When your flooring installer ask if the heat is turned on during cold weather, it is not because he does not like to work in the cold. It is because cold carpet does not work the same way as a carpet at proper room temperature. The carpet gets stiff and may not stretch properly or set on the tack strip correctly or even seam together as well. The cold subfloor and air surrounding the area of installation effects the materials how well the stretch and seaming holds up long term. Even rooms just heated will have a cold subfloor and when the product is laid upon it can have the same results. This is why the following guidelines must be followed.

The installation should not to begin until the HVAC system is operational and the following conditions are maintained for at least 48 hours before, during and 72 hours after completion.

The carpet is to be installed 48 hours after the indoor temperature is 65-95o F (18-35o C) with a maximum relative humidity of 65%. The substrate surface temperature should not be less than 65o F (18o C) at time of installation. 

After installation the temperature of indoor carpeted areas should never fall fall below 50o F (10o C), during the life of the carpet.

NOTE: If the above conditions are not met, installations may be susceptible to moisture related failures including but not limited to dew point condensation, seam failure and wrinkling of the carpet.

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