ᐅ Two-layer instead of three-layer parquet for underfloor heating and glue-down installation?
Created on: 1 Jan 2025 20:50
A
Anteilseigner
Hello everyone,
We want to install engineered hardwood flooring (oak plank, wide board) with underfloor heating and cooling in our new build. The most common option is 3-layer click-engineered wood, which is suitable for both floating and glued installations. Because of the underfloor heating, we definitely want to go with glued installation.
Does it make sense to choose the thinnest possible wood flooring due to wood’s relatively high thermal resistance? I understand that the heating will run almost constantly, but won’t a 15 mm (0.6 inch) thick plank still respond too slowly? Will the surface temperature of the wood flooring even reach the same temperature as the screed (29°C (84°F))?
There is also 2-layer engineered wood (10 mm (0.4 inch)) with a wear layer of 3.5 to 4 mm (0.14 to 0.16 inch). If glued, does this have any disadvantage compared to a 3-layer construction (15 mm (0.6 inch)) with the same wear layer? As I understand it, a 3-layer construction is only really necessary for floating installation, right?
Thanks for your input! Best regards
We want to install engineered hardwood flooring (oak plank, wide board) with underfloor heating and cooling in our new build. The most common option is 3-layer click-engineered wood, which is suitable for both floating and glued installations. Because of the underfloor heating, we definitely want to go with glued installation.
Does it make sense to choose the thinnest possible wood flooring due to wood’s relatively high thermal resistance? I understand that the heating will run almost constantly, but won’t a 15 mm (0.6 inch) thick plank still respond too slowly? Will the surface temperature of the wood flooring even reach the same temperature as the screed (29°C (84°F))?
There is also 2-layer engineered wood (10 mm (0.4 inch)) with a wear layer of 3.5 to 4 mm (0.14 to 0.16 inch). If glued, does this have any disadvantage compared to a 3-layer construction (15 mm (0.6 inch)) with the same wear layer? As I understand it, a 3-layer construction is only really necessary for floating installation, right?
Thanks for your input! Best regards
N
nordanney1 Jan 2025 21:34Anteilseigner schrieb:
Do I actually reach the same temperature on the surface of the parquet as on the screed (29°C (84°F))? I just measured. Room temperature is currently 21.7°C (71°F), parquet surface temperature 22°C (72°F), heating supply temperature 21°C (70°F) (residual heat, since the heat pump hasn’t been running since about 5:30 PM because it’s 7°C (45°F) outside).
With annual heating costs of €375 for 120 sqm (1292 sq ft), it really doesn’t matter if you use 2% more or less energy. That’s what I mean by "it doesn’t matter" which type of wood you choose.