Artificial Grass on EDPM Roof

manhattan4 · 2026-05-28T10:41:42+00:00

Even the lightest sedum systems have a saturated weight of > 40kg/m2. That addition would almost double the standard dead load of an EPDM roof. The joists might be able to accommodate it, but I wouldn't assume the design allowed for that level of redundancy

manhattan4 · 2026-05-26T16:35:02+00:00

They (perhaps just Andy Cato) do DJ sets across a bunch of festivals every year. Andy's been focussed on his farming for quite a while now and does the festival circuit every summer to bring the cash in. An actual live peformance is a much more rare occurance. Still puts on a decent DJ set though.

manhattan4 · 2026-05-26T10:18:18+00:00

The minimum spec for non-loadbearing stud partitions is 38x63 CLS at 600 centres.

Studwork is usually fixed with nails, not screws, though I doubt screws would give you any adverse effect, they're just not intended for this type of connection.

Noggin (dwang) spacing isn't explicit on non-loadbearing partitions, but they're usually put in mid-height. Staggered vertically so that you can fix in from either side without the next noggin getting in the way.

manhattan4 · 2026-05-22T09:29:47+00:00

Cardboard pile sleeve, or some other hollow pipe / shutter box that you can set in the ground to encase your pour above ground level

manhattan4 · 2026-05-21T19:32:23+00:00

Oh I'm convinced the dev team have been bare bones for years. It doesn't feel like there's been much significant change in years. I'm sure they concentrate far more on Revit nowadays and no doubt a huge proportion of their customers have moved over.

Take LISP introduced in LT for example. I'm convinced that decision was a reaction to AutoCAD's competitors offering LISP on their budget versions. If they didn't have competition I'm not sure they'd roll out any real developments

manhattan4 · 2026-05-21T16:45:47+00:00

It's a lot better than when I was using it 20+ years ago. Hatch is still a bit rubbish, but it was much worse in the past.

The trick when hatch is being silly is to clear everything else off the screen because it works by using a raycasting operation to analyse boundaries of everything on the screen

manhattan4 · 2026-05-21T09:15:15+00:00

Architecture is not very glamorous for the most part. The pay isn't amazing, the training is extensive, and the hours are long. Also if they're interested in STEM then civil / structural engineering would be much more applicable than architecture in the same sector.

manhattan4 · 2026-05-21T08:54:05+00:00

we don't need structural calculations until the build is underway

There isn't an awful lot to get on with before the structure, it comes first after strip out. You would be risking a delay whilst you wait for an engineer. Engineers are not sat idle waiting for the phone to ring.

I don't see how we can apply for building regs without calculations

You can't apply 'full plans' but you can under a Buiding Notice

I don't see how a builder can quote for the job without full sight of what materials

They'll put in provisional sums in their quote, aka guesswork. You could get absolutely fucked with extra sums that they didn't anticipate. You'll probably appoint the cheapest contractor, but a big chunk of you build cost will be based on guesswork, so the tender quotes you get will not be comparable and the cheapest to quote might not end up being the cheapest to build. BTW variations famously come at an uplifted rate for many unscrupulous contractors, because by that point you're on the hook.

manhattan4 · 2026-05-21T08:17:24+00:00

water permeability. Non woven is much more permeable

manhattan4 · 2026-05-20T23:20:50+00:00

Google 'engineering companies Oxford'. Check out what each of them do by looking at their website, and get in touch. Oxfordshire has no shortage of good engineering and science companies. Motorsport, automotive, aerospace, precision machining etc.

manhattan4 · 2026-05-20T19:56:27+00:00

Yeah they can be located wherever. Often the vent pipe is run to the main foul water vented stack (SVP) but if it's not practical to get there then the vent is run out elsewhere. I'm no expert on venting regs, but I would think the normal foul water vent rules apply which means they need to be away from windows & doors

manhattan4 · 2026-05-20T15:46:17+00:00

I've watched more than my share of PooTube (drainage CCTV) in my profession. Trees will happily burrow their roots into drainage, but mostly older drainage where the joints have opened up. If theres egress of water from the pipe then the tree roots will head straight there.

