Unilin Thin-R XT/PR_UF PIR Floor Insulation Board 2400 x 1200 x 150mm

Product Code
127045

The floor in any building is an area of considerable downward heat loss when not properly insulated. Thin-R Underfloor will significantly improve the U-Value of new and existing floors.

Thin-R Underfloor is lightweight, easy to install and combines high compressive strength with low thermal conductivity, providing a high performance solution for floor insulation.


€89.95 €73.13
/ Price Per SHEET
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Unilin Thin-R XT/PR_UF is a high-performance rigid PIR board for insulating ground-supported and suspended floors. This straight-edge board measures 2400 x 1200 x 150mm and covers 2.88m².
The PIR core and low-emissivity foil facings provide low thermal conductivity while maintaining the compressive strength required beneath suitable screed and floor constructions. The board is also compatible with correctly designed underfloor-heating systems.
It is suited to new-build and refurbishment work across concrete slab, beam-and-block, hollow-core and suspended timber floors, subject to the specified floor build-up.
 
Key Features
  • Low thermal conductivity helps reduce downward heat loss.
  • 150kPa compressive strength suits correctly designed floor constructions.
  • Low-emissivity foil facings improve thermal performance.
  • Compatible with underfloor-heating systems.
  • Large 2.88m² board supports efficient floor coverage.
 
Technical Information
  • Product range: Thin-R XT/PR_UF
  • Product type: Rigid PIR floor-insulation board
  • Board dimensions L x W x T: 2400 x 1200 x 150mm
  • Board area: 2.88m²
  • Edge profile: Straight edge
  • Core material: Rigid polyisocyanurate (PIR)
  • Facings: Low-emissivity composite foil on both sides
  • Thermal conductivity: 0.022W/mK
  • Declared thermal resistance: 6.80m²K/W
  • Compressive strength: 150kPa
  • Reaction to fire: Euroclass F
  • Manufacturing standard: EN 13165
  • Certification: NSAI Agrément Certificate 03/0183
  • Certification: BBA Certificate 23/6997
  • Suitable applications: Ground-supported and suspended floors
  • Suitable floor constructions: Concrete slab, beam-and-block, hollow-core and suspended timber floors
  • Underfloor heating compatibility: Suitable
  • Pack quantity: 1 board
 
Please Note
  • Required insulation thickness and U-value depend on the complete floor build-up and perimeter-to-area ratio.
  • Lay boards with closely butted joints; stagger joints where two layers are installed.
  • Install a suitable separating layer with taped 150mm laps above the insulation where required by the floor specification.
  • Use Unilin XT/STR perimeter strips at wall-to-floor junctions and seal around service penetrations.
More Information
Barcode127045
BrandUnilin
Weight (kg)14.0000
Provided byTJ O'Mahony
Delivery Rulelarge & heavy

Last update: 18 August 2026

We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.

Delivery Charges & Delivery Times

Delivery TypeDelivery AreaDelivery ChargeDelivery Time
Small ItemsRepublic of Ireland€9.993–4 working days
Large & Heavy*Standard delivery area€29.995–7 working days
Extra Large*Standard delivery area€50.005–7 working days
Paint 5L or less**Standard delivery area€19.995–7 working days

Small Items

Delivery area
Republic of Ireland
Charge
€9.99
Delivery time
3–4 working days

Large & Heavy*

Delivery area
Standard delivery area
Charge
€29.99
Delivery time
5–7 working days

Extra Large*

Delivery area
Standard delivery area
Charge
€50.00
Delivery time
5–7 working days

Paint 5L or less**

Delivery area
Standard delivery area
Charge
€19.99
Delivery time
5–7 working days

*Standard delivery policy. Promotional delivery rates may apply during campaigns.

Additional Information

  • FREE delivery on eligible Small Items and Large & Heavy orders over €1,499, within the standard delivery area only.
  • Special Order and Catalogue Products require an additional 5 working days.
  • FREE collection of old appliances is available through WEEE Ireland when purchasing qualifying large appliances.
  • FREE Click & Collect is available for items in stock at your selected branch.
  • Large & Heavy and Extra Large items are available within our standard delivery area only.
  • Restricted delivery areas (Large & Heavy and Extra Large items): A75, A81, A91, F12, F23, F26, F28, F31, F35, F42, F45, F52, F56, F91, F92, F93, F94, H12, H14, H16, H18, H23, H71, N39, N41, P12, P14, P17, P24, P25, P31, P32, P36, P43, P47, P51, P72, P75, P81, P85, T12, T23, T34, T45, T56, V15, V23, V31, V92, V93.
  • Paint delivery Paint in tin cans 5L or less is available for delivery. Larger sizes and paint supplied in plastic buckets are available for Click & Collect only.
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30-Day Returns

TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.

Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.

Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products. Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.

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