40mm Isotherm
In stock
R499,00 incl. VAT
40mm Isotherm is an entry-level polyester ceiling insulation roll manufactured from recycled PET fibres. It provides a soft, fiber-free material suited to homes that require a thin, non-irritant insulation layer. This thickness is intended for very light applications where only minimal insulation support is needed.
Est. Delivery: 24 July – 27 July
40mm Isotherm Insulation
40mm Isotherm is made from recycled PET bottles and contains no loose fibers or added chemical irritants. It is designed as a thin, fiber-free insulation layer suitable for basic ceiling applications in residential properties. The polyester material is soft to handle and contributes a modest level of indoor comfort without introducing fibrous particles into the home.
This product is not SABS approved, and is intended for residential spaces where a polyester material is acceptable and compliance-rated insulation is not required.
Key Features
- Soft, non-irritant polyester fibres
- Manufactured from recycled PET bottles
- Fibre-free and chemical-free composition
- Lightweight and easy to position
- Hydrophobic material with low moisture absorption
- Suitable for basic insulation requirements
- Maintains its loft with minimal settling
- Appropriate for sensitive or allergy-prone environments
Typical Applications
- Residential ceilings requiring a very thin insulation layer
- Homes preferring fibre-free insulation materials
- Low-demand thermal applications
- Spaces with limited ceiling cavity depth
- Areas where a minimal insulation layer is acceptable
Why Choose 40mm Isotherm?
Choose this thickness if you need:
- A very thin polyester insulation roll
- A fibre-free, non-irritant ceiling material
- A lightweight option made from recycled PET
- A simple layer suitable for low insulation demands
- A cleaner alternative to traditional fibrous materials
Product Specifications
- Material: Polyester (recycled PET)
- Thickness: 40mm
- Density: 8.5kg/m³
- Roll Width: 1,200mm
- Roll Length: 10,000m
- Total Coverage: 12m² per roll
- Product R-Value: 0.63
- Climatic Zones: N/A
- Fire Classification: B/B1/2 classification
- SABS Approved: No
- Durability: Designed to retain loft with minimal compression
40mm Isotherm Insulation Overview
40mm Isotherm offers a thin, fiber-free polyester insulation option suited to basic residential ceiling applications. Manufactured from recycled PET fibers, it provides a simple, non-irritant material for homes requiring a minimal insulation layer without using fibrous products.
Where to Go Next
- Return to the Insulation Overview → Insulation Guide
- Explore insulation by brand → Brands
- Browse all Isotherm products → Isotherm
- Compare ceiling insulation options → Ceiling Insulation
Delivery Information
At Insulation Warehouse, we provide fast, reliable delivery across our service network so you get the insulation you need without delays. We are an online insulation store and do not operate as a walk-in retail outlet. All orders are placed online, processed immediately, and delivered directly to your home, site, or business.
Delivery Timeframes
- Most standard orders are delivered within 1–3 business days
- Fast dispatch from our storage facilities
- Orders are shipped as soon as payment is received
Specialized Product Lead Times
A few specialized or less common items may require additional preparation before dispatch. These can include:
- Industrial densities
- Custom-sized or made-to-order insulation
- Foil-faced products
- Commercial or non-standard rolls
When these items require extra time, we’ll let you know the expected delivery window.
Delivery Network
We deliver insulation products throughout:
- Johannesburg
- Centurion
- Pretoria
These areas form our primary delivery network, ensuring quick turnaround times for homeowners, installers, and contractors.
We can also deliver to surrounding suburbs — just send us your address if you’re unsure.
Delivery Process
- Orders leave our storage facility once paid for in full
- Delivery updates and timelines are provided
- Large orders may arrive on pallets to ensure product protection
Fast, Reliable Service
Our goal is to provide the quickest, most convenient delivery service possible. Whether you’re insulating a home, office, or development, our streamlined logistics ensure your materials arrive safely and on time.
