Isogrek H28
Anti-condensation insulated sheet · 9 trapezoidal ribs, 28 mm high (H28 profile) · 10 mm · PUR 60 kg/m³
BRoof(t3)Solar-readyCurvable
View Isogrek H28 Cladding & roofing for farm sheds
Shed cladding and shed roofing sheets for slatted units, cubicle sheds, machinery stores, calf houses and dairies. The choice comes down to three things: whether stock is under the roof (condensation), how far the purlins are apart (span), and whether the building is heated.
Stop the drips: condensation
Bare steel over livestock drips. Isogrek H28 puts 10 mm of high-density PUR on the underside of an H28 sheet and stops it; Kappa 3/5 Agri panels add real insulation with an aluminium or fibreglass underside that shrugs off ammonia washing.
Span and cost
For open-fronted stores and machinery sheds, H 28 or R/W 1000 in 0.5–0.6 mm galvanised is the value option. Delta 5 at 40–60 mm spans wider purlin centres than a 3-rib panel.
Heated or washed-down buildings
Dairies, parlours and calf houses benefit from 60–80 mm Delta 5 or Kappa 5 with a wipe-clean underside. Alfa 1 or Alfa 2 wall panels finish the internal walls without blockwork.
Products for this job
Kappa 5
Single-skin insulated roof panel · 5 trapezoidal ribs · 20–120 mm · PUR / PIR
BRoof(t3)Solar-readyAgri version
View Kappa 5 
Delta 5
Insulated roof panel · 5 trapezoidal ribs · 30–150 mm · PUR / PIR
B-s1,d0REI30Solar-ready
View Delta 5 
Alfa 1
Insulated wall panel, visible fixing · micro-ribbed, 166.4 mm module · 25–200 mm · PUR / PIR
B-s2,d0
View Alfa 1 Compare the range
Declared values from manufacturer datasheets to EN 14509 and EN 13501. A dash means no rating is published.
| Product | Type | Core | Thickness | U @ 100 mm | Reaction to fire | Fire resistance | External fire |
|---|---|---|---|---|---|---|---|
| Isogrek H28 | Anti-condensation insulated sheet | PUR 60 kg/m³ | 10 mm | – | – | – | BRoof(t3) |
| Kappa 5 | Single-skin insulated roof panel | PUR / PIR | 20–120 mm | 0.22 | – | – | BRoof(t3) |
| Delta 5 | Insulated roof panel | PUR / PIR | 30–150 mm | 0.22 | B-s1,d0 | REI30 | BRoof(t3) |
| H 28 | Box profile roofing and cladding sheet | Steel | up to 1.0 mm steel | – | A1 | – | BRoof(cwft) |
| R/W 1000 | 1000 mm cover roofing and wall sheet | Steel | up to 1.0 mm steel | – | A1 | – | BRoof(cwft) |
| SL 940 | Lightweight roofing and wall sheet | Steel | up to 1.0 mm steel | – | A1 | – | BRoof(cwft) |
| Alfa 1 | Insulated wall panel, visible fixing | PUR / PIR | 25–200 mm | 0.22 | B-s2,d0 | – | – |
Certifications on this range
Reaction to fire (EN 13501-1), fire resistance (EN 13501-2), external fire (EN 13501-5), EPD type III and CE marking. Classes depend on core and thickness and are confirmed at order.
Full certification tablesCladding & roofing for farm sheds questions
What roof sheeting is best for a slatted shed?
Isogrek H28 if you only need to stop condensation; Delta 5 at 40 mm if you also want to keep the shed warmer and quieter.
Do you deliver to the farm?
Yes, nationwide. Tell us about access for an articulated lorry when you enquire.