Moytherm Batts for Cavity Walls
Moytherm Batts are lightweight, semi-rigid batts of glasswool bonded with a water repellent binder.
These Batts provide a reliable and cost-effective method of insulating new brick work, block or masonry cavity walls.

Building Specification
Moytherm Batts are specifically designed for both Full Fill and Partial Fill Applications.
Agreement Certificates
Approval has been granted by the Agrément Board for the use of Moytherm products in a full fill or partial fill construction system as per Agrément Cert. Nos. 94/0001 and 94/0002 in any exposed zone up to and including 12m in height. Above 12m criteria specified in the IAB Certificate must be adhered to.
Partial Fill Specification
Moytherm Batts will be located in the cavity of all masonry cavity walls. (Cavity width to be decided by specifier). Insulation to be returned agianst the cavity face of the inner leaf of masonry by means of insulation retaining wall ties. Wall ties to be at 450 centres vertically and 600mm horizontally.
Typical Construction
In accordance with IAB certificate No. 94/0001. 102mm facing brick, 50mm retained cavity; Moytherm cavity wall slab, retained against inner block leaf by wall ties with retaining discs; 13mm lightweight Gypsum plaster finish.
|
U Value (W/m2K) |
||
|---|---|---|
|
Moytherm |
50mm |
0.44 |
|
Moytherm |
65mm |
0.39 |
|
Moytherm |
75mm |
0.35 |
|
Moytherm |
100mm |
0.28 |
Brick 1,700 kg/m3, Block 2,000 kg/m3
Full Fill Specification
Typical Construction:
In accordance with IAB certificate No. 94/0002. 100mm concrete block with 19mm external render, cavity fully filled with Moytherm Full Fill cavity wall slab; block inner leaf with 13mm lightweight Gypsum plaster finish.
Brick 1,700 kg/m3, Block 2,000 kg/m3
|
U Value (W/m2K) |
||
|---|---|---|
|
Moytherm |
50mm |
0.50 |
|
Moytherm |
65mm |
0.42 |
|
Moytherm |
75mm |
0.37 |
|
Moytherm |
100mm |
0.29 |
Technical Services
A technical service is available at Head Office. Specialist staff will be pleased to discuss all aspects of insulation with architects, specifiers and builders and other users.
Advantages of using Moytherm Batts
- Flexibility, snug wrap to masonry
- No cold bridging problems
- Less waste
- Superior Fire Performance, Non Combustible
- Water repellent
- Cost Effective
- Agrement Certified to 94/0001 and 94/0002
- No Maintenance
- Easy to install
- Excellent
- Easy to Install
- Excellent Thermal and Fire Insulation
Wall Ties
4mm Diameter Stainless Steel
Type 304515 wirw to B.S. 1243 IS. 268
Lengths 200mm to 250 mm.
Drip Points Double or Single
Packed in bags of thirty

