craig

They are fine, 3mm is substantial enough but I personally prefer them having something solid underneath and non slip. All they will do is put that down and then sit the door on top. Make sure they seal along the length before sitting door on top to stop water penetrating further back.

It’s effectively a tray as the threshold doesn’t tend to go all the way out, thresholds are generally the depth of the door frame. something mire substantial would be a 20/30 height timber and wrapped in aluminium. Something like this but you either sit the door on top ir recess the timber to make it as flush as possible. The aluminium can wrap underneath and back if required. Usually you have to have this made. You can ask them to make it for you.

Are you meaning like a tray that sits under the door to prevent water going further back under the threshold of the door, or standard threshold/extended threshold that projects further out? Is it an entrance/side door, lift and slide, French door (inward/outward)?

Have you bought it? I have about 20 metres of ME508 available (100mm depth).

What is your external reveal finish? Brick, render, cladding or a mixture? Cills/Sills are pretty straight forward, minimum 20mm overhang but recommended overhang is 30mm and a max of 50mm. From the known window position count from the front face to the external finish, then add 30mm for the minimum overhang. Then add 16mm from front facing of aluminium, to the face of the timber of the window and an additional 8mm for the rebate in the frame (check this is correct with Norrsken about the 8mm). The rebate will sit back a further 8mm (maybe more, but 8/10mm is standard). Sills are always the same width as the window, unless specifically requested otherwise. Now choose the right end cap, they will likely offer 2, straight up (brick), straight up and over (render/cladding). Make sure they supply the right one.

If you want any assistance, let me know. I’d be happy to have a look over it for you.

I’m heading to Chard today, so there’s a possibility that could happen lol An example, Aluplast Ideal 8000 has an air permeability test result of class 4. Which equates to following under EN 12207 Class 0: no performance determined Class 1 → Class 4: increasing tightness levels Class 4 = best performance — minimal air leakage under up to ~600 Pa pressure. EN12208 watertightness, class 9a

They are uPVC systems 😉

Yes, the likes of Internorm, Aluplast, Gealean, Kommerling, Dako, Rehau etc. have air permeability test results according to EN 12207.

Good quality systems, will have 15 to 30 year product guarantee. Same question goes to timber / aluminium to be honest.

I’m at the stage of it works and performs, it doesn’t really matter if it’s uPVC or timber alu. Lot’s of personal preference of course but you can save a lot and obtain the performance with a good uPVC system.

Double glazing should be 1.1Ug or 1.2Ug argon filled 26/28mm, there is no excuse for it being higher. If it is, I’d be looking elsewhere.

It's cool, so I just put a Rehau Synego 1000x1000 Upvc (white/white) window together as well as an aluminium window and timber alu window. uPVC exact same spec same spec for all, no change other than glass. Spacer bar is a warm edge spacer, glass for double is exactly the same (1.1Ug toughened 4/20/4). Triple is 0.5Ug 4/18/4/18/4 toughened, none have extras or locking handles. Double Fixed - £250 per m2 Tilt and turn - £350 per m2 (exposed hinging) Tilt and turn - £395 per m2 (concealed hinging) Triple Tilt and turn - £410 per m2 (concealed hinging). Aluprof aluminium, double Fixed - £350 per m2 standard RAL inside and out. Figures are rounded up for simplicity. Timber aluminium (triple) Gutmann Tilt and turn - £775 per m2, finger jointed pine, standard clear lacquer, standard RAL.

I’ll give you an example in an hour.

As I say, it’s a very open question. What glass specification, float, laminated, toughened, locking/non locking handles, fixed, turn only inward/outward, tilt and turn, reversible etc. Double is likely to be somewhere between £300/£600 and triple £400/£800 but a lot depends on spec, manufacturer discounts (which can vary even with the same manufacturer) supplier markups and so forth.

Ahh, that depends. It’s very open to a lot of things. Somewhere in the £400/£800 region system / supplier / manufacturer dependent I would suggest.

Windows are tested at a standard size of 1230x1480. However, for a 1000x1000 window (1 m2), I’d be expecting 1.2Uw to 1.4Uw for double and triple should be 0.7 to 0.85Uw. There really isn’t any excuse for a double being 1.4Uw unless the frame is s**t and the glass is the same. If triple is around 0.85Uw, it’s not the best Uf value (frame) and sitting around 1.0Uf with 0.5Ug glass or higher Ug (0.6/0.7 for example) but a better Uf.

The just might be going going forward, groups buy up manufacturers all the time.

They aren't. Dovista own the likes of Slovaktual, Weru, Rationel, Velfac and others https://dovista.com/dovista-brands/

Let me know if I can help @fatgus drop me a message if you would like to.

Side hung garage door panels are usually 40mm, sectional garage doors can be 60mm. If you need any assistance, drop me a message. Remember that a good triple glazed door would be supplied with a panel or glass at circa 48mm (not including entrance style doors).

Is it just aluminium? Sleek look with minimal sightlines. You’re looking something like Solarlux Cero, Cortizo, Q-Fort, Reynaers, Schuco etc. These can be a bit pricey.

They are tbf.

I hate to say it, we don't have the standard of workmanship or mass builders capable of achieving it. Training the trades will take a long time and a lot of "we know better attitude". All of them do the builds on the cheap, cut corners where and when they can. As an example, I wouldn't trust Bellway to run a bath. Smaller more independent builders have come a long way but in my opinion, we are still miles behind achieving anything like this on a mass scale. The recent warm grant scheme should highlight the amount of charlatans that are around.

Oh I do not disagree, it’s a ****ing eyesore.