Product

Double-bubble reflective insulation

Double-bubble insulation is a sheet made of a layer of air bubbles between two reflective foil faces. It combines a reflective surface with a thin air-filled layer, and is sold as a roll that is cut and fitted to the surface.

Specification sheets and current options come with your quote. Nothing here is a performance promise.

See it

Photos

A diagram of the product first, then typical spaces where it is used. Photos of our own jobs are added as we finish them.

Double-bubble insulation

Foil faces around two air-bubble layers
Used in roofs, walls and metal buildings

Installing wall insulation — **Wall insulation install**
Reflective insulation goes in walls and metal buildings too
Sealed seams matter as much as the material

Stack of reflective foil insulation — **Metal roof**
Sun-heated roofs give off heat into the space below
Common site for reflective insulation

Building roof under blue sky — **Building roof**
Metal and shed roofs heat up fast in Texas sun
A reflective layer under the roof cuts radiant heat

What it is

What is in the sheet

The foil faces reflect radiant heat. The sealed air bubbles between them add a small amount of resistance to heat conduction. Whether the sheet is the right product, and how thick or how many layers, depends on what you need from it and what the building allows. We do not quote a rating until we have the maker data for the exact product.

Where it fits

Common uses

Under metal roofs and over purlins in sheds, barns and workshops.
Wall cavities and ceilings where a thin reflective layer is useful.
Garage doors, as a lightweight add-on.
Projects where space is tight and thick insulation will not fit.

Be realistic

Not the best fit

Anyone who needs a high, certified rating for a code requirement. Thick traditional insulation may be needed instead.
Spaces where the foil would touch wiring, or where moisture control has not been addressed.
Expecting it alone to solve a very hot attic. It works best as part of a plan.

Good to know

Things that affect the result

Reflective surfaces need an air space to work well.
Seams, edges and fixings matter. Gaps and tears reduce the result, so installation quality counts.
Foil is conductive. We keep it clear of live electrical parts.
Ask for the maker test report and what it was tested on.

How it works

From request to install

Tell us about the job

Send the address, building type and what you want to improve.

We check the building

We confirm what is there now and what the product needs to work.

Quote, then install

A clear quote first. Kexova installs it.

Questions

Double-bubble questions

Is double-bubble the same as a radiant barrier?

They overlap. Double-bubble adds an air-bubble layer to a reflective foil surface. A plain radiant barrier is just the reflective layer.

Can it replace regular insulation?

Not in every case. For a required rating, ask us and check local code. We will not recommend it where it will not do the job.

Is it waterproof?

Check the specification of the exact product. We confirm it before we quote.

Is it fire rated?

Fire ratings vary by product and use. We confirm the product data before recommending it.

Radiant barrier

A reflective layer for attics and roofs.

See radiant barrier

Garage door insulation

Panels for garage door sections.

See garage doors

Planning a roof, wall or shed?

Tell us about it and we will say whether double-bubble fits.

Get a free quote