Pent Glass Terrace Roof

A glass roof for a terrace that leans against a house wall: aluminium supports on wall brackets carry panes that fall to a gutter held on slim posts. Width, depth, pitch, height at the wall and panes, Standard or deep gutter, short or long roof support, Post section, number of posts and indent, Roof overhang past the posts, 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	3000	mm
Panes	Math.ceil((width - 116) / 1000)
Post section	90	mm
Posts	2
Roof covering	10	mm
Frame finish	powderRal9016
Overall width	width	mm
Overall depth	depth	mm
Overall height	heightAtWall	mm
Guttering	160	mm
Roof support	110	mm
Roof overhang	false
Post indent	0	mm
Gutter plan width	guttering == 220 ? 142 : (postSize == 90 ? 117 : 127)	mm
Distance between support centre lines	(width - 116) / paneCount	mm
Support length	(depth - gutterWidth - 40 - supportHeight * Math.sin(pitch * Math.PI / 180)) / Math.cos(pitch * Math.PI / 180)	mm
Support underside height at the wall	heightAtWall - supportHeight * Math.cos(pitch * Math.PI / 180)	mm
Gutter bottom height	supportBottom - supportLength * Math.sin(pitch * Math.PI / 180) - (guttering == 220 ? [221, 223, 224, 226, 228, 230, 232, 235, 238] : [161, 163, 164, 166, 168, 170, 172, 175, 178])[Math.round(pitch / 5) - 1]	mm
Post rear face	plus ? depth - Math.min(Math.max(depth / 3, 400), supportHeight == 150 ? 1000 : 700) : depth - gutterWidth	mm