Sometimes underslab plumbing wastes lines run lower than city sewer lines. If that is the case, a waste pump will be needed. Water lines can be run under the slab or in the attic. If underslab , water lines should be protected from damage that can occur during backfill.
PERMINATOR EVOH is a seven-layer co-extruded barrier manufactured from state-of-the-art polyethylene and EVOH resins. Underslab Floor Insulation ROCKWOOL rigid stone wool boards used as a continuous layer of insulation under a concrete slab can provide the thermal efficiency and mechanical properties required as an alternative to rigid foam. It is a high-performance vapor retarder and sub-base course with high compressive strength. It also acts as a capillary break, allowing long-term protection from rising moisture. The Foundation for Below-Grade Moisture Resistance.
Underslab insulation is typically of the polystyrene board type where R-values greater than R-1. Protect Underslab is designed to be compatible with all types of building foundations. Reflective foil insulation, on the other han requires an air space to be effective although some foil products are approved for underslab applications.
HVAC ductwork for over fifty years in both insulated and non-insulated forms. Insulated and non-insulated ductwork is available in, but not limited to, standard sizes 2″ diameter through 144″ diameter.