Product Specification
Altherm ICF block specifications
Our premade forms fit together as large interlocking blocks. We use two EPS panels spaced apart by high strength polypropylene webs, that form an insulated permanent shuttering into which concrete is poured.
By using polypropylene webs, we further reduce thermal bridging. These webs maintain a core thickness between the EPS panels of either 150mm (300mm ICF block) or 200mm (350mm ICF block).
See below for further information about:
- 300mm Standard ICF Blocks
- 350mm ICF Block for Multi-Storey Apartments & Commercial Buildings
- Declared Characteristics
300mm - STANDARD ICF BLOCKS
300mm Straight Form
| Length x Height x Width(mm) | 1200 x 400 x 300 |
|---|---|
| Width of Concrete Form (mm) | 150 |
| Width of Concrete (m3)/m2 of wall | 0.014 |
| Thermal Conductivity (λ) | 0.030 W/m.K |
300mm Straight Form is comprised of two insulating EPS panels (75mm thick) connected by high strength polypropylene webs. These webs maintain a core thickness between the EPS panels of 150mm, where the concrete is poured.
- Suitable for foundations & ground floor
- Reversible
300mm Corner Form
| Length x Height x Width(mm) | 862 x 412 x 400 x 300 |
|---|---|
| Width of Concrete Form (mm) | 150 |
| Width of Concrete (m3)/m2 of wall | 0.014 |
| Thermal conductivity (λ) | 0.030 W/m.K |
300mm Corner Form has 75mm insulating panels on either side of a 150mm core. The forms are 412mm on the short side and 812mm on the long side.
- Suitable for foundations & ground floor
- Reversible
300mm Vertical Cavity Closer
| Length x Height x Width(mm) | 400 x 150 x 75 |
|---|
The 300mm Vertical Cavity Closer
slots neatly into either the 300mm corner or straight forms to close off the concrete core at the sides of openings.
- Fits into 300m straight or corner ends
- Essential to minimise thermal bridging
- Reversible
300mm Horizontal Cavity Closer
| Length x Height x Width(mm) | 1200 x 150 x 65 |
|---|
The 300mm Horizontal Cavity Closer fits neatly into either the top or bottom of the 300mm straight forms to close off the concrete core at the heads and sills of openings.
- Fits into 300m straight or corner ends
- Essential to minimise thermal bridging
- Reversible
350mm - ICF BLOCK FOR MULTI-STOREY APARTMENTS & COMMERCIAL BUILDINGS
350mm Straight Form
| Length x Height x Width(mm) | 1200 x 400 x 350 |
|---|---|
| Width of Concrete Form (mm) | 200 |
| Width of Concrete (m3)/m2 of wall | 0.019 |
| Thermal conductivity (λ) | 0.030 W/m.K |
350mm Straight Form provides a concrete core of 200mm which is sufficient bearing for hollow core thickness between the EPS panels of 150mm, where the concrete will be poured.
- Suitable for multi-storey floors/apartments
- Reversible
350mm Corner Form
| Length x Height x Width(mm) | 862 x 462 x 400 x 350 |
|---|---|
| Width of Concrete Form (mm) | 200 |
| Width of Concrete (m3)/m2 of wall | 0.013 |
| Thermal conductivity (λ) | 0.030 W/m.K |
350mm Corner Form has 75mm insulating panels on either side of a 200mm core. The forms are 462mm on the short side and 862mm on the long side.
- Suitable for multi-storey floors/apartments
- Reversible
350mm Vertical Cavity Closer
| Length x Height x Width(mm) | 400 x 200 x 75 |
|---|
The 350mm Vertical Cavity Closer slots neatly into either the 350mm corner or straight forms to close off the concrete core at the sides of openings.
- Fits into 350m straight or corner ends
- Essential to minimise thermal bridging
- Reversible
350mm Horizontal Cavity Closer
| Length x Height x Width(mm) | 1200 x 200 x 65 |
|---|
The 350mm Horizontal Cavity Closer fits neatly into either the top or bottom of the 350mm straight forms to close off the concrete core at the heads and sills of openings.
- Fits into 350m straight or corner ends
- Essential to minimise thermal bridging
- Reversible
Declared Characteristics
| Essential Characteristic | Technical Specification | Product Performance |
|---|---|---|
| Declared Thermal Conductivity (50mm) | IS EN 12667 | 0.030 W/mK |
| Compressive Strength at 10% Deformation | IS EN 826:2013 | 129 kPa |
| Bending Strength | IS EN 12089:2013 | 329.65 kPa |
| EPS Density | IS EN 1602:2013 | Min 24 kg/m3 |
| Reaction to Fire | IS EN ISO 11925-2, IS EN 13501-1:2007 | Euroclass E |
| Water Vapour Permeability | IS EN 12086:2013 | 0.7208 mg/m·h·Pa |
| Water Absorption by Partial Immersion | IS EN 12087:2013 | 0.23 kg/m2 |
| Water Absorption by Total Immersion | IS EN 12087 | 2.1 % |
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