Weather and Energy
NCC Class 1 - Class 10 Buildings (residential, public buildings, shop fronts, apartments, hotels, factories and hospitals)


Weather and energy door and window seals are designed to prevent draughts, rain water infiltration and energy loss through external doors. Raven produce a variety of seals to suit even the most severe weather conditions that can also significantly improve the thermal efficiency of a building by preventing energy loss up to 50%.

In addition, Raven door bottom and perimeter seals can also be used in conjunction with threshold plates and astragal seals to prevent the ingress of dust, insects and rodents and wind-blown embers in bushfire prone areas.

Raven have a large range of weather – energy sealing systems tested and certified to meet building code regulations as well as meeting the applicable Bushfire Attack Level (BAL) requirements in bushfire prone areas.

National Construction Code (NCC) Requirements

Commercial
Class 2 - Class 9 buildings

J3.4 Windows and doors
(a) A seal to restrict air infiltration must be fitted to each edge of a door, openable window or the like forming part of—
(i) the envelope of a conditioned space; or
(ii) the external fabric of a habitable room or public area in climate zones 4, 5, 6, 7 and 8.

(b) The requirements of (a) do not apply to—
(i) a window complying with AS 2047; or
(ii) a fire door or smoke door; or
(iii) a roller shutter door, roller shutter grille or other security door or device installed only for out-of-hours security.

(c) A seal required by (a)—
(i) for the bottom edge of an external swing door, must be a draft protection device; and
(ii) for the other edges of an external door or the edges of an openable window or other such opening, may be a foam or rubber compression strip, fibrous seal or the like.

(d) An entrance to a building, if leading to a conditioned space must have an airlock, self-closing door, revolving door or the like, other than—
(i) where the conditioned space has a floor area of not more than 50 m2; or
(ii) where a café, restaurant, open front shop or the like has—
(A) a 3 m deep unconditioned zone between the main entrance, including an open front, and the conditioned space, and;
(B) at all other entrances to the café, restaurant, open front shop or the like, self-closing doors.


Residential
Class 1 and Class 10 buildings

3.12.3.3 External windows and doors
(a) A seal to restrict air infiltration must be fitted to each edge of an external door, openable window and other such opening—
(i) when serving a conditioned space; or
(ii) in climate zones 4, 5, 6, 7 and 8, when serving a habitable room.

(b) A window complying with the maximum air infiltration rates specified in AS 2047 need not comply with (a).

(c) A seal required by (a).
(i) for the bottom edge of an external swing door, must be a draft protection device; and
(ii) for the other edges of an external swing door or the edges of an openable window or other such opening, may be a foam or rubber compressible strip, fibrous seal or the like.

Ember Attack - BAL Ratings

Where door sets are being specified in Bush Fire Prone areas, door seals, weather stripping and draught excluders are required to meet AS 3959 to comply with the NCC. The BAL rating is determined by the site location and the attributing factors for bushfire attack to which AS 3959 gives guidance. Attention needs to be paid to specifying to the correct BAL rating as determined by AS 3959. Refer to the selection table.


Related Building Codes

There are several standards, which refer to seal properties and testing for weather - energy:

AUS / NZ
Requirements are noted in the Australian National Construction Code (NCC) and New Zealand NZ BC Compliance Doc. H.

UK / EU
Requirements are noted in the British Building Regulations Approved Document L1 & L2.

USA
Requirements are noted in the Building Code and the Residential Code IBC 2000.

For further details, refer to Standards / Authorities.
DOOR FRAME / PERIMETER SEALDOOR BOTTOM SEALASTRAGALTHRESHOLD PLATE SEALTHRESHOLD PLATE