How to Insulate a Barn Roof

Insulating a barn roof is similar to insulating any other building type. However, it is worth noting that barns tend to be colder compared to other buildings and may require more insulation as a result. Your requirements might vary depending on the type of barn roof in place. If the barn is used for keeping animals in, insulation is much more important.

Aside from that, the process of insulating a barn roof is very similar to installing insulation in the roof of a house. If the barn is used for animals, it is important to make sure that any insulation is kept out of reach of the animals, so that they cannot damage or eat it.

Installing Baffles:

Firstly, baffles must be installed in any areas where the insulation will need to be firmly held in place. This is especially important in areas where the insulation and the roof rafters or ceiling joists will meet.

Working Around Fixtures:

You should also consider any fixtures such as light fittings and electrical wiring. Make sure that the insulation is kept at a safe distance away from these, particularly when it comes to light fittings since these can cause a fire risk. Fix pieces of wood around the fixtures to create a box that acts as a wall to protect them.

Laying Plastic Sheeting:

Plastic sheeting should be laid carefully against the inside of the roof, between the eaves. This should be done in any areas where you plan to install insulation materials to create an effective barrier for water vapour. It will also protect against insulation damage from moisture build-up. Fix the sheeting in place with a staple gun.

How to Support Roof Purlins

Installing Insulation Materials:

Fibreglass insulation is usually the best choice of material for insulating a barn roof. You should be able to cut it to fit in place after taking accurate measurements. Tuck the insulation material firmly into the spaces between the ceiling joists and make sure that there are no gaps that could cause the insulation to be ineffective. It’s a good idea to allow for a couple of extra inches when cutting the width, however, make sure that the insulation is not compacted into the space too much. Lay it lengthways between roof joists and use the appropriate tools to ensure that it is fixed to the roof.

Covering the Insulation:

Finally, covering the insulation will keep it out of sight and protected. This can easily be done by stapling light wooden panelling in place.