This is our review of the Expol Garage Door Insulation DIY Kit. The garage door insulation kit is designed for sectional doors and easy to install.
Many new houses these days have an insulated garage space attached to the home. This means that the walls and ceiling surrounding the garage are insulated with a material such as a Rockwool, Glasswool or similar. The insulation material thermally insulates the internal garage space, and can also reduce noise transfer between inside and out. But many garages in New Zealand have metal garage doors that have no garage door insulation, resulting in both heat and sound migration. Even brand new home builds are still being constructed in New Zealand without garage door insulation, even though the walls and ceiling of the garage are fully insulated. This is a Expol Garage Door Insulation DIY Kit review.
There is no currently no requirement in New Zealand to install pre-insulated garage doors or any form of retrofit garage door insulation. So usually for cost reasons, insulated doors often don't get installed. It is very common on new spec houses to discover that the garage door is uninsulated, which usually means almost an entire wall of the garage has no insulation. This is even more of an issue today, as more and more people use their garage as an extra room of the house.
The internal side of our existing garage door prior to installation, where the garage door insulation will be installed
Steel horizontal strengthener bars within door panel
Insulation panels have to be installed in four pieces, as the polystyrene panels come in a 1.2 metre maximum lengths. This is too narrow for the garage door segments in our door. Also the panels have to be cut around the horizontal strengthening bars.
This is a panel where the polystyrene has been notched to accommodate the horizontal strengthening bar
A few of the smaller pieces that had to be cut and notched so they could fit around the door structure
This piece had to be notched for the screw fixings in the door. All the polystyrene panels were also glued to the horizontal bar so they wouldn't move or fall out when the door moves
The door with all of the polystyrene installed. Notice the joints where each of the 8 segments of the door is made of of 4 pieces of polystyrene. The only thing remaining is the installation of the Corflute panels
Expol Garage Door Insulation DIY Kit Completed, with the Corflute installed.
Clean Up and Finishing
Expol Garage Door Insulation Conclusion
- Longer polystyrene and corflute panels, to accommodate wider garage doors with wider door segments. As the segments in our garage door were longer than the polystyrene and corflute panels, it meant we had to join the lengths of polystyrene and corflute. The corflute therefore had to be butted up alongside the other, so there is a visible join.
- Maybe selling a half pack, or the ability to buy just a few extra panels. Our single garage door was an average sized door, but we had to buy an additional pack of 8 panels, because the single pack would only do a very narrow single garage door. Normally you would only need a second pack if you were doing a double door. So we used less than 1/4 of the second pack. This has resulting in a lot of waste and it also doubled our cost.
- Having an additional colour option for the corflute panels. We found with the white corflute panels differed in colour depending on the pack, and after it was installed you can see the joins in the polystyrene behind it. Although this is only because we had to join the polystyrene panels. It may not be an issue if you aren't having to join the panels. White also may not be the best colour in a garage longer term as it will get grubby. A grey coloured corflute may help eliminate these issues, and the corflute used on professionally installed garage door insulation does tend to be grey in colour.