An easy way to make sure you comply with these regulations first off is to use a company that complies with schemes such as BSI, CERTAS or FENSA. You can then be sure that they’ll be able to deal with the admin and certification issues properly… and it goes without saying the K Design & Build do all of these things!
So in a nutshell, there are four main areas covered by these regulations for doors and windows. First is thermal performance, focusing specifically on U-Value – the amount of heat passed through the window/door. Keep a close eye on this; regulations have been tightened up in recent years, and differ between extensions and replacements. If any manufacturer doesn’t understand what you’re asking when discussing this, walk away – they should be fully aware of these ratings.
Safety is the second area covered, with special concern for safety glazing on instalments in ‘critical areas’ – again, the manufacturer should understand this automatically. Fire safety and means of escape – the third area covered – also need to be considered, for extensions in particular; installing escape windows on the first floor and higher is good practice.
The last element covered focuses on air supply and ventilation, and after it was discovered that having airtight rooms – a result of double-glazing and draught-proofing – brought its own hazards, ventilation has become a top requirement for building work. Bathrooms and utility rooms need more ventilation than most other rooms though, so the level of air supply is dependent on the nature of the work itself.
One last thing to remember is the nature of regulations surrounding bay windows. Whilst they make for an awesome feature in your living or dining room, they’re tricky; they are usually treated as an extension in terms of building and planning regulations. So, if you want to add a bay window to the current house as opposed to the extension, you’ll have to get building regulation approval for that as well. Once all of this is figured out, you’re all set for your new space!