H150 90° Internal angle (pack of 5)75 x 75mm x 3m These angled trims are used to cover any features that sit perpendicular to the main roof or any other laminated surface. The G range of external trims have the finished face on the outer face, with the H range being the opposite the finish is on the inner angle. The trims should be nailed, any joints nail heads taped and resin covered as per usual.