Performance

All Origin products are built to last, and thoroughly tested, which is why we offer an industry-leading guarantee of up to 20-years on parts.

OB-36⁺ has been designed for maxmised thermal efficiency, and has been engineered with a polyamide thermal break.

Exceptionally slim frames, maximum viable glass coverage and airtight seals all contribute to ensuring that OB-36⁺ can meet a highly efficient 0.78 U-Value with triple-glazing.

Product Performance

Building Regulations*
New Build Limiting Value	1.6 W/m²K
Replacements	1.4 W/m²K
Energy Rating	C or better
*All doors must conform to these requirements

Performance
PAS 24	2022
Secured By Design	Awaiting certification
Air Permeability	Class 3, 600 Pa
Water Tightness	Class 7A, 300 Pa
Wind Loading	Class A3, 1200 Pa

Testing

BS 6375 Parts 1, 2 and 3

Passed 50,000 lead sash cycles and 10,000 full cycles, equating to 25-years of use.