A laminate shingle's weight will vary a great deal depending on its dimension and thickness. A rough estimate would be that enough shingles to cover 100 square feet would weigh around 240 pounds.
The average bundle of shingles weighs 70 pounds.
85 pounds
298lb
About 80 lbs.
Icambridge weights 80lb
2.7 lbs.
225 LBS
70 pounds
The weight of a sheet of plastic laminate can vary depending on its thickness and size. On average, a standard 4' x 8' sheet of plastic laminate weighs around 4-6 pounds. It's best to check with the manufacturer for the specific weight of the laminate you are using.
Lifetime warranty on Laminate products ...If you purchase it through a home depot store etc..fill out your warranty card. I am almost positive they are lifetime warranty and guarantee...some brands are only 25-30 yr.
Laminates are asphalt based. Laminate just means that you have two layers laminated together to give you more of a "3D" look like cedar shakes. Your laminate shingle is a better shingle over the legacy 3-tab shingle. For the reason that it's all one, solid shingle. Less likely to lift in high wind. Plus, your higher life shingles are generally laminate style shingles(30yr, 40yr, & 50yr).
It weighs 3 Ibs per one square footage of asphalt shingle