Owens Corning
Owens Corning FOAMULAR 250 XPS Insulation Board - All Sizes
Owens Corning FOAMULAR 250 XPS Insulation Board - All Sizes
SKU:OWCFOAM2503/4In
Est Delivery between 6th Feb and
12th Feb.
The option you have selected may be in short supply. To make an enquiry please call us on 281-657-1443 or email us at sales@4us-group.com.
How much will I need?
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project
Product Information
Please Note We Can Not Ship To The Following States: California, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington
Owens Corning FOAMULAR 250 Extruded Polystyrene (XPS) Insulation is a closed-cell, moisture-resistant rigid foam board well suited to meet the needs for a wide variety of building applications. FOAMULAR 250 XPS insulation board is great for many residential and commercial construction applications such as wall furring, perimeter/foundation, cavity wall, pre-cast concrete, under a slab, crawl spaces, sheathing, and other applications.
| Thickness | Sq Ft Per Board | R-Value |
|---|---|---|
| 3/4" | 32 Sq Ft | R4 |
| 1" | 32 Sq Ft | R5 |
| 1.5" | 32 Sq Ft | R7.5 |
| 2" | 32 Sq Ft | R10 |
| 2.5" | 32 Sq Ft | R12.5 |
| 3" | 32 Sq Ft | R15 |
| 4" | 32 Sq Ft | R20 |
Features
- Excellent long-term stable insulating performance at R-5 per inch
- Exceptional moisture resistance, long-term durability
- Lightweight, durable rigid foam panels are easy to handle and install
- Easy to saw, cut or score
- Scored Square Edge
Applications
• Slows the transmission of water vapor and moisture in masonry walls
• Provides continuous insulation over wood or steel stud framing, in insulated concrete sandwich panel walls, in masonry unit cavity walls, or when used with non-penetrating, surface mounted furring systems over masonry or concrete walls
• Insulates and retains its properties in below-grade perimeter and foundation applications, or directly beneath the concrete slab to complement the insulating sheathing envelope around the building framing
• FOAMULAR 250 XPS insulation is great for below-grade applications. FOAMULAR XPS insulation is resistant to degradation from the components of common soils
and will retain its insulating performance characteristics even after prolonged exposure to moisture
• Extruded Polystyrene Provides a weather-resistant barrier (when joints are sealed) to enhance the building’s resistance to air and moisture penetration
Product Data Table
| Property | Test Method2 | Value |
|---|---|---|
| Thermal Resistance3, R-Value (180 days) minimum, hr·ft2·°F/Btu (RSI, °C·m2/W) @ 75°F (24°C) mean temperature |
ASTM C518 | |
| ¾" Thickness | 4.0 (0.70) | |
| 1" Thickness | 5.0 (0.88) | |
| 1½" Thickness | 7.5 (1.32) | |
| 2" Thickness | 10 (1.76) | |
| 2½" Thickness | 12.5 (2.20) | |
| 3" Thickness | 15 (2.64) | |
| 4" Thickness | 20 (3.52) | |
| @ 40°F (4.4°C) mean temperature | ||
| ¾" Thickness | 4.3 (0.76) | |
| 1" Thickness | 5.4 (0.95) | |
| 1½" Thickness | 8.1 (1.43) | |
| 2" Thickness | 10.8 (1.90) | |
| 2½" Thickness | 13.5 (2.38) | |
| 3" Thickness | 16.2 (2.85) | |
| 4" Thickness | 21.6 (3.80) | |
| Long Term Thermal Resistance, LTTR-Value3, minimum hr·ft2·°F/Btu (RSI, °C·2/W) @ 75°F (24°C) mean temperature |
CAN/ULC S770-03 | |
| ¾" Thickness | N/A | |
| 1" Thickness | 5.0 (0.88) | |
| 1½" Thickness | 7.8 (1.37) | |
| 2" Thickness | 10.6 (1.87) | |
| 2½" Thickness | 13.4 (2.36) | |
| 3" Thickness | 16.2 (2.85) | |
| 4" Thickness | 22.0 (3.87) | |
| Compressive Strength, minimum psi (kPa) | ASTM D1621 | 25 (172) |
| Flexural Strength, minimum psi (kPa) | ASTM C203 | 75 (517) |
| Water Absorption, maximum % by volume | ASTM C272 | 0.10 |
| Water Vapor Permeance, maximum perm (ng/Pa·s·m2) | ASTM E96 | 1.5 (86) |
| Dimensional Stability, maximum % linear change | ASTM D2126 | 2.0 |
| Flame Spread | ASTM E84 | 5 |
| Smoke Developed | ASTM E84 | 45-175 |
| Oxygen Index, minimum % by volume | ASTM D2863 | 24 |
| Service Temperature, maximum °F (°C) | 165 (74) | |
| Linear Coefficient of Thermal Expansion, in/in/°F (m/m°C) | ASTM E228 | 3.5 x 10-5 (6.3 x 10-5) |
Technical Specifications
| Brand | Owens Corning |
| Compressive strength | 25psi (kPa) |
| Edge profile | Scored Square Edge |
| Fire rating | ASTM E84 |
| Flame spread | 5 |
| Material type | XPS (Extruded Polystyrene) |
| Product length | 96" |
| Product type | Rigid Board |
| Product width | 48" |
| Smoke developed | 45-175 |
| Temperature range | 74°C |
| Water absorption | 0.10% by volume |
| Water vapor permeance | 1.5 perm |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.
Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact shipping charge will be calculated at checkout based on your order and location.
For more information on shipping view our delivery info page.
Frequently asked questions
Can you help me pick the right materials for my project?
Yes, of course!
Our team is ready to assist you with any questions and queries you may have.
Just reach out to us via any of the following methods:
Call us: 281-657-1443
Email us: sales@4us-group.com
or click the Livechat tab at the bottom of your screen.
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email deliveries@4us-group.com with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with ShopPay, Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@4us-group.com with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Can I open a pro contractor account?
Yes! Pro contractors can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a pro contractor account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via sales@4us-group.com or call 281-657-1443 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns