Corrugated Metal Panels

Market Suggested Retail Price

$12.00

Target Users (Target Impact Group)

Distributors / Implementing Organizations

Most urban centers have the resources to cut and mold such simple roofing sheets. The rolls of raw steel are often imported.

Manufacturing/Building Method

As one of the most common building materials globally, corrugated metal panels have standard applications and informal, recycled uses. Below are a few notable articles written by practitioners in the field. These articles cover manufacturing and construction methods and the pros and cons of structures built with the product.

• Roofing in Context: The Perfect Slum Blog
• Roofing How To: Alternative Building Blog
• Roofing Discussion + Commentary: Corrugated Metal Roofing Blog

Intellectural Property Type

Open Source

User Provision Model

This product can be purchased directly from manufacturers, distributors, local vendors. International organizations also use them.

Distributions to Date Status

N/A

Design Specifications

A standard sheet is one meter wide and comes in three lengths: 3 meters, 2.5 meters, and 2 meters. Not all are galvanized, and they vary from 27 gauge to 10 gauge. The panels have a corrugated wave profile period of approximately 15cm and a peak to peak amplitude of 5cm. Aligned on roofing structure, overlapping one peak and valley, the product effectively covers 80cm. The corrugation creates a flexible width and rigid length.

Technical Support

N/A

Replacement Components

The rusty panels can be replaced easily when assembled properly.

Lifecycle

As the panels rust and become less effective, they are often consolidated to contribute to the wall, window, door systems, and informal constructions. Non-galvanized sheets are more prone to rust than the galvanized ones.

Manufacturer Specified Performance Parameters

N/A

Vetted Performance Status

N/A

Safety

Typical panels themselves do not present health risks. However, when placed upon low structures with poor ventilation, solar gain can transfer substantial heat to the interior. This can create unfavorable conditions for occupants.

Complementary Technical Systems

Panels are typically paired with framed roofing structures. Roofing nails, with a 1.5cm dia. cap, are typically located on every other peak. Sealing washers are preferred. In warm climates, dropped ceilings are important for both thermal and acoustic (during rains) comfort.

Academic Research and References

Compliance with regulations

Relevant (American) standard: Steel Deck Institute

Other Information

It is important to pair corrugated metal roofing with proper ventilation or a suspended ceiling to minimize solar heat transfer to interior spaces and reduce acoustic transmission when it rains.