Johns Manville

Johns Manville insulation products, listed on Insulation4Us, are renowned for their quality, durability, and extensive range, suited for various framing applications including both wood and steel framing. Below is a generalized overview of the Johns Manville category.

Fiberglass Insulation Batts

Fiberglass insulation batts are the cornerstone of Johns Manville's product line-up, available in various ‘R’ values – a measure of thermal resistance, the higher the value, the better the insulation. These products are useful for thermal and acoustic insulation, and they are available for both wood and steel framing.

Unfaced Fiberglass Insulation Batts

Johns Manville offers a range of unfaced fiberglass insulation batts, suitable for those who prefer a separate vapor barrier or where a vapor barrier is not needed. Products range from R-11 to R-30, catering to different insulation needs, and are perfect for walls, floors, and ceilings.

Kraft-Faced Fiberglass Insulation Batts

Kraft-faced options, integrated with a paper vapor barrier, are available for those looking for an all-in-one solution. These products, ranging from R-11 to R-38, are ideal for locations where a vapor barrier is beneficial, such as external walls.

Foil Faced Fiberglass Insulation Batts

The foil-faced insulation batts, ranging from R-11 to R-30, are optimal for places where radiant heat is a concern as the foil acts as a radiant barrier, reflecting heat.

Practical Uses and Applications

Johns Manville products are versatile, catering to different requirements:

Wood Framing

The products designed for wood framing are ideal for residential and light commercial applications, providing excellent thermal and acoustic insulation.

Steel Framing

Johns Manville offers products specifically designed for steel framing, essential for commercial buildings due to steel’s high thermal conductivity.

Climate Pro

Johns Manville Climate Pro products are designed for blow-in applications, a great solution for attics and hard-to-reach areas, offering seamless insulation.

Guidance for Product Selection

When selecting insulation, consider the following:

• R-value: Choose a higher R-value for better thermal resistance.
• Vapor Barrier: Select Kraft-faced if you need an integrated vapor barrier, and unfaced if you prefer a separate one or don’t need one.
• Radiant Barrier: Opt for foil-faced products if radiant heat is a concern.
• Framing Material: Consider whether your project involves wood or steel framing, and choose the product designed for that material.