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SOPREMA LASTOBOND Shield HT SBS Modified Bitumen Ice & Water Underlayment, 2 Squares per Roll
Regular price $110.00Orders start at $399 — combine any items to reach the minimum. Learn more
SOPREMA LASTOBOND Shield HT SBS Modified Bitumen Ice & Water Underlayment, 2 Squares per Roll
Soprema LASTOBOND Shield HT is a high-temperature SBS-modified bitumen, self-adhesive underlayment for approved steep-slope roof assemblies, supplied in rolls covering 2 squares. Its elastomeric SBS formulation with high-tack self-adhesive delivers premium protection from severe ice dams, making it a top choice under architectural metal roofs and in high-altitude or Alpine regions. One order is one roll.
Key Features:
- High temperature: HT (high temperature) formulation for use in approved steep-slope assemblies.
- Self-adhesive: Proprietary elastomeric SBS-modified bitumen combined with high-tack self-adhesive.
- Ice dam protection: Provides premium protection from severe ice dams.
- Metal roof rated: Suited for installation under architectural metal roofs.
- Alpine use: Recommended for roofing in high altitude and Alpine regions.
- 2 squares per roll: Each roll covers 2 squares of roof area.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Soprema |
| Sell unit | 1 roll, 2 squares |
| Product line | LASTOBOND Shield |
| Available sizes | 2 squares per roll |
| Material | SBS-modified bitumen (elastomeric) with high-tack self-adhesive |
| Type | Ice & water underlayment, high temperature |
| Coverage per unit | 2 squares per roll |
| Application | Self-adhesive, approved steep-slope assemblies |
| Intended use | Steep-slope underlayment, especially under architectural metal roofs and in severe ice dam / high altitude regions |
Coverage & How Much You Need:
One roll covers 2 squares (200 sq ft) of roof area. Size the job by dividing the roof area in squares by 2 and adding waste for laps at eaves, valleys and penetrations per the manufacturer's installation instructions.
Fit and Compatibility:
Designed for use in approved steep-slope assemblies, particularly under architectural metal roofing where the high-temperature formulation resists heat buildup beneath the metal. Use with the Soprema membrane system components specified for the roof assembly.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One roll of LASTOBOND Shield HT underlayment covering 2 squares.
Q: How much area does one roll cover?
A: One roll covers 2 squares, or 200 sq ft of roof area.
Q: Why high temperature?
A: The HT formulation is designed for assemblies such as architectural metal roofs where underlayment temperatures can run high.
Q: Does it protect against ice dams?
A: Yes, it provides premium protection from severe ice dams and is recommended for high altitude and Alpine regions.
Q: How is it installed?
A: It is a high-tack self-adhesive membrane applied to the prepared deck in approved steep-slope assemblies; follow the manufacturer's installation instructions.
Q: Can it be used under any roofing?
A: It is intended for use in approved steep-slope assemblies, with highlighted use under architectural metal roofs.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
LASTOBOND Shield HT is the right pick when metal roofing will heat the deck well above standard shingle temperatures, or when severe ice dam exposure demands a self-adhered membrane at eaves and valleys. Prime porous or questionable substrates if required by the installation instructions and roll the laps firmly for a watertight seal. Estimate rolls from the protected area (eaves, valleys, full coverage per spec) divided by 2 squares per roll, plus 5-10% waste.
Self-adhered underlayment becomes slippery, especially when wet or cold, so wear appropriate roof work footwear and fall protection on steep slopes.
Order Soprema LASTOBOND Shield HT underlayment for premium ice dam protection under your metal roof.
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