SMACNA

Rated 3.95(58) — SMACNA

This simple to use but effective application is provided by the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA). This tool allows engineers, architects, designers, and contractors to easily and accurately estimate the leakage..

Rated 4.50(4) — SMACNA

This app will provide SMACNA compliant options for rectangular duct with dimensions from 1 inch to 120 inches for applications from negative to positive ten inch water gage.The scenarios for the app are limited to joint lengths of 4, 5, and 6 feet. The...