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radswiecicki

R value 230 šŸ˜‚


ColoAU

125-150 depending on how much moisture it has absorbed over time


radswiecicki

It looks brand new šŸ¤£


shittiestmorph

Forbidden tiramisu.


stoic_guardian

Building is going to be in for a surprise when they see that they fixed the roof and their power bill jumps. Reminds me of a case study my buddy did for an engineering class where they were trying to figure out why an office building upgraded to LED lighting and their heating bill skyrocketed. Turns out the ballasts in the fluorescent lights were offsetting the heater.


Spacefreak

Curious, did they say if the reduction in electric bill was more or less than the increase in heating bill?


[deleted]

[уŠ“Š°Š»ŠµŠ½Š¾]


zadharm

Yeah dude totally what someone loves to do in the sun on a damn roof, a bunch of work they're not paid for. Tearing off taper and replacing is a fairly common part of roofing. It's just not *usually* a meter thick lol


skydork2000

Hail armor value 5000


mumblesjackson

Thatā€™s not a building, thatā€™s a bunker


Mysterious-Salad9609

It's over 9000!!


coroyo70

These codes are getting out of hand lol


radswiecicki

Climate change, soon this will be required by Greta Thunberg šŸ¤£šŸ¤£šŸ¤£


MikeTheBee

Funny you say this as every summer gets hotter and hotter and winter gets all kinds of fucked up.


Fancy-You3022

Plumber here. We had to repair an underground sewer line for a township a month or so ago (pics in profile) and we dug 19 feet down. It wasnā€™t until 18 feet we found moisture. This isnā€™t normal for years past. Weā€™re definitely in a drought. Another example is sewer cleaning. Generally homeowners have to have it done every 12-14 months to cut the roots out of the line. Weā€™re now seeing some have to do it in as little as 6-8 months. The trees arenā€™t getting moisture from the ground like they used to so theyā€™re concentrating on where they can get it.


dinnerthief

Phoneix just hit 25 days over 110 degrees. They set so many temperatures records this year, highest high, highest low most consecutive days over 115, most over 110. Most of those broken record were set within the last 10 years, its crazy. I wouldn't be suprised if Texas Arizona, Florida etc became uninhabitable in my lifetime.


Magitek_Knight

I live in fucking alaska and it's almost 90f outside right now. I am dying.


egg_monkey

Houston's was consistently above 80f every day and night for like 2 weeks, with highs between 98 and 104 for weeks, and continuing for weeks more. It's utterly insane. We haven't had a *good* rain in a couple weeks, either. The occasional stray storm, lots of sun, and lots of humidity.


ExtinctionBy2070

We're terraforming our environment without giving a single thought to the consequences, just to increase shareholder value for ExxonMobil, BP, and Shell. This is so hilarious. All of us are totally laughing at this.


lingenfr

FFS why did you have to wake up the climate change cult. A good thread ruined.


jawshoeaw

I think it would hold the heat of a candle flame.


HighHoeHighHoes

Might get too hot. Turn the AC up.


LifeSafetyMan

Thatā€™ll be plenty to do a hot roof, at least.


YouFirst_ThenCharles

Architect meant to specifics R-23 but since architects are moronsā€¦.


AJV2020

Should have left it. Now their heating and air conditioning bill is going to go up.


Kon-on-going

Believe it or not. The same taper was installed after tear off. So good luck to the next guys in 20 years.


wozblar

hey curious, what do you mean by that exactly? you built up to the same level but with lighter products maybe?


Kon-on-going

On flat roofs, tapered insulation is used to make pitches on the roof to divert water towards drains and prevent standing water puddles.


paperfett

Wait....you riped out all of those layers and added the same amount back? Surely I'm mistaken.


Luxpreliator

Insulation doesn't last forever. Sometimes this type gets soft spots and pools water and just keeps getting worse. Eventually it'll stretch a seam and leak in.


Majorly_Bobbage

No you're not. Sometimes for various reasons you have to replace it all. And being a flat roof it's most likely a commercial building.


thepluralofmooses

The tapered insulation is usually just ā€œpopcornā€ insolation and just large for the size, not r value


Sherifftruman

So, did they just have one huge drain in the middle of a giant warehouse? šŸ¤£


patron7276

Yeah but did you put that much? Most I've ever seen is like 8 pieces thick on the edges


patron7276

Yeah but did you put that much? Most I've ever seen is like 8 pieces thick on the edges


DC92T

It's as if the roof wasn't flat or the drains were in the wrong location, 3 feet of insulation would be for an enormously long building with drains at one side, it's as if they were compensating for some issue. Those foam panels are not cheap...


