ᐅ Which garage or workshop door offers the best thermal insulation?

Created on: 18 Apr 2018 13:24
M
MaytO
M
MaytO
18 Apr 2018 13:24
Hello everyone,

In our new build, I am planning a combined garage/workshop area for hobby use. This space will primarily store workshop equipment as well as bicycles, motorcycles, boats, and possibly a vintage car in the future. Therefore, this area is designed within the insulated building envelope and located in the basement (ground-level access due to the hillside site). It is specifically not intended for everyday cars, so the door will only be opened a few times per week (main access will be through the basement staircase with a smoke-proof fire door planned).

--> Which door or double-leaf gate would be suitable for my project and meet the following criteria:
- Clear internal dimensions when open: at least 2.3m (7.5 feet) wide and 1.95m (6.4 feet) high
- Good thermal insulation (to ensure this moderately heated space does not lose too much heat – target temperature in winter is at least 13-15°C (55-59°F) continuously). This also includes good airtightness (no drafts, no holes allowing insects to enter)
- Low threshold that can support the weight of a regular car
- Weather resistance
- Preferably (but not mandatory): good burglary protection (RC2). This could also be ensured by a suitably equipped door leading to the staircase (at least securing the residential building)
- Budget: 3000€ for materials, cheaper is welcome 😉

My current thoughts:
Either a well-insulated sectional door, for example from the Hörmann LPU67 series. However, I am unsure whether these are truly suitable in terms of airtightness (drafts, insects) for this purpose? Which garage door (manufacturer, model) currently offers the best thermal insulation and airtightness?
Second thought: a multi-purpose double-leaf door like the Hörmann D65-2 RC2. I suspect these are only suitable as interior doors (I couldn’t find any evidence on the website?) and in particular, they might not be sufficiently weatherproof/waterproof?

This turned out to be quite a bit of text – thanks for reading – now I look forward to your ideas and input on the options mentioned!

Best regards
MaytO