Serres à membrane et plantations : étude de cas sur une couverture diffusant la lumière
A greenhouse roof is a climate-control surface. Light, heat, humidity and condensation matter more than the shape seen from outside.
These reference views show ETFE cushion roofs over a botanical complex and a cylindrical conservatory with a lightweight roof.
Aperçu du projet
| Élément | Champ d'application de référence |
|---|---|
| Application | Botanical garden, conservatory, plantation cover |
| Typical span | 10–50 m per bay |
| Cover | ETFE cushions 200–300 µm; PVC/PVDF for shade |
| Frame | Galvanised steel or aluminium extrusions |
| Facteurs déterminants de la conception | Light, insulation, condensation, snow and wind |
Les défis que la conception doit relever
- Balance light and heat. More transmission is not always better; shading and diffusion may be needed.
- Control condensation. Detail the roof so water runs to a gutter rather than dripping onto plants.
- Ventilate at two levels. Extract hot moist air at the ridge and supply fresh air low down.
- Protect the frame. Humidity accelerates corrosion, so steel and fixings need a suitable finish.
Formes de toiture dans cet ensemble de référence
ETFE cushion roof
Two or more films are welded at the perimeter and inflated. The air layer provides insulation, while the curved surface gives the roof its stiffness.
Large free-form complex
Cushions can cover complex plan shapes with a relatively light frame. Individual cushions can be replaced without dismantling the whole roof.
Matériaux et livraison
ETFE is chosen for daylight and low weight. PVC/PVDF is more economical for shade houses and plantation covers where maximum light is not the priority.
- ETFE film 200–300 µm per layer
- Aluminium extrusions and galvanised steel frame
- Inflation system with pressure monitoring
Foire aux questions
Is ETFE suitable for a greenhouse?
Yes. ETFE transmits a high proportion of daylight, is lightweight and can be printed for shading. Multi-layer cushions improve insulation.
How is condensation handled?
Through ventilation, roof slope and drainage details that lead condensation to a gutter. The inner surface should not drip onto plants.
How long do ETFE cushions last?
Typically 20–30 years, depending on film grade, UV exposure and maintenance. Individual cushions can be replaced.
Discutez d'un projet similaire
Send the growing requirements, site climate and plan dimensions. We will review the cover and structural options.
À lire également : Systèmes de toiture et de façade en ETFE
Envoyez-nous votre cahier des charges · Gamme de produits à structure membranaire
