Installation details

Homerit PVC-U windows and doors can be installed by experienced builders or window installers.

Normally frames and double glazing units are packaged and delivered to the building site separately. After the frames are installed, windows and doors are glazed onsite.

For some projects we provide onsite glazing service if the builders cannot do site glazing.

Direct fix: 

Here you can find the installation details for direct fix. Click the figure for your cladding system to open/download the PDF file.

Cavity construction: 

Homerit PVC-U window bottom frames are fully supported by timber jambliners underneath the PVC-U frames thus sill support bars are not needed. This can save both labour and material costs of window installation.

PVC-U frame fully supported by timber jambliner

Here you can find the installation details for cavity construction. Click the figure for your cladding system to open/download the PDF file.

Solid construction: 

Precast or light weight block walls are common in Europe and many other countries. Standard European PVC-U windows and doors do not have flanges or jambliners. Long sleeved anchor bolts, passing through the profile and into the structure, are used for fixing PVC-U windows and doors into the building structure.

Homerit provides three installation options. (1)with flanges and jambliners – this option suits GIB board inside. (2)with flanges but no jambliners – this lower cost option is good for water tightness. (3) no flanges and no jambliners – this is the lowest cost option. We recommend discussing with your local council for approval before purchase.

  • Precast concrete panel – Fig 1.11
  • Block wall with flange no liner – Fig 1.12
  • Block wall no flange no liner – Fig 1.13

Rebate recommendation: 

PVC-U window and door frames are bigger than typical aluminum window and door frames. We recommend not having jambliners under the door frames. We also recommend that doors are rebated into slabs etc.

The following figures show recommended rebate details for different types of doors. When different types of doors are coupled together or when doors are coupled with fixed windows, all relevant rebate details shall be checked to determine rebate height.

  • Heavy duty casement door inward and outward open – Fig 5.1
  • Standard casement door inward and outward open – Fig 5.2
  • Fixed window heavy duty and standard frame – Fig 5.3
  • Outward open bi-folding door – Fig 5.4
  • Inward open bi-folding door – Fig 5.5
  • Heavy duty and standard sliding door – Fig 5.6
  • Stack door – Fig 5.7
  • Tilt and sliding door – Fig 5.8

Fixing Recommendation:

1. Perimeter fixing shall be sited as follows:

a) No fixing 150mm from a corner, both vertically and horizontally.

b) No fixing 150mm at either side or a transom or mullion where it meets the outer frame.

c) Fixing shall occur no more than 400mm centers between fixings at corners, transoms and mullions.

2. Care should be taken so as not to over-tighten the bolt or screw fixing as this may result in frame distortion and/or reduced performance of the window or door system.

3. Additional fixings may be provided at the discretion of the architects and dependent upon the specified quality of the structure and building materials.

Installation procedure:

1. For timber framed buildings, prepare the window/door opening according to NZBC Acceptable Solution E2/AS1 for wrapping of framed opening.

2. Check sill structure for level and straightness. Make adjustment if necessary.

3. Wedge the window or door into position using packers to achieve perfect squareness. Do not bend the framework by over packing.

4. Secure the window or door into framed opening according to installation details and fixing recommendation.

5. Close and lock all opening sashes, check for squareness within the outer frame.

6. Remove all protective tape from the faces of the window frame, clean where necessary with warm soapy water.

Hardware adjustment:

Thanks to the innovative design of the hardware system, certain parts of the hardware are adjustable. For more details click. Siegenia Maintenance Instructions.

Replacing windows …

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