I'm considering a DIY project to convert my above-grade deck into a bedroom, or potentially add a two-story addition where the bedroom is on the second floor and the first floor becomes a den or living room. My main question is about what kind of foundation I'll need. I've done a lot of work with post holes, so concrete piers seem like a good option to me. However, since I'm located in northern New England, I want to ensure insulation won't be an issue. I'm open to other foundation suggestions too, especially since budget is a concern and I don't really need more basement space. The house is from 1920 and sits on a cinder block basement. Thanks for any advice!
3 Answers
Absolutely, you can build on piers. However, I’d really suggest considering a full basement or at least a crawlspace for better insulation options. Since pier and beam can be tough to insulate, it might lead to cold drafts and could attract critters. Just something to think about!
You can definitely use concrete piers for your addition! Just make sure to install concrete footings around the edges that meet your local building codes for depth and width. You might need concrete tubes reaching up to the floor of the second story as well. Make sure to check your local regulations—they’ll tell you how many piers you need and what size is required. Insulation will be key too; just ensure the bottom of the second floor is sealed off and airtight to keep the warmth in!
Yes, you can go with piers, but often you'll need a full foundation wall around the perimeter with piers strategically placed. It's best to consult with an engineer or architect who can design a solution tailored to your needs. They can also help you navigate the local building codes, which might have guidelines or pamphlets with basic requirements for your project.
Thanks for the advice! I’ll definitely look into contacting an engineer for the best design.