Looking for product specifications, technical data and other useful information about Napco branded products?

Technical Data

We provide three-part architectural specifications for our products to help home improvement professionals better plan and implement the design and building process.

To view the specs, choose a product from the links provided below.

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Specifications Guide 2018


Napco Brand Specifications

2010 Lead Abatement Legislation Information

Material Safety Data Sheets

Sustainability Certificates

Click the links below to download the Green Circle or Home Innovation Sustainability Certificates.

Green Circle Certificates

Aluminum Gutter & Downspout Systems


Aluminum Siding, Soffit, Fascia, Accessories and Trim Coil


Aluminum Drip Edge


Low Gauge Smooth Acrylic Aluminum Products


Acrylic Coated Aluminum Soffit


Polyester Coated Aluminum Trim Coil


PVC Coated Heavy Duty Aluminum Siding Coil


Acrylic Coated Two Side Aluminum Finish Accessories

Home Innovation Certificates

Premium Insulated Vinyl Siding


Premium Vinyl Siding


Polymer Shingles, Shakes & Rounds


Ply Gem Stone


Aluminum Siding, Soffit, Fascia, Accessories & Trim Coil


Aluminum Gutter & Downspout Systems - Sectional or Seamless


Aluminum Drip Edge

Designed Exterior Studio

Create a customized look for your existing home or new build.

For Pro

Helping builder professionals meet customer expectations and build business.

Home for Good

Build homes across America in partnership with families in need of affordable housing