Tag Archives: foundation

2015 Update – Residential Code update for foundation anchorage

The following information deals with changes from the 2012 International Residential Code to the 2015 International Residential Code. The 2015 International Residential Code (R403.1.6) now requires anchor bolts to be located within the middle third of the width of the … Continue reading

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Residential Code requirement for footing drains

The Residential Building Code (R405.1) requires footing drains around all foundations that retain earth, and enclose habitable or usable space located below grade.  Several different materials can be used for drains including; drainage tiles, gravel or crushed stone drains, perforated … Continue reading

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Residential Code requirement for crawl space access

The residential code (R408.4) requires access to the crawlspace, either through the floor or a side wall.   The minimum dimensions for the floor access is 18 inches by 24 inches, while the minimum wall dimensions are 16 inches by 24 … Continue reading

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Residential Code requirement for anchor bolt washer

Here is a little more information regarding my last post.  In addition to spacing and size requirements for hold-downs, the code also requires the use of specifically sized washers.  The washers must be used in conjunction with the anchor bolt … Continue reading

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Residential Code requirement for foundation wall hold-downs

The residential building code (R403.1.6) requires sill plates and walls to be anchored to the foundation wall.  This is accomplished by the use of hold-downs embedded in the concrete foundation wall at fixed intervals.  Each bottom plate must be attached … Continue reading

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