• SUPPORT:
  • 01509 649065 (9.00 - 17:00) Monday - Friday
ex VAT
inc VAT

50mm Knauf Dritherm 37 50x455x1200mm – 6.55 M2 Pack

Product code: 10010042

£22.90£27.48 ex VATinc VAT

In stock

Est. Delivery: 3 - 5 working days * (View Delivery Policy)

2% discount on orders over £2000 (+ VAT) with code: TAKE2
EAN: 2000000080659 SKU: 10010042 Categories: ,
Specification
Product code10010042
EAN2000000080659
Product Type Glass Mineral Wool
Dimensions 50x455x1200MM (6.55 M²)
Thickness 50mm
Brand Knauf
Application Cavity Wall
Material Glass Wool
Description

50mm Knauf Dritherm 37 50x455x1200mm - 6.55 m² Per Pack is a Cavity Wall Insulation Slab. Earthwool Dritherm 37 Standard grade Cavity Slabs are semi-rigid or rigid slabs of non-combustible, water repellent, glass mineral wool. They are 455mm wide to suit standard vertical wall tie spacing, ensuring a closed joint with adjacent slabs.

Specifications:

Thickness: 50mm

Width: 455mm

Length: 1200mm

Pack Quantity: 12

Pack Coverage: 6.55m2

Density: 17kg/m3Weight/m2: 0.85kg

Weight: 5.57kg

Thermal Conductivity: 0.037W/mK

R-Value: 1.4m2K/W

Fire Rating (Reaction to Fire): A1(Non-combustible)

Benefits:

  • Excellent thermal performance.
  • Non-combustible A1 Euroclass Reaction to Fire classification
  • Manufactured using a water repellent additive
  • Fully fill the cavity to prevent mortar snots and prevent bridges
  • Slabs are sized to fit between wall ties without the need for retaining discs,
  • Quick and easy to install
  • British Board of Agrement approved for use in all exposure zones

Lambda Value = 0.037

.

Delivery

INSULATION, DRYLINING AND CEILING TILE MATERIALS

Delivery Cost (+ VAT)Order value Ex VATOrder value Inc VAT
Free£500 and over£600 and over
£45Below £500Below £600
£60Below £200Below £240

Seasonal Delivery Update

  • Last orders for delivery before Christmas – cut off at 2pm on 17th December 2025. Any orders placed after will be processed on 5th January 2026.
  • Last delivery date before Christmas – 22nd December 2025 (subject to availability)
  • We will be closed from 22nd December and re-open on 5th January 2026.
Delivery times

We may be able to deliver sooner than advertised however, please allow for the delivery times listed on the products you have selected to save disappointment.

We will email you to confirm your delivery date. Please keep an eye out for the email that will also have your VAT receipt.

E.g. 3 – 5 Working days for delivery. If an order is processed on a Monday, 3 working days would be Thursday and 5 working days would be the following Monday.

During checkout, you will have the option to select your preferred delivery date at checkout. Please allow a minimum of the working days noted on the products you are buying. All products have their delivery time in working days, on the product page for delivery.

Orders placed after 2pm may be processed on the following working day.

Contact us if you live outside of our standard delivery areas

The below postcodes are excluded from our standard delivery area:

KW, AB, DD, PH19-PH48, ZE, BT, KW, IV, HS, IM, JE, GY, LL, KA, PA, PH, HS, DG9, DG8, SY14-SY25, PO30-PO41, LA11-LA22, CA6-CA28, SA

Please email us to request a quote to deliver to your area.

More details

For more details, please visit our Delivery Information page, or feel free to contact us.

Related products