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I need a little help on an Elevation Cert. Please see attached sketch. If you can open. I'm not good at the attachment thing.
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I have an existing building on a stem wall slab. They have added an addition to the left side. The addition is on piers and the area under the addition is wide open.
Two questions, first what diagram number? Second, is that a crawlspace?
Thanks
The HAck
Wouldn't matter about the addition, it's part of the building. I'd use the relevant diagram number for the main structure and note the additional elevation information for ground and finished floor of the addition in the notes section.?ÿ My take from a 5 second look.
Always go with the lowest living floor to be safe and note the higher finished floors in the comment section.?ÿ
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Use the comments to show your logic.
From the diagram, that looks like a crawl space, ie lowest floor.?ÿ If it has a dust cover great.?ÿ If it is dirt, take your best shot and a photo and add it to the comments.?ÿ Last month I had a building with a crawl space & dust cover with a 2" deep trench running around to a sump pump.?ÿ And no, the dust cover was not level.?ÿ I gave them the trench and noted the higher cover and added a photo of the sump and pump with a measurement down.?ÿ I would add the elevation of the addition in the notes.
Realize what they can do with the Elev Cert.?ÿ They can go to the agent and spin some wheels to figure out the least amount of work for the most reduction in flood insurance.?ÿ Move the mechanicals up, excavate the stem wall (if able) and add some vents.?ÿ I had a nod from the state level CFM that in a retrofit we could add pipes (12" ADS or similar) from the basement to daylight to create some flood vents.?ÿ The client decided to live with the insurance rate, so we never designed or filed it to see how FEMA would take it.