Roofing Company

Low-E™ Therma-Sheet Insulation

An ICC-ES certified stand-alone roofing underlayment.

Low-E™ Therma-Sheet Insulation has always offered the benefits of Low-E™ – an industry-leading thermal and moisture barrier - to the roofing industry. Now, Therma-Sheet has earned certification by the International Code Council Evaluation Service (ICC-ES), meaning Therma-Sheet meets all requirements of a stand-alone roofing underlayment for the building industry. Because Therma-Sheet can now be used as a single underlayment product rather than part of a ‘sandwich’ of products, it offers a more affordable means of energy efficiency to homeowners, and reduces installation time and required materials.

About Low-E™ Therma-Sheet

Therma-Sheet is a 99% pure polished aluminum facing heat laminated to a closed cell foam core. It provides excellent thermal and moisture protection under metal roofing, stone coated steel, clay tile and composite shingles. With an airspace, beneath metal roofing, Therma-Sheet reflects 97% of radiant heat. Without an airspace, beneath composit shingles, Therma-Sheet provides an excellent thermal break that, without reflectivity, still lowers the temperture, below your roof deck 8-12 degrees. Therma-Sheet reflects up to 97% of the radiant heat that is normally transferred into the attic by super-heated roofing materials, significantly reducing attic heat gain. Conversely, Therma-Sheet prevents heat loss through the attic during colder months, all of which reduces heating and cooling costs for homeowners.

Some of Therma-Sheet’s other benefits include:

Versatility: Therma-Sheet is available in both 1/4” and 1/8” thicknesses, and provides an excellent thermal and moisture barrier under metal roofing, stone coated steel, concrete, clay tile, composite shingles and more.
Lightweight: 500 square feet weighs just 18 lbs.
Easy to handle:Therma-Sheet is flexible, non-toxic and easy to cut and install.
Seals around fasteners: Provides a more thorough vapor and moisture barrier.
Durable: Can be left exposed when "drying out" time is needed.
Separate from the pack: Offers an efficient, affordable energy upgrade to roofing systems that most products are unable to match.
Aids in Design Can be used as an alternative in cool roof design.

PRODUCT NAME: Low-E™ Therma-Sheet

PRODUCT DIMENSIONS & DESCRIPTIONS: Double-sided scrimmed aluminum foil laminated to polyethylene foam (1/8”, 7/32”).
WIDTH: 4’ LENGTH: 125’ (standard with 4” overlapping flange)
R-VALUE: R-9 downward heat flow only (With 1.5” airspace)
CORE MATERIAL: Polyethylene
FACING: 99.4% Polished Aluminum
PERM RATING: ASTM E - 96 0.008/li>