Post category: Glazing Materials
Once the only available material, glass is still the best, letting in light and retaining heat better than any alternative. It is more expensive and not as safe as plastics, but it lasts much longer. Safety glass is available, however, and though it is more expensive again than ordinary glass, it might be considered for a conservatory.
Not as dear as glass, and safer, but they do not let in as much light; nor do they look as well, except for perspex, but this is expensive, too.
This is usually polythene which is cheap and safe and lets in light but does not last so well. PVC and Ultra-violet inhibited films are more expensive than polythene but last longer.