Design Information Regarding 14. 1 Above Roof Installation With Rafter Anchors; General Information; Above Roof Installation With Rafter Anchors - Viessmann VITOSOL 100-F SV Technical Manual

Design information regarding installation
Overhead glazing
Glazing with an angle of inclination greater than 10°
– No additional safety measures to protect against falling glass parts
are required for flat-plate and tube collectors with an angle of incli-
nation greater than 10°.
Design information regarding installation on pitched roofs — above roof installation

14.1 Above roof installation with rafter anchors

General information

Observe the information on securing collectors on page 110.
■ This fixing system can be used universally for all standard roof cov-
ers and is designed for wind speeds of up to 150 km/h and the fol-
lowing snow loads:
Vitosol-F, type SV: up to 4.80 kN/m
Vitosol-F, type SH: up to 2.55 kN/m
Vitosol-T:
14
Information on Vitosol-F, type SV
For snow loads of up to 2.55 kN/m
mounting rails, while for snow loads of 4.80 kN/m
required. The rails are the same for all snow and wind loads.
■ The fixing system comprises rafter anchors, mounting rails, clamp-
ing brackets, screws and seals.
■ Guarantees a permanently safe application of force to the roof struc-
ture. This reliably prevents tile breakages. In regions with higher
snow loads, we always recommend this fixing system.
■ Two versions of the rafter anchors are available:
– Rafter anchor, low tile, 195 mm high
– Rafter anchor, high tile, 235 mm high
■ To enable the mounting rails to be secured to the rafter anchors,
maintain a clearance of max. 100 mm between the top edge of the
rafters or counter battens and the top edge of the roof tiles.
VIESMANN
112
2
2
2
up to 2.55 kN/m
2 , each collector is secured on 2
2
, a third rail is
(cont.)
Vertical glazing
Glazing with an angle of inclination smaller than 10°
– The TRLV does not apply to vertical glazing with an upper edge higher
than max. 4 m above a traffic area.
No additional safety measures to protect against falling glass parts
are required for flat-plate and tube collectors with an angle of incli-
nation less than 10°.
– For vertical glazing with an upper edge higher than 4 m above a traffic
area, suitable measures must be taken to effectively prevent glass
from falling (e.g. netting or trays below; see the following diagrams).
■ For above roof insulation, secure the rafter anchors on site.
For this, the screws must reach at least 120 mm into the load bear-
ing wood structure to ensure sufficient load bearing capacity.
■ Any unevenness in the roof can be compensated for by adjusting the
rafter anchors.
Criteria for selecting the fixing system:
■ Snow load
■ Rafter spacing
■ Roof with or without counter battens (various screw lengths)
VITOSOL