Yes, space blanket insulation can significantly improve thermal performance for 150mm builds and retrofits. This guide highlights five effective products best suited for crawl spaces, attics, tents, and emergency gear when your thickness target is around 150mm. Each option is evaluated for reflective barriers, moisture control, ease of installation, and durability. Read on to find which insulation roll or blanket best fits your space and climate, along with practical buying tips and common questions.
| Product | Best For | Notes |
|---|---|---|
| SmartSHIELD -5mm 16”X50ft | Radiant barrier emphasis | R17 foil/foil with vapor barrier |
| Viper 2-in-1 Crawl Space Barrier | Crawl spaces and basements | Insul-Barrier with vapor and radiant layers |
| Arcturus XL Heavy Duty Survival Blanket | Emergency kits and outdoor use | Multi-layer, reflective and waterproof |
| Arcturus Insulated Tarp | Outdoor shelters and camping gear | 3-layer design with Mylar reflection |
| SmartSHIELD -3mm 48x100Ft | Large reflective barrier | Engineered foil, vapor barrier |
SmartSHIELD -5mm Reflective Insulation Roll
The SmartSHIELD roll provides a radiant barrier with a foam core, reflecting up to 95% of radiant energy. It also serves as a vapor barrier to reduce condensation. Best for spaces needing strong reflective performance, such as attics or crawl spaces with humidity concerns. Choose this for high radiant energy suppression and reliability in moisture-prone environments. A potential limitation is its thinner profile (5mm) compared to heavier rolls, which may affect handling in very large installations.
Who this is best for and why selected
Best for homeowners targeting radiant heat control in compact crawl spaces or attic access where moisture risk exists. The R17 rating supports moderate insulation performance while the vapor barrier helps manage humidity.
Cautions or limitations
Ensure proper installation to avoid gaps that reduce effectiveness. The thinner profile may require careful fitting around irregular shapes.
Viper 2-in-1 Crawl Space Insulation Roll
Viper’s Insul-Barrier combines insulation with a vapor barrier in a single roll, designed for crawl spaces, attics, and basements. It emphasizes moisture prevention and thermal performance, with a lightweight, trim-friendly profile. Best for spaces where moisture ingress must be blocked and installation in tight areas matters. A possible limitation is the absence of explicit thickness data in the features; confirm compatibility with your 150mm target before purchasing.
Who this is best for and why selected
Best for crawl spaces and basements where moisture and radon control are priorities, and where easy handling in tight spaces matters.
Cautions or limitations
Check local code requirements for vapor barriers and ensure the material’s thickness aligns with your 150mm planning.
Arcturus XL Heavy Duty Survival Blanket
Arcturus XL blends Mylar reflective material with waterproof polypropylene layers, creating a versatile emergency or outdoor blanket. It can be used as a ground tarp, shelter, or thermal barrier to reflect heat. Best for emergency kits, camping, and portable warmth applications where space is constrained. It may not be optimized for long-term indoor installation in fixed spaces, so use as a supplemental layer or outdoor solution.
Who this is best for and why selected
Best for outdoor enthusiasts and emergency preparedness kits needing a compact, multi-use reflective layer that also blocks moisture.
Cautions or limitations
Not a standalone long-term indoor insulation solution; pair with other materials for full room-level insulation if used indoors.
Arcturus Insulated Tarp – 60x82In
This insulated tarp uses a 3-layer design with Mylar reflective surface and rugged polypropylene to reflect body heat, block wind, and resist moisture. Best for camping, hunting, or emergency shelter where a lightweight, reusable barrier is needed. Choose this if you want a versatile tarp that doubles as a heat reflector and moisture shield. A limitation is that it is not a rigid installed barrier, so it may require anchoring for stable use indoors or as a fixed installation.
Who this is best for and why selected
Best for outdoor use, temporary shelters, and gear that needs reflective warmth with wind and moisture protection.
Cautions or limitations
Not designed as a primary fixed-insulation solution for interior walls; consider pairing with dedicated interior insulation for 150mm applications.
SmartSHIELD -3mm 48x100Ft Reflective Roll
This larger SmartSHIELD roll emphasizes a reflective barrier with a dedicated vapor barrier layer to prevent condensation. Ideal for bigger spaces in crawl spaces or interior projects where a broader roll reduces the number of seams. Best for projects needing a robust radiant barrier plus moisture control. A potential drawback is the breadth and weight, which may complicate handling in very tight installations without assistance.
Who this is best for and why selected
Best for larger crawl spaces or attics where a continuous barrier is desired to minimize seams and improve heat control.
Cautions or limitations
Verify fit for your 150mm thickness target; ensure you have enough space for roll handling and cutting in constrained areas.
Buying Guide: Key Considerations For Space Blanket Insulation
What is your primary purpose?
If radiant heat control is the main goal, prioritize products with high reflective efficiency and a dedicated radiant barrier. For moisture-prone areas, select options with a reliable vapor barrier.
Where will it be installed?
Choose based on space. Crawl spaces and basements benefit from lighter, flexible rolls that are easy to fit in tight gaps. Outdoor use may favor multi-layer survival blankets or tarps with waterproof features.
Thickness and fit for 150mm targets
Confirm the material thickness and how it will layer with other insulation. Some products are thin yet highly reflective, while others offer bulkier layouts that deliver more comprehensive insulation per layer.
Installation and handling considerations
Look for installer-friendly features: easy cutting, light weight, and flexible rolls for tight spaces. Consider whether a product includes a moisture barrier that remains effective after trimming.
Durability and environment
For outdoor or long-term use, prioritize products with weather resistance, abrasion resistance, and proven performance in variable humidity or moisture exposure.
Frequently Asked Questions
- What does a radiant barrier do? It reflects radiant heat back toward its source, reducing heat transfer and improving energy efficiency.
- Is a vapor barrier always necessary? Vapor barriers help prevent condensation in humid spaces but may not be required in all installations. Check local codes and space conditions.
- Can space blanket insulation be used indoors? Yes, where appropriate as a supplementary or radiant barrier, but verify compatibility with interior building materials and thickness needs.
- How do I choose the right thickness? For 150mm targets, consider a combination of reflective layers and actual insulation thickness to meet your thermal goals.
- Are these products safe for DIY projects? They are designed for consumer use, but follow installation instructions and safety guidelines for best results.
- Do these products block radon? Some combinations aim to block moisture and improve barrier performance, but specialized radon mitigation may require additional methods.