With it s 80mm of insulation and airtightness seals supplied with a 2 point lock and a short reach operating pole for ease of use.
Passive house roof hatch.
Wellhöfer s certified passive house attic hatch is the first ever attic hatch to receive passive house certification from the passive house institute in germany.
Given its extremely high insulation value the rhtep roof hatch is the perfect choice for structures for which the emphasis is placed on minimising energy consumption such as the passive house concept.
The one exception is the roof hatch for which a locally manufactured double glazed skylight roof hatch was used.
Passive house compatible glass roof system.
Integrated drip edge curb and airtightness.
Kink free isotherms maximize the efficiency of the installed skylights and minimize heat loss and risk of condensation.
The pr 60 allows freedom of design and comes with roof access component motorized roof exit hatch designed for stairway access in energy efficient buildings with fully insulated curb and frame.
Exterior walls windows doors slab and roof designed according to passive house principles radically reduce the amount of energy used to condition this building.
Specific flat roof design.
29 1 5 x 29 1 5 742mm x 742mm 29 1 5 x 41 742 mm x 1042 mm advantages.
The designo dd and supreme dd.
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This became possible through building a high performing envelop with enough buffer to use a lower performing and significantly more.
The airtightness of the hatch remains constant during a blower door test and easily copes with the pressure exerted while maintaining the same level of seal.
High performance roof exit hatch with gas pressure springs manual operation.
Premier loft ladders are therefore pleased offer the designo loft ladder and klimatec 160 which are both certified by the passive house institute along with two highly insulated loft ladders designed for passive and low carbon buildings.
High performance triple pane roof exit hatch with gas pressure springs and thermal bridge free frame.
This roof hatch excels in its insulation value with uw 0 198 w m k for the entire roof hatch construction.
All of the windows and exterior doors are passive house certified triple glazed units.
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The inspection door access hatch is ideal for quick and safely accessing storage space behind for example a knee wall attic space.