What is the thinnest insulation with the highest R-value?

Aerogel insulation offers the highest R-value of any insulating material at less weight and thickness—ideal for construction, refineries, pipelines, and thin-gap thermal barriers.

What is the thinnest most effective insulation?

Thermablok® Aerogel is a revolutionary advancement in thermal technology offering the thinnest insulation available to prevent thermal and cold bridging. Classed as a Super Insulation, Aerogel has the highest insulation value of any known material with the lowest thermal conductivity value of any solid (0.015W/mK).

What insulation material has the highest R-value?

Vacuum insulated panels have the highest R-value, approximately R-45 (in U.S. units) per inch; aerogel has the next highest R-value (about R-10 to R-30 per inch), followed by polyurethane (PUR) and phenolic foam insulations with R-7 per inch.

What is the thinnest r38 insulation?

R-Values. Insulation thickness determines its thermal resistance, or R-value. The thicker the insulation, the greater the R-value. An insulation value of R-38 is at the high end and requires a minimum thickness of 12 inches.

Which type of insulation below has the best R factor?

The type of insulation with the highest R-Values, with a few exceptions, is rigid foam or panel insulation. Also called “foam board” or “continuous” insulation. Most varieties of this type of insulation consist of expanded foam sandwiched between two rigid panels.

R-50 Insulation at 1.5" or less!

What is the R-value of 1 inch Styrofoam?

STYROFOAM extruded polystyrene insulation is rated at an R-value of 5.0 per inch at 75°F.

What is the thickness of R 38?

The R-38 high-performance batts are 10˝ to 10-1/4˝ thick as opposed to stan- dard R-38 fiber glass insulation batts of 12˝.

How many inches of fiberglass insulation is R38?

R38 - 10.25 in - Fiberglass Insulation - Insulation - The Home Depot.

What is the R-value of rigid foam board?

Extruded polystyrene: Extruded polystyrene (XPS) rigid foam is usually blue or pink in color, with a smooth plastic surface. XPS panels typically aren't faced with other material. The R-value is about R-5.

What is the most efficient insulation?

Fiberglass insulation still allows for airflow into the attic. Spray foam insulation is the most energy-efficient insulation to create an air barrier in the attic. Certain spray foams can expand up to 100 times its original size, so it fills all of the nooks and crannies in the attic.

What is the R-value of 1 inch of spray foam insulation?

This microscopic difference in the two products creates a dramatic difference in performance. Closed cell spray foam has an R-value of R-7 per inch. In comparison, open cell spray foam has an R-value of R-3.8 per inch. Additionally, the materials have decidedly different densities.

What is the R-value of aluminum foil?

Most brands of foil-faced bubble wrap are only 3/8 inch thick or less, and have an R-value of only 1.0 or 1.1.

What is the R-value of aerogel insulation?

According to InspectAPedia.com, the R-Value of aerogel is 10.3 per inch versus rigid fiberglass, which has an R-Value of 4 per inch. The R-Value, or resistance value, of insulation measures to what degree insulation resists the flow of heat through an insulation material.

What is the minimum thickness for wall insulation?

It should normally be at least 60mm thick, and can be up to 100mmm. The actual thickness required will depend on the material used - Insulation boards are fixed straight onto the wall using continuous ribbons of plaster or adhesive.

Does doubling insulation Double R-value?

Doubling the thickness of insulation will double the insulation's R-value, cutting heat loss in half. Each time the insulation layer is doubled in thickness, this rule applies.

Does fiberglass insulation lose R-value when compressed?

When you compress fiber glass batt insulation, the R-value per inch goes up, but the overall R-value goes down because you have less inches or thickness of insulation.

Does fiberglass insulation lose R-value over time?

That's because insulation performance decreases dramatically. A 1.5% increase in moisture content in fiberglass insulation can reduce its R-value by up to 50%, according to Rastra. That's not a typo.

How thick is R48 insulation?

This type is usually about 3-5 inches thick, so you'll need anywhere from 3-5 layers [making the total layer about 10-20 inches thick] to accommodate for an R48 value.

How thick is r50 insulation?

While conventional insulation requires a thickness of 15 inches to reach an R-value of 50, Rich-E-Board achieves the same result at just 1.5 inches thick.

What thicknesses does insulation come in?

Rigid board insulation generally comes in standard thicknesses ranging from ½ inch to 2 inches. It is possible for homes located in extreme climates to order specialty thicknesses of up to 6 inches directly from certain manufacturers. Obviously, the thicker the rigid board, the higher the insulation capacities.

What is the R-value of three quarter inch foam board?

R-5.78 Rigid Foam Insulation.

What is the R-value of wood?

The R-Value of Wood

The R-value for wood ranges between 1.41 per inch (2.54 cm) for most softwoods and 0.71 for most hardwoods.