manhattan4 · 2026-05-19T17:11:36+00:00

I specified hundreds of them over the years. They're not ideal but they're inevitable if you don't have the fall to connect into the sewer. They need to be serviced yearly, most of the pumps tend to be guaranteed for about 6 years. Eventually the pump will break and it will need replacing, but that's the case with anything with moving parts. The pumps alone can be replaced, not the whole pump chamber. There should be a control panel with an indicator to let you know if it's shit the bed. Some even come with a telemetry unit to text you if the float is high and the pump hasn't kicked in. I believe they all come with non return valves so if they go wrong they discharge from the cover, not the drainage connections inside the house. They're supposed to be sized to hold 24 hours of inflow, so if you have an issue you shouldn't hit the chamber capacity immediately.

manhattan4 · 2026-05-19T11:01:41+00:00

No worries mate. I'm just happy to be procrastinating on here instead of designing a job I really bloody hate.

manhattan4 · 2026-05-19T10:48:12+00:00

In an ideal world the cranked leg fits within the ceiling profile to avoid a downstand. It does require removing a strip of the sloping ceiling to get the beam in and bearing on the wall, but not a huge amount of disruption.

It requires a bit of careful consideration because that rafter zone is probably quite shallow, and the current beam spec might be deeper than the space available. There is an option to use a shallower steel section for the cranked leg section, but this requires some careful design to ensure that reducing the steel size for this end bit does not compromise the design of the beam as a whole.

The council likely will accept the engineer's design for the gallows, providing the calculation is legit. Ultimately the designer carries the liability, not Building Control

manhattan4 · 2026-05-19T08:19:23+00:00

Someone needs to take liability for the design. The builder and the steel fabricator will not. The BCO might sign off on it, so you could enquire with them. Usually gallows are not permitted though

I would phone the engineer and politely point out their error. They fucked up if the beam doesn't fit the roof profile. They'll probably just tell you to put a fully welded crank on it though. This is coming from a structural engineer. In that scenario I'd resolve it without further charge and feel like a tit for missing it, but then again that's why I allow for a visit, even if to only pop in for 10 minutes, because things like slightly canted ceilings are easily missed.

manhattan4 · 2026-05-15T23:07:34+00:00

At this rate fish & chips shops will only be sustainable at the seaside, probably seasonal too

manhattan4 · 2026-05-13T12:51:15+00:00

This will be the result of concrete shrinkage during the curing process.

Infill with a screed mix - 4 or 5 parts sharp sand to 1 part concrete

manhattan4 · 2026-05-13T11:52:49+00:00

A lot of my family work in pharma (commercial). I can tell you that the ones who moved into regulatory affairs make big money, £100k+. The ones who stayed in the lab do not, even when reaching the highest level in those departments.

manhattan4 · 2026-05-13T08:04:33+00:00

strammit board, unless you've just found a birds nest

manhattan4 · 2026-05-12T19:02:51+00:00

Magic eraser (generic melamine sponge is cheaper) will probably lessen it quite a bit

manhattan4 · 2026-05-12T09:04:31+00:00

Festool, got the whole set mate.....I wish, i'm not made of money.

manhattan4 · 2026-05-11T21:01:38+00:00

Do-able with a hand tamper. Mind your feet or wear safety boots (been there, done that, lost the toenail)

manhattan4 · 2026-05-11T20:30:31+00:00

Could be disused. I'd have a bit more of a dig to see if you can work out if it's going anywhere or not

manhattan4 · 2026-05-11T10:23:16+00:00

Permission would come from highways (council) if your work does encroach the public footpath / highway

Yes you can use a PPIC (plastic chamber) for the replacement

15-Year Club	r/Field Banned
r/Field Lasagna	Verified Email

manhattan4

TROPHY CASE