When it comes to loft insulation, there are several important things to keep in mind. First, you need to decide on how much you want to put in. The amount you need should be between 270mm and 380mm. You can measure the width of your joists by measuring the space below and adding them together. Make sure you consider the width of the walls, too, since this will have an impact on how much you need to put in. You also need to make sure that you have a sufficient amount of loft insulation because if it is not fitted properly, it may not perform as well as you would like.
Next, you need to make sure you have the right material for your loft. Glass wool insulation can be the best option, but be sure that the joints are properly sealed. If you have an unfinished loft, you should check if you have any wiring or electrical boxes that need to be covered. Be sure to apply caulk to any holes or gaps that will allow for ventilation. For the installation of downlights, consider putting in Downlight Covers from a site like Thermahood Direct. Be sure to check the installation of your recessed downlights before you get started.
Before you can get started, you must consider if there are any damp issues before installing insulation. As the insulation prevents heat escaping your living space, it will make your loft cooler and this could exacerbate any existing damp problems. If this is the situation, then be sure to increase ventilation in the loft space.