Do you recommend an adhesive to secure Fabsorb to the pit walls? Fabsorb can be secured to pit walls by construction adhesive or 3″ duct tape.
Do you recommend placing a plastic sheet over the Fabsorb prior to pouring the concrete? Yes, polyethylene sheeting should be placed over the Fabsorb, and all seams should be taped to prevent concrete seepage into the material.
What do you recommend for a sealant at the top of the pit around the mass? Fabreeka recommends using Sika Type 2CSL or equivalent to seal around the top of the pit and inertia mass.
How does Fabsorb compare to Felt materials? Please see our Fabsorb vs Felt information.