Kingspan GreenGuard XP Fanfold Insulation 3/8" x 4' x 50'

The Kingspan GreenGuard XP Fanfold Insulation 3/8" x 4' x 50' is a exterior insulation for jobs that require Pactiv model/MPN XP38 in the BD sell unit. Premium choice 1/4 in THK closed-cell extruded polystyrene (XPS) fanfold underlayment with top-of-the-line perforated facers on both sides for use in replacement siding operations; designed to be used as a "leveling board", adding insulation and moisture protection in installation of new vinyl siding over old siding.

Key Specs

• Brand: Pactiv
• Model / MPN: XP38
• SKU: PACGGXP38
• Sell unit: BD
• Product type: Exterior Insulation
• Size / color: 3/8" x 4' x 50'
• Category: Siding | Siding/Exterior Insulation

Key Features

• Top-of-the-line facers
• Lay flat cut-and-fold hinges
• Perforated to allow moisture vapor to escape

Coverage & How Much You Need

Coverage or yield is not specified in the available product details. Use the manufacturer installation instructions and project takeoff before converting the job size into order quantity.

Compatibility / Fitment

Use this item only when the brand, model/MPN, size/color, sell unit, and system type match the project specification. Do not substitute it for a different exterior insulation, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.

FAQs

What exactly am I ordering?

Kingspan GreenGuard XP Fanfold Insulation 3/8" x 4' x 50', sold as BD, with SKU PACGGXP38 and manufacturer model/MPN XP38.

What model or part number should I match?

Match model/MPN XP38 and confirm the brand is Pactiv. If the job spec lists a different model, size, color, or system family, hold for review.

What unit is the price based on?

This listing is built around the BD sell unit. Confirm the unit before comparing price, quantity, or coverage.

How do I estimate quantity?

Coverage or yield is not specified in the available product details. Use the project takeoff and manufacturer instructions before estimating quantity.

What should be checked before purchase?

Confirm the model/MPN, sell unit, size/color, jobsite condition, compatible system components, and any manufacturer installation limits before approving the order.

Verify the manufacturer instructions, local code, and project specification before installation or substitution.

Product Expert Notes

Choose this item when Pactiv model/MPN XP38, SKU PACGGXP38, and the BD sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.