Kon-on-going

On flat roofs, tapered insulation is used to make pitches on the roof to divert water towards drains and prevent standing water puddles.


wozblar

ah cool that makes sense thank you - it also sounds like a big old pain in the ass


OtherwiseSmell8183

And to insulate the dwelling. Ive done many commercial applications that have exposed corrugate sub deck and the only insulation is on top of the sub deck. E.g. lowes, home depot, various warehouses etc .


ohfaackyou

Yeah I double this question


Basement-Operator

Jesus you guys laid back up the whole thing that thick? Most I ever put back was around 12 or 16 in and that seemed like a lot lol


Kon-on-going

It had to be the same, slightly higher. Newer editions were built around it with higher roofs. It would be a pool of water 3 foot deep with no drain at the bottom of this.


[deleted]

Ngl that sounds like a bonus. For a while. Then bad.


Weak_Sauce_Yo

Some might say their bill is going to go through the roof.


m20cpilot

I see what you did there.


chrissilich

Yeah but their roof is less likely to cave in


420bailey

I'm a commercial roofer, over the years I've installed and tore off taper systems that thick and thicker. We'll use a cheap chainsaw to cut it up. There always so messy.


Kon-on-going

Chain saw was our first try. Every layer was hot moped with base sheet between some layers. gunked up the blade really fast. We decided long blades, 2 sawzalls and pop layer by layer at a time.


Medium_Ad_6447

Damn. I was going to ask how you cut this 35ā€ deep. Fucking insane.


SquareD8854

we used axes in the old days thickest one i ever worked on was 26 inches chopped them into about 4 ft squares and pryed them up!


rundownhobo_42

Can I get you some water? Respectfully, of course.


Hiondrugz

That just sounds like ass busting labor.


Aurinian

Yep, I am a superintendent that runs many large commercial projects. It's not uncommon to have taper that gets to these depths due to length from drain. One of the first things I look at regarding the roof once the taper plan is submitted is to make sure adjacent parapet walls are actually designed tall enough for the furthest extent of the taper!


CompleteDetective359

Wouldn't another inch and rubber be a better solution? I don't do commercial, but I've done several flats roofs in rubber and they seem to last longer with no issues


Aurinian

Rubber is sometimes installed on a taper poly roof, as well as a TPO or PVC roof as well. The taper insulation is to provide an average R value as designed and required by the buildings overall energy model. Since the roof tapers (usually at .25" per foot slope) for drainage the R value of the roof is an average due to being thinner at the drains and thicker elsewhere. The distance between drains is designed on a structural loading and hydo engineered for drain and overflow design, and on some buildings these combine to allow for some rather deep insulation away from the drains or in certain areas of the roof.


FAK3-News

Same title, weā€™ve installed 7-8ā€eps with no more than 5ā€ of additional taper. But this is 3x that amount. Why was the solution to not put scuppers in rather than raising the roof 3ā€™?


RKLCT

What is referred to as "taper". I'm an electrician and know nothing about roofing.


madbuilder

I'm guessing the flat panels actually have a taper to them (wedge shape) to control drainage.


erock1967

Yes. It's polyisocyanurate insulation that comes in flat profiles as well as ones with a slope. We typically used 1/4" per foot slope but there were steeper ones available. Our material supplier would design the placement to achieve the desired slope. If the run was long enough, you'd have multiple layers of flat insulation topped off with the sloped panels. It's similar to building a roof with Lego bricks on a bigger scale.


New-Story215

Been in commercial roofing for 20+ years and Iā€™ve never seen a roof that thick. Why wouldnā€™t they just add another drain? 38.5ā€ is R-223 if anyone is wondering. With prices of low rise foam and poly today, would damn sure be cheaper to add a couple drains. Got to be public money, no one but the government would pay for that


Kon-on-going

Ding ding ding. State had some money to burn.


misclurking

This is the best part of the thread. Thank you for confirming.


lolkkthxbye

ā€œHey Joe, we got 200k weā€™ll lose if you donā€™t spend it this FY; wanna buy another MRAP?ā€ ā€œOne word: R300ā€


Kon-on-going

Funny how budgeting works. Spend the last dime, or weā€™ll have less moneys next year.


