Lightweight Insulating Concrete Systems

The NVS mix is a 1:3.5 ratio of Portland cement volume to NVS Concrete Aggregate volume. NVS is engineered for use over non-venting substrates and in reroofing and re-cover applications. Because of its higher compressive and tensile strengths, NVS requires only a 1-inch minimum thickness over the top of the Insulperm Insulation Board. Click on a selection below for detailed information on the NVS System.

Commercial Product Data Sheets

Material Safety Data Sheets

Guide Specifications


Vertical Load:

Vertical Load
Downward Loading Properties for Corrugated Metal Designs-Insulcel System
Downward Loading Properties for Corrugated Metal Designs-ZIC System

Diaphragm Design:

Diaphragm Design

Metal Deck Design:

Metal Deck Design

Acoustical Values:

Acoustic Values
Riverbank Acoustical Laboratories Report, ETL Test Laboratories Report

Thermal Values:

Thermal Values

Building Codes:

Legacy Report
Dade NOA

UL Approvals:

UL Approvals
Table 1 - Fire Resistant Rating
UL P921 Roof Assembly
UL Roof Deck Construction 110

FM Approvals:

FM Approvals



Lightweight Insulating Concrete Systems

Siplast Lightweight Insulating Concrete Systems combine the unique properties of lightweight insulating concrete and Insulperm premium expanded polystyrene foam insulation board. Siplast Lightweight Insulating Concrete is available in four mix designs: ZIC, NVS, Insulcel, and Zonocel. The four designs represent a range of compressive and tensile strengths, allowing a choice of system based on substrate and specific project circumstances. Each design encapsulates the insulation board in insulating concrete. This process provides fire protection, prevents air infiltration, and bonds the total insulation system to the substrate. Unlike rigid board, Siplast Lightweight Insulating Concrete is reroofable, and therefore a truly sustainable insulation solution.
To learn more about Siplast Lightweight Insulating Concrete Systems, by visiting us today.