Blinds are commonly used window coverings primarily used with the purpose of blocking out sunlight as much as possible. Though the principal functionality of most window coverings is light control, i.e. letting you decide how much of natural light or sunlight you wish to have in your room, blinds are more about a darkening effect. Blinds are also of different types, the most popular of them being Roman blinds and roller blinds, each with their own advantages and disadvantages.
Roman blinds and roller blinds do not differ much on the basis of functionality but are distinguished because of their appearance and operation. These are made of fabrics lending a formal look and feel to the room and fall flat when open. They are constructed with the help of slats that are inserted into the back side of the fabric. These slats are attached to cords, which when pulled draws the slats together forcing the fabric to fold into overlapping pleats. The size of pleats depends upon the size the slats. Difference in constructions lead to variety of folds on the basis of which roman blinds can be classified as relaxed romans, balloon romans, butterfly romans, Austrian romans, faux romans, tucked romans with a cascading pleats, etc.
Roman blinds are easily available in most home interior stores in Toronto and you can buy them off the counter or even order for a customized version with specific measurements of your windows and special fixtures. Roman blinds are essentially made of fabrics and give you the liberty of choosing your own. You can choose from hemp, silk, cotton, linen or synthetics depending on factors like temperature control, UV resistance, light control, washability, level of opacity, etc. You can also choose to line or not to line Roman blinds to block more light and also for more insulation. Lining makes the blinds thicker that block light better than the thinner ones that merely diffuse the natural light streaming into a room. Blackout lining is a great option if you want 100% light block, though it is quite possible for some light to sneak in through the sides.
Roman blinds also work well for outdoors, for places like patios or a gazebo, where you wish to control light as well as temperatures. But for outdoor purposes, you ought to opt for a more durable and water resistant material like bamboo mats or synthetics instead of fabrics as they will have more exposure to natural elements.