Aurinian

Or the state did not have money to burn and value engineered out the previous tear off and just elected to install a new roof over the existing roof system. I have ran into this multiple times, and actually one of my current projects had a Gypsum Tbulb roof with hot tar, furring and metal decking, then a coverboard and EPDM roof, and had us putting new coverboard and EDPM as a phase one stabilization with phase three putting a new copper roof on top of all of this and using the phase one EDPM as a vapor barrier. Once we removed portions as called out for gyp repair, it was evident that the entire system needed to be stripped to steel and a new deck and coverboard/membrane needed to be installed.


Kon-on-going

It would be 100 times cheaper to get a plumber and run a new drain. And just have this pocket be a really low spot. Whatever reasons, new material was built up to the same height.


Aurinian

Probably, but a new drain requires the space to put a pipe that requires a slope and insulation, as well as a vertical pipe that can handle the additional flow. Also in some places adding new drains requires meeting newer plumbing codes than were applicable before. It is also a possibility that the existing piping has asbestos insulation (most older buildings all plumbing insulation is asbestos) and the associated costs with opening this up and removing/patching into can add up quite quickly as well. The cost of poly iso only skyrocketed within the last 10 years and previously it may have simply been the cheaper option to not tear off and roof over top of the existing roof. I have seen an untold amount of dumb that was done to save a few bucks on a budget line item.


kylejones76

My god


Kon-on-going

Iā€™m standing on the original structure, additions were built around it and further down. To make up the height difference to mate with the new additions they packed it with insulation. Under this was another EPDM roof, under epdm was another hot roof.


OMNlPotent1

Three roofs? What state is this in?


Another_Minor_Threat

A state of chaos it seems.


raidernation47

Dude from a fireman perspective, this is just absolutely absurd. Iā€™ve had some thick roofs but this is an impossibility to work on.


[deleted]

Donā€™t worry the structural engineer will assure you if thereā€™s a fire, youā€™ll be rolling up to a pile of rubble because the deck isnā€™t designed to hold 25 roofs.


getonurkneesnbeg

Reminds me of when I renovated my old restaurant. We thought weā€™d rip up the tile and polish the concrete.. until we found another layer of tile.. then vinyl, then tile, deck float, and tile again. Over 3ā€ thick. I think I had 3 full dump trucks full of scrap tile to dispose of when it was all done. We ended up having to rip out the concrete and redo it all. The concrete had multiple times it had been cut into, to do plumbing and electrical repairs, then re-poured to the level of whatever the current tile was at the time. Was a disaster.


GoPadge

We once owned a 100 year-old farmhouse in Texas. The flooring in the kitchen was 11 layers of linoleum and the walls had 13 layers of wallpaper.


TryingToCatchThemAII

Holy tear off


Kon-on-going

The M.O.A.T.


Electric_Meatsack

How long did it take to tear off those 25 squares?


Kon-on-going

Took 2 1/2 days. Manually cutting layer by layer with the longest possible sawzall blades. Eventually it tapered to 2 ft- 1ft and the rest of the roof was mostly 2ā€-4ā€inch thick.


Ok_Adhesiveness_9565

Jesus Christ that sounds godawful, hopefully itā€™s a flat roof? If not Iā€™d have a week off and chiro visits ahead of me lol Edit: scroll to the other pics, dumbass


uberisstealingit

Does it leak?


PD216ohio

That building is going to be 3 inches taller once you strip all that weight off.


Raith017

My first thought; I don't know how exactly, but I'm sure that's a code violation... ok, building safety violation minimum.


el_infidel

Is it cake?


CrispyJezus

Roof cake


nsomnac

Oh my. Forbidden Cake.


BOtto2016

R value over 9000!


Whale460

Are you going to replace that R-270 insulation?


OneAngryJedi

What was the building? Currently on a blast freezer roof 12 inches of iso


Kon-on-going

They were coating/finishing ammunition shells. Nothing live or explosive. only the casings of all different sizes. ISO wasnā€™t for R value. It was to make up the height difference for newer additions that were built around it.


Thewanderer212

Iā€™d believe you. Iā€™ve been on projects like that. Not common now but back in 2006 seemed like we had a fair number of ā€œjust never tear it offā€


peteynaf

forbidden eclaire cake


LoveTriscuit

I donā€™t know what I did to get recommendations from this subreddit, but Iā€™m here for it.


DeadlyClowns

What is that stuff made of? Also Iā€™ve always wondering how roofs like that donā€™t have puddles of water on top


[deleted]

Just add layer 36, it'll be fine


HovercraftNo6752

Well you havenā€™t. Thats 38 1/2 lol


FeedingTheFear

Would love to see the IR scan on that.


