Glass Roof Span Tables

Pitching beams 23 common installation details 25 notches cuts and holes in beams.

Glass roof span tables. Span is the distance between supports. Crn70 blue tint glass roof without gutter. For example a roof is subjected to a full snow load only a small percentage of time during the course of a year so this is factored into the roof s load calculation. Span tables for engineered wood are used in a very similar way as those for sawn lumber.

The use of technical glass solutions and coatings can make your structural glass roof a higher performing element of your project. Single span beams are. Crn30 clear glass roof front end. Maximum clear span of rafters in metres for roof pitches of between 15.

Crn100 detail of clear glass patio cover. For each combination of span and span rating loads are given for deflections of l 360 l 240 and l 180 and maximum loads controlled by bending and shear capacity. The span of roof glazing is classified as the downslope dimensions between the centre lines of the fixing positions rather than the glazing bar length which is always longer than the span. The glass should be fully framed on all the four edges with a minimum of 8mm to 1077mm maximum toughened glass between the supports 10 1650mm span and 12 1930mm span.

Thicker glass table tops are capable of holding more weight. Crn80 blue tint glass roof bottom view. Crn90 clear glass patio cover. Three main factors for determining the weight load of your glass table top is glass thickness the square footage of the glass and the distance between the structural support eg.

The following tables give details of the allowable spans and spacing for some of the more common timber sizes used in traditional roofing construction. Roof beams 20 verandah beams 22 garage roof. For special application conditions for tables 1 2 and 3 use the factors listed in table. Applied parallel to supports.

Distance of site from the sea 3. These minimal steel supports can span large distances and can suit a more industrial effect design. Crn40 clear glass roof viewed from below. Achievable spans are dependent upon many factors including.

Crn50 gable style clear glass roof. Glass load calculator by one day glass to request a quote please give us a call at 800 452 6117. Span for the purpose of using these tables span may be interpreted as the clear distance between supports measured along the beam. For a different appearance steel t or box sections can be used to support the glass joints within a glass roof.

Crn60 glass roof attached to side fascia. Building codes allow reductions in live loads based on duration of load. All the figures are based on roofing tiles or slates laid on timber laths over sarking felt.