--- product_id: 552402906 title: "XPS Foam Insulation Board | Underlay | Thermal | Sound Proofing | Underfloor Heating | Size 600x600mm | Available in 6mm 10mm 20mm 30mm (30mm)" brand: "cosyspace" price: "¥14354" currency: JPY in_stock: true reviews_count: 4 category: "Cosyspace" url: https://www.desertcart.jp/products/552402906-xps-foam-insulation-board-underlay-thermal-sound-proofing-underfloor-heating store_origin: JP region: Japan --- # Moisture resistant closed-cell foam 600x600mm size High R-value thermal resistance XPS Foam Insulation Board | Underlay | Thermal | Sound Proofing | Underfloor Heating | Size 600x600mm | Available in 6mm 10mm 20mm 30mm (30mm) **Brand:** cosyspace **Price:** ¥14354 **Availability:** ✅ In Stock ## Summary > 🔥 Insulate smarter, live better — the ultimate comfort upgrade! 🏡 ## Quick Answers - **What is this?** XPS Foam Insulation Board | Underlay | Thermal | Sound Proofing | Underfloor Heating | Size 600x600mm | Available in 6mm 10mm 20mm 30mm (30mm) by cosyspace - **How much does it cost?** ¥14354 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/552402906-xps-foam-insulation-board-underlay-thermal-sound-proofing-underfloor-heating) ## Best For - cosyspace enthusiasts ## Why This Product - Trusted cosyspace brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay Cozy Year-Round:** High R-value foam locks in heat during winter and keeps interiors cool in summer. - • **Moisture? No Problem!:** Closed-cell structure repels water, perfect for damp or humid environments. - • **Quiet Comfort Upgrade:** Soundproofing properties reduce noise, enhancing your space’s tranquility and focus. - • **Precision Fit, Every Time:** Standard 600x600mm boards for seamless installation and coverage. - • **Built to Last Under Pressure:** 300kPa compressive strength ensures durability under heavy loads without deformation. ## Overview Cosyspace XPS Foam Insulation Boards are rigid, moisture-resistant polystyrene panels sized 600x600mm, available in thicknesses up to 30mm. Featuring a high thermal resistance (R-value) and 300kPa compressive strength, they deliver superior insulation and durability. Ideal for underfloor heating, soundproofing, and damp environments, these lightweight boards simplify installation while enhancing energy efficiency and acoustic comfort. ## Description Note: Please note that the product colour for 6mm and 10mm boards can be blue or black depending on what stock is available. Cosyspace XPS Insulation Boards XPS insulation boards, also known as extruded polystyrene insulation boards, are a type of rigid foam board insulation that is commonly used in the construction industry. The boards are made from polystyrene resins and are produced by a process of extrusion, whereby melted polystyrene is forced through a die to form a rigid foam board. They have closed-cell structure that provides excellent thermal insulation and sound proofing properties, making them highly effective at reducing heat loss in buildings. They are also water-resistant, which makes them ideal for use in damp or humid places. XPS insulation boards are lightweight and easy to handle, making them simple to install in walls, roofs, floors, and other building components. Review: Great for scenery - Great for scenery Review: Arrived well packaged. - Good quality product - arrived ahead of schedule and well packaged. Definitely buying foam from this company again. ## Features - Size : 600x600mm Available in 6mm 10mm 20mm & 30mm Thickness - High R-Value: XPS foam has a high R-value, which measures its thermal resistance. Its closed-cell structure and low thermal conductivity make it an efficient insulator, helping to keep buildings warm in cold weather and cool in hot weather. - Moisture Resistance: XPS foam is highly resistant to moisture and does not absorb water due to its closed-cell structure. This property makes it suitable for use in areas prone to moisture - Durability: Cosyspace XPS is 300kpa this helps it withstand heavy loads and pressure without significant deformation, making it suitable for use in various construction applications. - Widely Used In Walls And Loft Insulation, Underfloor Heating, Roof, Wet Room, Laminate Underlay, Tiling Underlay - Soundproofing: XPS foam also offers soundproofing benefits by absorbing and reducing sound energy, making it a good choice for acoustic applications or to improve the acoustic performance of a room. - Lightweight and Easy to Handle: XPS foam is relatively lightweight and easy to handle, making it convenient to work with during installation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CCYYKM7M | | Best Sellers Rank | 49,950 in DIY & Tools ( See Top 100 in DIY & Tools ) 37 in Panel Insulation | | Brand | Cosyspace | | Coverage | 0.36 square meters | | Customer Reviews | 4.6 out of 5 stars 24 Reviews | | Included Components | Insulation Board | | Item Dimensions L x W | 60L x 60W centimetres | | Item Thickness | 30 Millimetres | | Item Type Name | Rigid Foam Insulation 300kpa | | Item thickness | 30 Millimetres | | Manufacturer | Cosyspace | | Material | Polystyrene | | Model Number | 30mm | | Number of Items | 1 | | Product dimensions | 60L x 60W centimetres | | Recommended Uses For Product | Thermal Insulation, Sound Insulation, Underfloor Heating, Roof Insulation, Wet Room Insulation, Laminate Underlay, Tiling Underlay, Acoustic Applications | | Recommended uses for product | Thermal Insulation, Sound Insulation, Underfloor Heating, Roof Insulation, Wet Room Insulation, Laminate Underlay, Tiling Underlay, Acoustic Applications Recommended uses for product Thermal Insulation, Sound Insulation, Underfloor Heating, Roof Insulation, Wet Room Insulation, Laminate Underlay, Tiling Underlay, Acoustic Applications See more | ## Product Details - **Brand:** Cosyspace - **Item thickness:** 30 Millimetres - **Material:** Polystyrene - **Product dimensions:** 60L x 60W centimetres ## Images ![XPS Foam Insulation Board | Underlay | Thermal | Sound Proofing | Underfloor Heating | Size 600x600mm | Available in 6mm 10mm 20mm 30mm (30mm) - Image 1](https://m.media-amazon.com/images/I/41m+AX-eLnL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for scenery *by R***G on 28 August 2026* Great for scenery ### ⭐⭐⭐⭐⭐ Arrived well packaged. *by S***0 on 13 September 2024* Good quality product - arrived ahead of schedule and well packaged. Definitely buying foam from this company again. ### ⭐⭐⭐⭐⭐ just what is required *by A***R on 8 July 2024* this is a very difficult product to get hold of well done. ## Frequently Bought Together - XPS Foam Insulation Board | Underlay | Thermal | Sound Proofing | Underfloor Heating | Size 600x600mm | Available in 6mm 10mm 20mm 30mm (30mm) - Mod Podge, Water-base Sealer, Glue and Finish, Matte Finish, CS11302, 473 ml Bottle - PROXXON Micromot Thermocut Hot Wire Cutting Device --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/552402906-xps-foam-insulation-board-underlay-thermal-sound-proofing-underfloor-heating](https://www.desertcart.jp/products/552402906-xps-foam-insulation-board-underlay-thermal-sound-proofing-underfloor-heating) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-05*