Deep Corrugated Sheets | GLT Products

Deep Corrugated Sheets

Deep corrugated sheets provide protection for insulated equipment, towers, vessels and tanks with outside diameters of 8' or more. They are available in Aluminum, Stainless Steel and Painted Aluminum with Aluminum as the most popular recommended for projects.

Aluminum Deep Corrugated Sheets are available in the following thickenesses: .016", .020", .024" ,.032" and .040".

Stainless Steel Deep Corrugated Sheets can be supplied in .010", .016", .020", and heavier thicknesses.

Deep Corrugated Sheets are available in 1-1/4" (30mm) and 2-1/2" (64mm) corrugations. The 1-1/4 corrugations have a depth of 1/4", and the 2-1/2" corrugations have a depth of 5/8". They are available in a smooth finish, painted, or stucco embossed pattern. They are specifically designed for weather-proofing insulation on vertical tanks and vessels, as well as providing mechanical abuse protection for the insulation.

Aluminum Deep Corrugated Sheets are supplied in alloys conforming to ASTM B-209 designation, and Stainless is supplied in Type 304 or Type 316 alloy. Installation procedures are available in the National Commercial and Industrial Insulation Standards, published by the Midwest Insulation Contractors Association and endorsed by the National Insulation Association.


The metal used to fabricate Deep Corrugated Sheets must be selected for the specific environmental requirements.

  • Chemical Plants and Refineries: Distillation columns, tank farms, fractionation units, cokers and ethylene production units.
  • Paper Mills: Chemical storage tanks, breechings and ducts.
  • Steel Mills: Pickle acid tanks, oxygen production units, fuel oil and tar storage tanks..
  • Miscellaneous: Food processing plant, LPG storage units, LNG storage units, sewage and waste water treatment plants.


National Insulation Association logo
Central States Insulation Association logo
Midwest Insulation Contractors Association Logo
Southeastern Insulation Contractors Association logo
Southwest Insulation Contractors Association logo
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