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Windows Re-call
| Question | Answer |
|---|---|
| What is the purpose of a window sill? | The sill is the bottom horizontal member of the window frame and supports the window while helping to shed rainwater away from the building. |
| What is the head of a window? | The head is the top horizontal member of the window frame. |
| What are jambs? | Jambs are the two vertical outer members of a window frame. |
| What is the function of a mullion? | A mullion is an intermediate vertical member that divides a window into separate sections. |
| What is a transom? | A transom is an intermediate horizontal member between the jambs that divides the window horizontally. |
| What is the purpose of anti-capillary grooves? | They prevent rainwater from tracking back underneath the window sill into the building. |
| What makes a stormproof window different from a traditional casement window? | The sash is rebated to overlap the frame, reducing the chance of driving rain entering the building. |
| How are timber casement windows traditionally fixed into new brickwork? | They are built in as the brickwork rises and secured using frame cramps or fixing devices. |
| Why might a temporary profile frame be used? | It is fitted during construction when the actual window cannot be installed until the brickwork has dried and stabilised. |
| What are the three methods of constructing bay windows? | Pre-built bay, built bay and supported bay. |
| What is the difference between a built bay and a supported bay? | A built bay increases the room size by extending the structure, while a supported bay projects externally without increasing the internal floor area. |
| How are bay windows normally joined together? | They are joined using corner posts or by screwing specially manufactured window sections together. |
| What is the first stage when fitting a bay window? | Fit and level the window sill, then install the first end window, ensuring it is level and plumb. |
| Why should the front window of a bay not be fully fixed immediately? | It may need slight adjustment to allow the final window to fit correctly. |
| What materials are commonly used for window boards? | Solid timber, MDF, plywood, blockboard and plastic. |
| What are the three basic steps for fitting a window board? | Cut to length, pack to the correct height and level, then fix securely using nails or plugs. |
| Why are traditional sliding sash windows less common today? | Casement windows are easier to manufacture, install and maintain. |
| What is the first step when replacing sash cords? | Remove the staff bead, cut the cords supporting the bottom sash and remove the bottom sash. |
| What are the advantages of pivot windows? | They provide greater ventilation and can act as fire escape windows from upper floors. |
| Why are pivot windows less common on ground floors? | Because they create a greater security risk, as they can provide easier access for intruders. |
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