Leveling the gravel

Boy it has been busy. Time to catch up with the latest basement floor development.

I have the aggregated base with the recycled concrete in place. The next layer atop the gravel is the insulation.




I purchased salvaged rigid foam board insulation a while ago. In order to install it effectively, I need to level out the gravel base. If not the foam board may break and crack under the weight of the concrete at the uneven spots.

I originally had planned to add a leveling layer with 3/8 inch choke stone atop the gravel base. But it turned out that I can screen and level the ¾ inch base without a choke layer.

Once I compact the ¾ inch gravel base it will be nice and smooth and ready to receive the insulation. And – I saved money by not using the choke stone!

About Marcus de la fleur

Marcus is a Registered Landscape Architect with a horticultural degree from the School of Horticulture at the Royal Botanic Gardens, Kew, and a Masters in Landscape Architecture from the University of Sheffield, UK. He developed a landscape based sustainable pilot project at 168 Elm Ave. in 2002, and has expanded his skill set to building science. Starting in 2009, Marcus applied the newly acquired expertise to the deep energy retrofit of his 100+ year old home in Chicago.

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