealed, protecting it from the elements. The floor should have a vapor seal over it, and the exterior walls should be insulated with water-resistant materials, keeping it as dry and warm as possible.
2. Why is insulating the walls better than under the floors?
You want to keep the cold air as far away from the house as possible. If you don’t insulate the walls of the crawlspace, the cold air will by up against the floor, and is more likely to get through the insulation.
3. You want the crawlspace to be airtight.
Condensation forms when air touches cold surfaces. If your crawlspace isn’t sealed on the bottom and the sides, the colder surfaces will get wet, creating the perfect environment for mold to grow.
4. Check for vents.
In the past, it was thought that vents in crawlspaces would help the air to circulate and stay dryer. We now know better. Any vents should be filled with insulation as well.
5. Cold-weather Crawlspaces
In colder climates, water pipes and ducts can also be insulated.
6. You can also put insulation on the floor of your crawlspace.
It’s a good idea to install insulation over the vapor barrier on the floor of the crawlspace for added winter protection.
7. Maintaining your crawlspace will save you money.
Keeping the crawlspace, pipes and ducts warmer will save you money on your utility bills, especially during cold weather.
8. Have your crawlspace inspected yearly.
Once you have created the ideal, dry environment in your crawlspace, you’ll want to maintain its integrity. Things can happen. Rodents and insects can sometimes find their way in and wreak havoc on the insulation and vapor seal. Having it inspected will catch anything before the problem gets worse.
Taking care of your crawlspace is actually a fairly simple process. And, its typically one of those things that you only have to take care of one time, if it’s done right. Whether you do the work yourself or hire someone to do it for you, sealing and insulating your crawlspace will keep your home warmer and save you money at the same time.