If you’re installing ceiling insulation in an existing home, then two common alternatives are insulation segments, and insulation rolls.
Insulation segments vs rolls – is one better than the other?
The short answer is no – both products are equally effective in insulating your ceiling space. The main difference is the method to install the insulation. While rolls can be ‘rolled’ out between the ceiling joists, insulation segments are installed in pieces. If you are installing insulation across the joists to eliminate thermal bridging, and if your ceiling space has very few obstacles and a lot of room to work in, you may find that installing rolls is a suitable option. However if you have a tight ceiling space and have some additional obstacles such as ventilation pipes or electrical cables, then you will find it easier to install insulation segments.
There is an argument which suggests that rolls are better because there are less ‘gaps’ for air to escape through. This is hardly relevant. In fact, if the insulation segments are installed correctly with a snug fit, there will be no noticeable difference in the performance of the insulation. No matter which product or brand of insulation you choose to install, remember how insulation works: it provide a thermal barrier between the outside environment and the living area inside the house.
Our verdict – Insulation Segments vs rolls
In most situations, we would recommend insulation segments as the best and most cost effective option. Knauf Earthwool Glasswool Thermal Ceiling Insulation Segments are a fantastic option. They come in compression packed bags, saving you time on getting the insulation into the ceiling. Once you have got the bags up there, split them open one at the time, and install all the pieces from the first bag before opening the next bag. If you would like to add an extra layer of insulation to your roof space, then consider installing the Knauf Earthwool Glasswool Thermal Ceiling Insulation Rolls.