INTERNAL 135 CORNER KIT- BM3

The Internal 135 Corner Kit – BM3 from The DiscreteHeat Company Ltd is a purpose-made corner solution for ThermaSkirt BM3 installations. It creates a clean, accurate 135° internal angle for bay returns and angled walls, aligning and covering the joint between two BM3 lengths for a continuous, professional finish. By using a pre-formed corner, it reduces on-site cutting and mitres while maintaining the BM3 profile line.

Designed to match the BM3 profile and finish, this corner kit simplifies installation and helps protect the joint from movement and everyday knocks. Intended for internal 135° corners only; use corresponding BM3 external corner parts for outside angles.

• Compatible with DiscreteHeat ThermaSkirt BM3 profile
• Forms a precise internal 135° corner junction
• Delivers a neat, consistent finish on angled walls and bay windows
• Speeds installation by minimizing on-site mitring
• Profile- and color-matched to the BM3 system
• For internal corners; use with BM3 trims and accessories
• Supplied as a kit for one internal 135° corner