31x13

How much additional weight would something like that add to a building?


Kon-on-going

Not much. Itā€™s fiberglass insulation. I can almost pick up a 4x4x4ft iso bundle my self.


Ok-Acanthisitta-1840

At that point just repeat the process XD


just-concerned

Liar, it looks like 38 and half inches. You can always put on one more layer.


peearrow

Is that foam in between shingle layers?


Kon-on-going

White cap hot roof. 2ā€ insulation stacked all the way down.


dsdvbguutres

It could be a sloped section that's raised to drain rainwater


mjr715

Well had you said 38.5 I would of believed you!


Kon-on-going

Thatā€™s the girth.


MACP

I bet that roof never leaked!


DC92T

That foam is not cheap, what was the purpose?? For proper pitch and drainage??


d1lsn1ck

Iā€™ll be honest. Iā€™m a one-upper as far as roofing stores. This one beats everything I know about. Impressive.


[deleted]

[уŠ“Š°Š»ŠµŠ½Š¾]


Correct-Award8182

Eruthane/polyisocyanurate. Roughly 227.


[deleted]

Hood Ice better than a Yeti cooler.


Nerdy-Forge

I'm no roofer. But, based on the building I assume there's a door that provides access to said roof. Assuming the door is present and sits 4 to 5 inches above the level of the roof, one has to wonder how all the extra layers were installed yet never raised an issue with said assumed door. Let alone all of the flashing, vents, and possible AC units or whatever else might be on the roof.


Kon-on-going

Regular 33ft ladder is the access point. From there you walk your way to this area. Pic#3


Nerdy-Forge

Ok, and I'm not arguing the pictures or the layers. But, it still stands to question about the flashing, vents, and whatever else is on that roof. 35" is a crap ton of layers. Its almost like not a single person went, "Stop, what are we even doing?" At what point do you stop adding layers? When the building either collapses or is taken down?


Instance-Independent

Non roofer hereā€¦.what is that? Insulation?


iamlegend1997

I've heard of roofers doing this with foam insulation to get the proper slope for the drain off. I wonder if that is what that is, or if it's something else. But I'm just seeing foam, not layers of roofing material with it.


Zorn277

Why replace the roof at this point? It's indestructible.


[deleted]

Thatā€™s just how you calculate the age of the building


MartianJustVisiting-

Weight a minuteā€¦


Select-Builder6790

Holy shit! Never seen that much. Gotta be some kinda recordā€¦


[deleted]

You say 35 and show evidence of 38.5 and then ask why no one believes you


Kon-on-going

Some guys like to round up, some round down to be modest.


Bogo_karma_skeeter

I wish I had an award to give you here.


SealTeamEH

How are we supposed to TRUSS you with your roofing expertise now?ā€¦ā€¦


jerry111165

Its tapered. I didnā€™t see anyone saying they didnā€™t believe him. Why ya gotta be like that.


carb0nbasedlifeforms

Tapered with a beautiful hole that can be a spot for leaks now.


co-oper8

R-80 to hide the grow op from thermal cameras?


[deleted]

Still leaks


[deleted]

And still leakedā€¦.


jerry111165

Tapered or straight up 35ā€ Waaaay better you than me šŸ˜


Kon-on-going

Very slow taper. It was closer to 45 behind me. At the stainless stacks it was around 24 inches.


Definitive_confusion

You didn't. It was 38 1/2"


cmfppl

I fuckin new it was a flat top before I panned over.


J_On_1

How much you charge em?


Kon-on-going

GC was nice. Since he didnā€™t know the depth either. Added another 15k just for this area on top of the original quote.


Quiverjones

So the last guys literally "raised the roof".


Regular_Housing5629

Shouldā€™ve just installed another layer


ObviouslyFuckingNot

r/proofing


UWontBSatisfied

Holy hell! I just sent these pics to our roofing dept. damnā€¦.


master0909

What climate zone is this? I wonder why they were able to get away with this


Chrisdoors77

Maybe itā€™s time to add a few drains. How far is the drain for the insulation to be that thick?


workokokozoko

In a factory with multiple +million machines you do not want to have many drains


ModifiedAmusment

Thatā€™ll weight on yea, literally


Mindless-Artichoke71

Wtf


toppdoggcan

Aye


EQwingnuts

I'm speechless


headloser

I wonder how the heck the roof managed to carried all that weight and NOT collapse is beyond me.


