Sternfenster has announced that it now supplies doors constructed using the Gripcore composite door technology from Doorco.
Gripcore doors are made using a hybrid of cross-laminated engineered hardwood, laminated veneer lumber (LVL) timber, and hardwood stiles and rails, pressed with 4mm GRP skins. This design means they will not move, bow or twist more than 3mm.
Sternfenster’s sales director Nathan Court said: “Our doors, built using Gripcore technology iron out many of the irritations that installers have had with traditional composite doors, namely, warping and cracking.
“Too often you are called back to a job because the homeowner says the door won’t close properly. This is because the temperature on the outside and inside are wildly different, which puts the door under a lot of thermal stress. The way Gripcore doors are engineered irons out those issues, and you are left with a product that not only feels substantial, but can tackle the challenges that the great British weather throws at it.”
Gripcore doors can achieve a U-value of 1.0W/m²K or better.
