ISO-STROH – Floor Fill & Blown-In Insulation Made from 100% Wheat Straw
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Pour-in & blow-in – no additives
ISO-STROH – the most natural insulation material in our range
ISO-STROH consists of 100% wheat straw – untreated, without additives and without biocides. The ETA-certified material is suitable both as pour-in insulation for timber joist ceilings and loft floors and as machine-applied blow-in insulation in roof, wall and ceiling constructions. Its standout feature: the high installation density delivers excellent acoustic insulation – noticeably stronger than most other loose insulation materials.
Floor fill & ceiling fill
ISO-STROH as a natural pour-in insulation for timber joist ceilings, loft floors and ceiling cavities. Loosen – pour in – level off. No machinery required, suitable for DIYers.
To the 18 kg bag → By machineBlow-in insulation for roof, wall & ceiling
ISO-STROH blown by machine into enclosed cavities – seamless and cavity-filling for roof slopes, timber-frame walls and ceilings.
To the pallet 270 kg →Why ISO-STROH
The key differentiator: 100% natural, strong on acoustics
No additives or biocides
ISO-STROH consists of pure wheat straw – no chemicals, no biocides. Ideal for healthy living environments and ecological construction.
Strong acoustic insulation
The high installation density makes ISO-STROH particularly effective against airborne and impact sound – especially noticeable in timber joist ceilings.
ETA-certified
ISO-STROH holds a European Technical Assessment (ETA) – officially recognised under building regulations for safe use in residential construction.
Products at a glance
ISO-STROH 18 kg bag or pallet 270 kg
| Criterion | 18 kg bag | Pallet 270 kg |
|---|---|---|
| Contents | 18 kg wheat straw | 270 kg (= 15 bags of 18 kg) |
| Price | EUR 29.90 / from 14 units EUR 26.80 | EUR 398 / from 2 pal. EUR 380 / from 4 pal. EUR 365 |
| Price per kg | EUR 1.66 / from 14 units EUR 1.49 | EUR 1.47 / from 4 pal. EUR 1.35 |
| Ideal for | Smaller areas, DIYers, top-up quantities | Larger projects, specialist contractors, lower kg price |
| Application | Pour-in & blow-in | Pour-in & blow-in |
Material & blow-in service
Buy ISO-STROH – and have it blown in on request
ISO-STROH is one of the few insulation materials that can be both poured in by hand and blown in by machine. As a specialist contractor for blow-in insulation, we also carry out the ISO-STROH installation ourselves on request – for seamless, settlement-proof insulation in roof, wall and ceiling.
Frequently asked questions
Frequently asked questions about ISO-STROH
What exactly is ISO-STROH made of?
ISO-STROH consists of 100% wheat straw – untreated, without chemical additives and without biocides. The material is ETA-certified (European Technical Assessment) and officially recognised under building regulations.
Can ISO-STROH be applied by hand?
Yes. As pour-in insulation, ISO-STROH is simply loosened, poured in and levelled off evenly – no special machinery required. This is well suited to DIYers.
Why is ISO-STROH particularly good for acoustic insulation?
The high installation density of the wheat straw material creates a dense, sound-absorbing layer. This makes ISO-STROH particularly effective against airborne and impact sound – especially in timber joist ceilings, where acoustic insulation is often a challenge.
Which components is ISO-STROH suitable for?
ISO-STROH is suitable as pour-in insulation for timber joist ceilings, loft floors and ceiling cavities, and as blow-in insulation for roof slopes, timber-frame walls and ceilings. Particularly popular in ecological timber construction and sustainable renovation.
From when do the tiered prices apply?
For the 18 kg bag, the price drops from EUR 29.90 to EUR 26.80 from 14 units. For the 270 kg pallet, there are tiered prices down to EUR 360.00 per pallet from 4 pallets. We are happy to calculate your quantity requirement and the best price: +49 6261 17613.
What does ETA-certified mean?
ETA stands for European Technical Assessment. The certificate confirms that ISO-STROH meets building regulation requirements and is officially recognised for use in residential construction – important for builders, planners and specialist contractors.
Insulate with 100% natural material
Order ISO-STROH now – bag or pallet.
ETA-certified, no additives, strong acoustic insulation – for pour-in and blow-in application.