ProLam

ProLam is a laminated architectural asphalt shingle from Atlas Roofing for steep-slope roofs in the United States. It is built in the Atlas HP42 wide-format, with oversized shingle dimensions. The laminated shingle has distinct shadow lines and random cuts that give the texture of a multi-layered wood shake shingle.

Within the Atlas range, ProLam is the line with a UL 2218 Class 3 impact rating, an algae-resistant shingle and a 130 mph wind limited warranty. Its data sheet is numbered ATL-267621-00 and dated 10/26.

The HP42 format has a Sweet Spot nailing area and a double FASTAC sealant line. The Class 3 impact rating is validated by PRI.

ProLam uses the HP42 format of 42 inches by 14 inches.

• Length: 42 inches (1066.8 mm)
• Width: 14 inches (355.6 mm)
• Exposure: 6 inches (152.4 mm)
• Shingles per bundle: 18 to 20

Sealant protection tape is placed on the back of each shingle and is not removed before the shingle is applied. Bundles are stored on a flat surface and protected from weather in storage and on the work site.

ProLam carries these ratings:

• UL 790, Class A fire resistance
• UL 2218, Class 3 impact resistance
• UL 2390, Class H wind resistance
• ASTM E108, Class A fire resistance
• ASTM D7158, Class H wind resistance, passed at 150 mph
• ASTM D3161, Class F, tested at 110 mph
• ASTM D6381, uplift resistance
• ASTM D3018, Type 1
• ASTM D3462, as manufactured

The wind limited warranty runs up to 130 mph. The shingle is an algae-resistant shingle (ARS) with a Class 3 impact rating.

ProLam meets AC438 criteria and CAN/CSA-A123.5-M90. It is Florida Building Code approved under FL 16305 and Miami-Dade County Product Control approved.

ProLam is available in 7 colors:

• Black Shadow
• Hickory
• Desert Shake
• Hearthstone
• Weathered Shadow
• Pewter
• Weathered Wood

Color blends vary from shingle to shingle.

The color families are brown, tan, black and gray. Morning Harvest and Chestnut also appear among the colors on the manufacturer's product page, and Hickory and Desert Shake are marked as regional colors there.

ProLam has a Lifetime Limited Warranty and a wind limited warranty up to 130 mph, with coverage requirements set out in the Atlas Roofing Limited Shingle Warranty. Atlas warrants the original owner that the product is free from manufacturing defects that materially affect shingle performance during the protection period named in the warranty, or that cause leaks for the balance of the applicable warranty period.

ProLam is installed on steep slopes like other asphalt shingle roofing in the Atlas range. Atlas publishes warranty installation instructions for ProLam and general 3-part specifications for its shingles. Atlas recommends an Atlas Signature Select Roofing System with components backed by an Atlas warranty.