When the windows change to the plastic ones, then the lining. The solution to this problem is quite simple and is to use drywall. You can make such a slope from drywall yourself and at the same time the cladding will not be too expensive, and most importantly, this building material will last a long time and at the same time will easily stand on a stone basis. And in order to insulate such a slope from drywall, it will be possible to use mineral wool, which will play the role of insulation and will not give the cold to penetrate into the room.
In order for such slopes of drywall can be easily installed, you will need the following tools and materials:
• Moisture -resistant drywall,
• Foam mounting,
• finish putty,
• bucket for kneading putty,
• putty knife,
• Construction mixer,
• Roulette,
• knife,
• glue for drywall,
• level.
Before starting to do the work, you will need to clean the surface, then measure the width and height of your slope, and then cut the stripes of drywall. You need to attach the profile to the wall or use glue, and then attach drywall itself to the opening. As soon as the slopes are in place, they should be sealed with finish putty with a spatula. Thus, you will get rid of all the cracks, and thereby you get not only even slopes, but also not letting the wind.