A proper storage floor fitted above your insulation rather than crushed down onto the joists. You keep the storage space, and the insulation carries on doing the job you paid for it to do.
Get Free Quote: 01952 407599Your loft insulation is laid to around 270mm. The joists it sits between are usually about 100mm deep. Lay boards straight across those joists and you squash roughly two thirds of the insulation flat.
Compressed mineral wool does not insulate well. It works because of the air trapped inside it, and pressing it down squeezes that air out. So the loft you boarded to gain storage quietly starts costing you money every winter, and the cold boards sitting on flattened insulation give condensation somewhere to form.
Raised boarding lifts the floor clear on a support system, so the insulation stays at full depth with an air gap above it. It costs a little more than boards on joists. It is the difference between gaining storage and creating a problem you will not notice until the loft gets damp.
Boarding straight onto 100mm joists crushes 270mm of insulation to a third of its depth. Raised boarding leaves it intact, so you are not paying to heat the roof space.
An air gap above the insulation keeps the underside of the boards warmer, and clear eaves keep the roof ventilated. Both are how a boarded loft stays dry.
A continuous, level floor instead of a balancing act between joists. You can see what you own, reach it safely, and stop losing things up there.
The cheapest room in the house is the one already sitting above your ceiling. Boarding it out costs a fraction of building anything new.
Raised loft boarding for homeowners across the region
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