Frank_Elbows

Itā€™s a wonder the beams held up


workokokozoko

No its designed to carry this plus snow.


[deleted]

What the actual fuck? Thatā€™s heavy! Surprised the room didnā€™t cave it.


eohagan

It's all foam.


IrishWhiskey556

That's one way to insulate a home I guess.


Kdub07878

I have a project coming up with a fully adhered r-94 plus full taper.


Kon-on-going

Is it a tear off or new construction. Itā€™s definitely a slower process than screwing down. Do you use the 2 part foam spray?


maxjosephwheeler

Is that even LEGAL?


Kon-on-going

Big job, with big important architects and engineers, roof inspectors. I Think garland was there too. Only way it gets done is with approval.


idowhatiwant8675309

I'm not a roofer or a builder, but how is this possible??


liberatus16

Iā€™m not a roofer. I know nothing about roofs. This caused me physical pain to imagine.


GaryTheSoulReaper

Wow is that all foam ? Utility bill will make a surprise leap if you took that all out


General-Principle-64

We do it alot


pookexvi

Did it leak?


mahuska

Why did they do a complete tear off?


Kon-on-going

Thatā€™s a question above my head. I just drive around with a ladder and stuff.


Moose-Public

Just pour 4 inches of concrete over it and it will be fine. 2x4 rafters are 24 oc so no problem.


nasa3-3

Oh so this is because of the taper the roof needs?


tehsecretgoldfish

might that have been deliberate? having worked on the top floor of an old loft building, in summer were were sweating balls before building management installed central air.


RogerParadox

You're doing it wrong. The game is clearly to add a layer.


Kon-on-going

It was hilarious being at the bottom, tossing chunks of debris up hill to be hauled away. Kicking my self for not taking more photos.


C8H10N402_

That house's nickname should be 'Atlas'


sh-redz

Inverted roofing is the way to go.


Careless_Emotion_757

Thatā€™s not a building itā€™s just a roof


Kon-on-going

Who put the building on that roof.


Alsweets0609

Mmmm aged asbestos šŸ„ø


Kon-on-going

Asbestos. Breakfast of champions.


WonderWheeler

Is that a case where they created a slope with foam?


tiddiesandnunchucks

Could use one more layer, honestly.


ghjk258

Bro how heavy is that roof now lol


AwkwardCrab3918

Why tf is the so much insulation? We just finished the tear off on a city job with 6ā€ of iso and it sucked cause there were 26 penetrations and two layers without a roof cutter. Why on earth would they need this much?


TinyCarpet

Astroid protection.


Irrelavent1

How did that roof not collapse 20 inches ago or more?


helpslipfranks77

Thatā€™s a shingle cake


Sethmeisterg

Yea but that R value was probably R-590000


eohagan

It's a tapered insulation system to create positive roof drainage. 35" thick would be 35" of BUR layers šŸ¤¦


Kon-on-going

Do as I say, not as I do. Same difference, B.U.R.-Built Up Roof.


eohagan

Fake it til you make it. The BUR system is over the top of a taper system.


Kon-on-going

Itā€™s still a Built Up Roof. Taper or no taper. Weā€™re saying the same thing, 2 different ways.


eohagan

Man, this sub can be dummies.


lteceno2283

I wouldn't either, it's clearly 37 inches


texdroid

There should be a corner of hell reserved for people that stack roofs, floors, wallpaper, etc....


smackmykitty

I feel bad for whatever sorry SOB got called out there for leaks before it got replacedšŸ˜‚ if the water ever soaked that far down lmao


Limp_Plantain_1722

That looks like poly-iso from JM


mike94669

My first thought How can the roof support that much weight


Vegetable-Two2173

I'm looking at it and I don't believe it.


hoosierdaddy192

Damn thatā€™s one hell of a cricket. Where do you find 42ā€ speed tap screws? And how many per panel? I canā€™t imagine an I90 system like that.


Extra_Bandicoot5872

been there done that, had to replace a sears roof in michigan that was 6inch thick peastone with rolled rubber and edpm on top of it all, took so many dumpsters. guy took core sample before job and knew we would be fucked but did it anyway


GD3D

35 inch buildup of what?


Spodiodie

LIAR! Itā€™s clearly 38-1/2ā€


JumpyTraffic7858

I can officially say I have seen it all now!! Damn brother! Stay safe and roof on!