Does Reflectix work when covered?

No, it is not efficient once you cover it. It needs an air gap between the reflective surface and the radiant heat source. If you cover it directly, the fabric will heat up accordingly and the reflectix is not a good choice to deal with conductive heat.

Does Reflectix keep heat in or out?

They do a nice job of keeping out heat (and light) when in place.

Can Reflectix be left exposed?

Note: For all applications, do not leave exposed duct or space where air can enter between the duct and the Reflectix®. needed repairs. Any worn wiring should be replaced.

How much of an air gap does Reflectix need?

This product specifically states on it in big red letters “R-8 WITH AIRSPACE” and “R-6.0 WITHOUT AIRSPACE.” The company's website says “The product provides an R-8.0 when installed with a 0.75” air gap between the duct and the insulation, and R-6.0 when installed direct to the duct without a spacer.”

Can you double up Reflectix?

With multiple layers of product and airspaces between each layer, enhanced performance will be gained. If the product is simply “doubled” (with no air space between the layers), a very minimal benefit is obtained, (R-1.1 (per layer) for the Reflective/Double Bubble product).

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Which way do you install reflective insulation?

The foil insulation goes on top of the moisture barrier, followed by the roof covering. If you use bubble foil or rigid foam insulation, it also goes on top of the moisture barrier. Remember that there has to be an air space between the foil and the roofing.

Is Reflectix an air barrier?

The product provides a vapor/moisture barrier, which is a strong contributor to the efficiency of the system. Reflectix® is available in convenient roll sizes which contributes to ease of handling and installation.

How do you use a Reflectix in the attic?

It is easiest to install either 16” or 24” wide product (depending on rafter spacing). Begin at the top of the cavity. Run product flush to the decking, parallel to the rafter. Staple sheet directly to the deck (nails poking through sheet from above will not interfere with performance).

Is reflective insulation good for winter?

Radiant Barriers (Reflective Insulation)

Reflective, radiant-barrier insulation is usually made of aluminum foil with a variety of different backings, including plastic film and cardboard. This type of insulation is most effective in warmer climates, but can also be used for comfort and energy savings in cold weather.

Does radiant barrier work in winter?

A radiant barrier combined with traditional insulation and proper caulking and sealing stops heat from escaping when it's cold making your home warmer and more comfortable in the winter.

Can Reflectix damage windows?

Reflectix is a great product when being used for it's intended use as a reflective insulation or radiant barrier. It is not intended for use in residential or RV windows. When used on the inside it can break any window whether it is single or double pane.

Can Reflectix be used as insulation?

Reflectix can be used as wall cavity insulation—but tacking it to the centers of the studs in each cavity is a laborious process. Traditional fiberglass insulation is easier and faster, and it will insulate better. The key to using Reflectix properly is to understand how reflective insulation works in the first place.

Does Reflectix melt?

The following website states that Reflectix can withstand temps up to 180* F. I think it would melt if your water is boiling (212* F at sea level). Get a temp gage and find out how long you need to wait for the pot to reach the safety threshold of 180*.

How much R-value does Reflectix add?

Interior air films vary with the surface finish of the product (Reflective or White) and the heat flow direction. The values utilized in Reflectix® R-value calculations for Interior “Air Films” are as follows: Reflective side of product: R-4.55 Down • R-1.32 Up • R-1.70 Horizontal.

Is reflective insulation good for attic?

As a huge source of energy loss in homes, the attic is a great place to start. And reflective or foil insulation (like radiant barrier) is a great material to use.

Does a radiant barrier need air space?

So, without an air space, you cannot have radiant heat. Without radiant heat there is no way to have a “Radiant Barrier”. In fact, because of the conductive nature of pure aluminum, if you install radiant barrier foil WITHOUT the required air space it will actually work AGAINST you and INCREASE Heat flow.

Does radiant barrier in attic work?

Radiant barriers are more effective in hot climates than in cool climates, especially when cooling air ducts are located in the attic. Some studies show that radiant barriers can reduce cooling costs 5% to 10% when used in a warm, sunny climate.

Does radiant barrier work on walls?

A radiant barrier works in walls, too. With a ventilated airspace behind the cladding, as in a rainscreen, if the next layer on the other side of that airspace is a radiant barrier, it could reduce the heat flow.

How do you cover foil faced insulation?

Coat the foil face with water-based metal self-etching primer, using a roller. Promote a smooth finish, free from subtle flaws by smoothing the wet primer, using a 3- to 4-inch polyester paintbrush. Brush vertically, applying light pressure. Wait four hours for the self-etching primer to dry.

Can you walk on Reflectix?

What makes reflectix perform is both the the foil reflecting heat and the bubble wrap creating an air gap. Walk on it and the bobbles will burst leaving just the foil and a lose of a good part of the insulating properties.