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Rockwool Hp Partial Fill Cavity Slab 80mm X 455 X 1200 (4.37m2)
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ROCKWOOL HP PARTIAL FILL CAVITY SLAB 80MM X 455 X 1200 (4.37M2)
The ROCKWOOL High Performance Partial Fill Cavity Slab, a semi-rigid insulation solution created for masonry cavity wall construction, is a durable cavity wall insulation solution made of renewable stone wool fibres. It withstands typical conditions, maximises thermal performance and provides a fire-resistant insulation. It has been specially designed to absorb any irregularities on the inner leaf and eliminate ‘stand off’. These features in turn maximise the product’s thermal performance effectively whilst also withstanding on-site rigours to ensure the longevity of -the external wall construction. The fire resistant, mineral wool insulation product creates slabs which increase energy efficiency by knitting together when tightly butt jointed to eliminate potential heat loss caused by any gaps. As a high quality and long lasting product which features a strong outer surface, the High Performance Partial Fill Cavity Slab offers a stable product that will last for the lifetime of the building.
Accreditations:
Euroclass A1 non-combustible / BBA Certificate 93/2884 for use in tall buildings up to 25 metres in height.
| Brand | Rockwool |
|---|---|
| Weight | 19.9000 |
| Provided by | TJ O'Mahony |
| Delivery Rule | large & heavy |
Last update: 17 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 Type | Delivery Area | Delivery Charge | Delivery Time |
|---|---|---|---|
| Small Items | Republic of Ireland | €9.99 | 3–4 working days |
| Large & Heavy* | Standard delivery area | €29.99 | 5–7 working days |
| Extra Large* | Standard delivery area | €50.00 | 5–7 working days |
| Paint 5L or less** | Standard delivery area | €19.99 | 5–7 working days |
*Standard delivery policy. Promotional delivery rates may apply during campaigns.
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.
