Install Under Floor Insulation

Install the insulation with the vapor barrier facing up toward the heated living area of the house.

Install under floor insulation.

Simply rip or cut the insulation to length. 1 put on a dust mask and a pair of safety glasses then access the area beneath the floor through either the crawl. According to the energy saving trust installing floor insulation could save you up to 65 on heating bills and 290kg of carbon dioxide. At the furthest point under your floor position yourself underneath the insulation pulling the material up and over to fit it between the joists.

Don t compress the insulation when installing it but allow it to expand to fill the cavity. Fold out the paper flaps along the side of the insulation and staple it to the joist. Hold the insulation in place using support wires beneath it. Butt the edges together tightly to prevent air gaps.

There are two ways to install the floor insulation. If both floors of the house are heated use unfaced insulation. An uninsulated floor can lose roughly 15 of the heat from your home so the ground floor and any upstairs rooms above unheated areas should be suitably insulated. Feed the insulation under the bottom plate to ensure full coverage.

If you are in a new home that does not have any flooring down yet you can lay the insulation in between the exposed joists. Starting at one end of the room work your way to the other corner. And this video shares the insight that i attribute to the lo. Covid 19 update to customers all of our stores in new zealand are open and continue to have a comprehensive range of measures in place to keep team members and customers safe.

When starting on a bay that backs on to an exterior wall the insulation needs to touch the underside of the floor closest to the wall this seals the bay off at the end so no air can get in from outside. Install an insulation hanger if used on the either side of the joint. Underfloor insulation the complete guide. Pull the insulation tight as you go.

Finally you will need to lay a vapour control layer on top of the underfloor insulation this slows the passage of water vapour through to the insulation but does not stop it like a vapour barrier would. You can install underfloor insulation in older homes with some basic hand tools. All the time ensuring the correct overlaps and the correct taping of all edges including the joint between the floor and the walls. A recent job forced me to think of a new affordable way to install floor insulation from above.

Make sure there are no compressions or folds other than your edges.