Q What is PVCu?
A The letters stand for Poly Vinyl Chloride unplacisticised (or hard). It is a low conductor of heat and practically eliminates the problem of condensation associated with aluminium frames. It doesn't corrode and doesn't need repainting.
Q What are the advantages of PVCu windows over windows made with wood, metal or a combination of materials?
A PVCu is THE ideal window construction material because PVCu:
- Doesn't deteriorate or rot.
- Can be extruded and shaped into brilliant window designs.
- Doesn't damage or corrode when scratched.
- Can be fusion welded to eliminate air and moisture leaks at the joints.
- Offers excellent insulating properties—especially when used in multiple-cavity frame designs.
- Can be extruded and shaped into brilliant window designs.
Q Are there differences in the PVCu used by window manufacturers?
A Absolutely. PVCu is like any other man-made compound. There are numerous components in PVCu compounds and there are many PVCu manufacturers who produce numerous types and grades for window manufacturing. Lesser quality PVCu typically has problems with brittleness or impact resistance, colour consistency, and expansion and contraction. The best PVCu is a proprietary compound formulated specifically for manufacturing high-quality windows.
Q What makes one window stronger than another and why is window strength important?
A The profile design and methods of assembly determine the strength of a window. Just as beams or roof trusses are designed for specific mechanical loads, so are window shapes.
The strength of the sash and frame dictate how the window will maintain its shape under high winds. A weak window can flex and reduce the effectiveness of the weatherstripping, resulting in air and water infiltration and, subsequently, higher energy costs. A weak window design also requires near-perfect window installation to ensure an effective seal.
You'll have windows with long-term strength and squareness if you select windows with:
- All fusion-welded joints.
- Energy saver glass.
- Steel re-enforced frames.
- Energy saver glass.
A Advances in PVCu technology allow quality woodgrain PVCu laminates to replicate the appearance of real wood. It's very attractive and it often matches the colour of the wood trim in homes. An added benefit is that woodgrain PVCu laminates never need to be stained or sealed.
