Answer
Dec 18, 2025 - 02:25 PM
Usually no, you don’t need to glue UltraTouch radiant insulation down.
What you do depends on where and how you’re installing it:
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In a wall cavity / stud bay: Don’t glue it. It’s designed to friction-fit, and you can hold it with staples on the facing/straps, insulation supports, or netting if needed.
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On a flat surface (floor, under a platform, inside a compartment door, under a bed base, etc.): You can leave it loose if it’s trapped (panel goes back over it). If it can sag, slide, or flutter, mechanically fasten it (furring strips/battens, washers + screws, staple + lath, or insulation hangers).
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Overhead (ceiling/underside of something): Don’t rely on glue alone. Use mechanical fasteners.
If you want adhesive:
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Use a low-VOC construction adhesive or spray adhesive that’s labeled safe for insulation/fabric and your substrate.
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Avoid solvent-heavy adhesives that can melt/ruin facings or stink forever in an RV.
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