Flat roof access with roof hatch and ladder from DOLLE
DOLLE Roof hatch offers the optimum and safe way up at flat roofs. The modular roof hatch combination is designed to give the safest and most convenient way to access the roof. The roof hatch is combined with a DOLLE loft ladder and casings after your need, depending on the height of floor separation, completed by the well thought out roof hatch from DOLLE. The roof hatch is easy to use with a good ergonomic handle and 2 strong gas springs on the inside of the hatch.
For complete weather resistance the hatch is covered with a hot-galvanized steel roof. Thanks to the light gradient on the lid there is no water accumulation on the lid which ensures that water runs from the roof hatch at any time. The snow guard list in the hatch keeps snow and dust outside and lets air circulate in the roof hatch. Prepared for mounting of a cylinder lock. Additional treads made of aluminium in the casing facilitate comfortable access. The aluminium treads are already mounted in the extra casing.
1) Roof Hatch made of hot-dip galvanized steel
2) Extra casing
3) DOLLE Loft ladder
Big advantage of the DOLLE Roof Hatch lies in the modular construction with individual, lightweight components. You install one after the other without use of crane and just by one man:
1) Mount loft ladder
2) Add casing on the loft ladder (max 4 casings)
3) Fit the roof hatch - and you are done!
up to 274 cm as standard
Special measure max. height:
REI 45: 336 cm
REI 45 Comfort: 290,8 cm
clickFIX® 76 Comfort: 284,6 cm
clickFIX® 76G: 332 cm
clickFIX® 76 Thermo: 274 cm
SW56-4: 336 cm
(Casing length 140 cm)
Opening size (B)
Made to measure 110 - 160 cm possible
Opening size width
Made to measure 60 - 80 cm possible
Construction height (D)
28.35 cm - max. 124.95 cm
Minimum height above roof (E)
Total height (D + E)
48.35 - 144.95 cm
Our flat roof is an uninsulated solution. The insulation comes from the loft ladder and downwards and here, the u-value depends on the type of loft ladder chosen.
Instead, in flat roof solutions, air circulation is ensured, so that no condensation occurs in the "cavity" between the loft ladder and the flat roof hatch.
When installing the flat roof solution, the casings are mounted first - the roofing board can be mounted directly from the roof and up to 3 cm from the top edge of the casing. When this is done, mount the aluminum strips on the casing before finishing the cover. Please also see the mounting video.
The trap door to a 120 x 70 cm flat roof hatch weighs 30,4 kg and the frame weighs 9,6 kg.
Drainage from a flat roof is between 2 and 10 degrees, so the incline on the roof is 10 degrees maximum.
We recommend you complete the following maintenance at least once a year:
Unfortunately, it is not possible, as it will affect all angles in relation to the opening of both the flat roof hatch and stairs. The incline of the roof can be 10 degrees maximum.
Yes, you can – for adjustment of the top hatch, you can tighten it here to make a real solid connection of the lid.