LASRE Radon Mitigation / Suspended Slab on Grade

Description: The LASRE (Low Anticipated Swell-Radon Evacuation) floor system provides a radon mitigation system and a low profile concrete slab for low swell conditions where no movement can be tolerated.

Radon Mitigation: The continuous air chambers created by the LASRE forms allow for radon gas to be removed through a connected pipe and vented to the atmosphere. The need for underground pipe and gravel systems is eliminated. The LASRE forms are placed directly on basement sub-grade and take the place of the normal backfill.

Suspended Slab on Grade: The system is useful where native soils have been excavated and re-compacted but swell potentials up to 1.5% remain. A typical slab on grade exerts 44# per square foot of dead load. Since the LASRE slab has a contact area with the sub-grade of only 4.5% the concentrated dead load is 1,054 #. This increased dead load better resists soil heaving and what expansion does occur is contained within the 10” tall air chamber.

About Us

Our mission is to provide the highest quality structural floors possible through innovation in design, efficiency in the field, and volume material purchasing programs. Our goal is to assist the home building community in dealing with the challenges presented by the expansive soils prevalent in Colorado.

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