cement is not water proof. You will have to either paint or cover the structure with a water proofing membrane...good luck!

Ignacio- DHOME
@Ignacio- DHOME
Artist, woodworker trained in Japanese carpentry and traditional construction for 18 years. Dome Gaia workshop graduate, instructor in Portugal 2018, San Diego 2019, Washington, Baja, and consultant/training/designer for home projects in Mexico (si, hablo Español). I am fully loaded with all tools in the West Coast and willing to travel to other countries with my smaller portable tool set. I can consult, design, problem solve remotely or on site depending on your budget. I can train your crew and or your family in making your dome, saving large costs that's unnecessary with the brick making and stacking. I am capable of all tasks and shine at finishing and design. I also have access to professional artisan builders whom I have formed a guild with, and are interested in alternative sustainable projects- please ask if interested in a particular craft. Thank You for reading my profile...let's build something beautiful!
Sincerely,
Ignacio Acuña
Posts made by Ignacio- DHOME
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RE: Aircrete underground?
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RE: Texas Aircreters?
I'll be in Blanco, Texas in October. Come by and we can discuss your projects, or call me at (415) 939-5237
Ignacio -
RE: DomeGaia/Lava Cave Temple Project on Big Island of Hawaii
Gabe is your man... He's on the Big Island... Contact him through the office.
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RE: Looking for a builder in europe with experience in aircrete european law
I do not know the law but I would love to help in a build....
Ignacio -
RE: Need help in Colorado
@laurengrace Hi Lauren...PLease call me. I have experience in designing and building. I am also an instructor and have particiapated in various projects. I also do traditional carpentry....(415)939-5237
Ignacio -
RE: Cabo San Lucas, Baja California Sur
@CabezonJohn Hi. I can help. I can train your crew and set you up for a build...(415)939-5237
Ignacio -
RE: Builder Needed in Northern CA
Hi SHari!
I live in Sebastopol! I would love to help...I am an instructor for DG and have been a part of 5 builds and a large build. I am also a designer and instructor....call me at (415)939-5237
Ignacio :) -
RE: Builder needed in Northern California
@Shari hi Shari. I live in Sebastopol. I could help you. I'm an instructor and designer. Give a call (415) 939-5237
Ignacio -
RE: Concrete floor
@EnglishChris Use an agregate like rock. You can also try putiing the fiberglass mesh inside the 1" slab. That would do the trick! Goodluck!