Shaped Pent Glass Roof

A glass roof against a house wall whose sides are tapered or bevelled, with the panes falling to a gutter on two posts. Width, depth, pitch and height at the wall, Taper of each side, Bevel of each front corner, Short or long roof support, post section, Glass or multi-wall panel covering, Frame finish

Details

Category: Pergolas › Open and Fixed Roof Pergolas

By Huu Khanh Nguyen · Updated November 5, 2026

Parameters

Name	Default	Unit
Roof width	4000	mm
Roof depth	3000	mm
Roof pitch	10	°
Height of the roof top at the wall	3200	mm
Panes	Math.max(2, Math.ceil((width - 116) / 1000))
Left side taper	0	°
Right side taper	0	°
Left front bevel	700	mm
Right front bevel	700	mm
Gutter around the bevels	false
Roof support	110	mm
Post section	90	mm
Roof covering	10	mm
Frame finish	powderRal9016
Overall width	hipGutter ? Math.max(width, rightBevel > 0 ? (width - Math.tan(rightTaper * Math.PI / 180) * ((depth - gutterWidth - 40) - rightBevel)) + gutterWidth * Math.sqrt(0.5) : width) - Math.min(0, leftBevel > 0 ? (Math.tan(leftTaper * Math.PI / 180) * ((depth - gutterWidth - 40) - leftBevel)) - gutterWidth * Math.sqrt(0.5) : 0) : width	mm
Overall depth	depth	mm
Overall height	heightAtWall	mm
Gutter plan width	postSize == 90 ? 117 : 127	mm
Distance between support centre lines	(width - 116) / paneCount	mm
Support underside height at the wall	heightAtWall - supportHeight * Math.cos(pitch * Math.PI / 180)	mm
Gutter bottom height	supportBottom - ((depth - gutterWidth - 40) / Math.cos(pitch * Math.PI / 180)) * Math.sin(pitch * Math.PI / 180) - [161, 163, 164, 166, 168, 170, 172, 175, 178][Math.round(pitch / 5) - 1]	mm