H1 ENERGY EFFICIENCY
![H1pic2-cropped-low.jpg](https://static.wixstatic.com/media/19d5e3_e1dbd186d3f14a50873f79429709c502~mv2.jpg/v1/fill/w_979,h_281,al_c,lg_1,q_80,enc_auto/H1pic2-cropped-low.jpg)
![H1logo-transperant.png](https://static.wixstatic.com/media/19d5e3_51b4e69a3fb84a668ba765ded6f5c914~mv2.png/v1/fill/w_133,h_200,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/H1logo-transperant.png)
Hallmark Thermal Envelope Doors
NZ Building Code H1/AS1 relates to all housing, and buildings up to 300m2 (and H1/AS2 relates to buildings larger than 300m2). It affects exterior doors and all doors between controlled areas (such as living room, passage, etc) and uncontrolled areas (non-heated areas such as an internal garaging), referred to as the Thermal Envelope.
The required thermal resistance rating, or R-Value, for building thermal envelope doors under H1/AS1 varies depending on where you are in the country:
![r-ratings_map-lo.jpg](https://static.wixstatic.com/media/19d5e3_ec0a211f0ac245f4aec016239af4b2fb~mv2.jpg/v1/fill/w_600,h_675,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/r-ratings_map-lo.jpg)
Thermal Rating of Hallmark Doors
Hallmark doors meet/exceed the R-values required by H1/AS1 as per the below table.
R-values in m2·K/W were independently calculated with ISO 10077-1 using ISO 10077-2 and ISO 6946 and the below R-values in m2·K/W are determined for 38mm thick flush panel door leaf (ie, without glazing) with standard 4.75mm MDF skins.
![r-values_table-lo.jpg](https://static.wixstatic.com/media/19d5e3_f1043de984b24b9fa6dfec26e0678c77~mv2.jpg/v1/fill/w_657,h_843,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/r-values_table-lo.jpg)
Note: H1/AS1 applies to exterior doors and doors between a house and garage... not standard interior doors.