Q Series Fanfold Underlayment- Reflective Facer 1-Side
The extruded polystyrene (XPS) foam offers superior stiffness, so your siding job has the smoothest finish possible. The underlayment is extra durable, thanks to flexible plastic facers on both sides. Plus it’s perforated to allow moisture vapor to escape. The cut-and-fold hinge design ensures it lays flat. A perforated reflective facer that can enhance thermal performance is also available.
Kingspan GreenGuard® XP14 Siding Underlayment comprises ¼” thick closed-cell polystyrene (XPS) with perforated capsheets on both sides. It is configured in fanfolded bundles 4’ x 50’ with
cut-n-fold hinges. It is lightweight and easy to cut and install. It is designed to be used as a “leveling board”, added insulation and added moisture protection in installation of new vinyl siding over old siding. It is available with a reflective surface on one side, Kingspan GreenGuard® XFP14 Siding Underlayment, for added energy efficiency. Superior Stiffness for the Smoothest
Finish Panel rigidity, water-resistance, durability, easy cutting and excellent lay-flat properties make this product the very best fanfold siding underlayment.
| Typical Physical Properties | ||||||
| Property | Test Method | XP14 | XFP14 | XP38 | XFP38 | |
|
R-value1
(°F.ft².hr / Btu)1 |
ASTM C 518
(@75°F Mean Temperature)
|
1.0 | 3.0 | 1.5 | 3.6 | |
| Water Vapor Permeance (perm) |
ASTM E 96 Procedure A |
1.7 | 1.7 | 1.3 | 1.3 | |
| Water Absorption (max,% by Volume) |
ASTM C 272 | 2.0 | 2.0 | 2.0 | 2.0 | |
| Compressive Strength (psi @ 10% deflection) |
ASTM D 1621 | 12 | 12 | 14 | 14 | |
| Fire Characteristics2 Flame Spread Smoke Developed |
ASTM E 84/UL 723 | 25 250 |
25 250 |
10 45-140 |
10 45-140 |
|
| Dimensions / Packaging | |||||
| XP14 | XFP14 | XP38 | XFP38 | ||
|
Length3
|
50′ | 50′ | 50′ | 50′ | |
| Width3 | 4′ | 4′ | 4′ | 4′ | |
| Nominal Thickness | 1/4″ | 1/4″ | 3/8″ | 3/8″ | |
| Square Feet/Pallet | 9,000 | 9,000 | 6,000 | 6,000 | |
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