Suspended Timber Floor Insulation U Value

Whether it s for a newly built property or to refurbish an old one flooring insulation on suspended timber floors can help to reduce your heating bills and your.

Suspended timber floor insulation u value.

Typical u values 65mm screed separating layer polythene sheet. The reality is that if you have a suspended timber floor then the u value before insulation is going to be upwards of 1 5 so achieving 0 34 w m k is actually quite a result. This simplified formula can be used for all types of ground floor including. The quick free and easy way to find out the insulation thickness and the u value you need for your building project.

Heat flow reduction of the insulation interventions. If the ground floor in question is of a suspended timber construction and whether this is a renovation or new build project then the insulation would normally. Ground bearing suspended concrete and suspended timber. All ground floor constructions unless very large commercial floors will require some insulation to be included within the floor zone to comply with building regulation requirements.

U value calculations to en iso 6946 for uk xt uf beam block suspended floor perimeter area ratio 65mm screed separating layer polythene sheet insulation with perimeter strips dpm 1200 gauge polythene or radon barrier beam and block suspended floor build up. The precise u value of the original timber floor alone is a slightly academic debate as often huge amount of heat will be lost through air infiltration through gaps etc. A suspended timber floor is generally found in upper levels of a new build or lower and upper levels in an older building where the joists run parallel and hold up the floor above. Many builders will baulk at this figure it was not long ago that installing 50mm of insulation in the floor was considered fairly advanced.

Floor covering assumed as 18mm chipboard. Insulating a suspended timber floor. A simplified method of calculating the u value of an uninsulated floor has been described in bre information paper ip 3 90. The same studies also highlighted that models might underestimate suspended timber ground floor heat loss.

The u values have been calculated assuming that the timber joists are 48mm wide at 600mm centres with a default fraction for the timber floor of 0 11 taken from br443.