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Kingspan

1/4-Inch X 48-Inch X 48-Foot Greenguard Fanfold Eps Underlayment

Mfg.#
Q250
Sku#
2683712
  • Lightweight, durable, cuts clean and easy
  • Convenient 4 x 48 ft fanfold
  • XPS performance, economical price
  • Made of synthetic materials that are generally not recognized as providing a food source for insects, fungus, mold or mildew
  • Perforated to allow moisture vapor to escape

* Estimated stock levels as of Fri, Feb 27, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

For use in replacement siding operations to provide a level surface over old siding, add insulation and weather protection. when every penny counts, you can rely on the performance of our most economical fanfold siding underlayment. the Q-Series products have an extruded polystyrene foam (XPS) core with high impact polystyrene cap sheets on both sides, which make it one of the most durable products currently available. these products are also perforated to allow potentially harmful moisture vapor to escape so that it does not become trapped in the wall.

Specifications

General

Material Extruded Polystyrene
Type Underlayment

Dimensions

Length 48 ft
Thickness .2 in
Width 4 ft

Manufacturing Details
The following information is subject to change without notice

Related Documents

InstructionsPDF (PDF)

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