Measuring and Installing Windows and Doors
- Most window and door suppliers will insist on visiting the site to measure the openings themselves. This is because the actual size of the built openings often differs slightly from the construction drawings.
- It's crucial to leave enough space around the window or door frame for applying specialist airtightness foam, which helps prevent any gaps.
- A frame that fits too tightly can make it difficult to apply the airtightness foam properly.
Airtightness and Installation
- Bonding the airtight membrane to windows and external doors is a critical, time-consuming task that requires careful attention to detail.
- Poor workmanship during installation, especially around airtightness detailing, can significantly reduce the thermal performance of even the best products.
- It’s often best to have an experienced person oversee the installation team to ensure the job is done correctly.