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View Full Version : I thought it was code..


Newguy
October 3rd, 2004, 09:11 PM
to place a perimeter drain around new construction? our local HUD got a grant to build a bunch of new houses near me, and they did not put perimeter drains, nor put the sub pumps into the sewer.
They pumped the Sub, out the side of the basement.

so do the codes that apply to those two items, very from city to city, I mean I live in a fairly well populated city.

Thanks For any clarification
newguy

Wgoodrich
October 5th, 2004, 07:17 PM
There are many variables one being local ammendments to the residential building code. Another is class one soils being soil that readily drains to below the crawl space floor. Anther is again local ordinances requiring crawl space drains connected to storm sewer systems within city limits. Another is an exception allowing no drain if seasonal high water table is found to be normally below the crawl floor and if a sump pit is installed, per code rules the pump is not required only the pit so a pump can readily be installed if needed.

Then again it is often the call of hte inspector and soil reports leading that inspector to concern of water table reaching within 6" of the floor joists.

See rule below that leaves this wide open to a variety of conditions the inspector must consider.

COPIED SECTION IRC 2003;

R408.5Finished grade. The finished grade of under-floor sur-
face may be located at the bottom of the footings; however,
where there is evidence that the groundwater table can rise to
within 6 inches (152 mm) of the finished floor at the building
perimeter orwhere there is evidence that the surfacewater does
not readily drain from the building site, the grade in the under-
floor space shall be as high as the outside finished grade, unless
an approved drainage system is provided.

Hope this helps

Wg