Gable End Collapses.

 
Thread Tools Search this Thread Display Modes
Old 01-29-2013, 03:29 PM   #41
Pro
 
dom-mas's Avatar
 
Trade: masonry
Join Date: Nov 2011
Location: Ontario Canada
Posts: 8,133
Rewards Points: 626

Re: Gable End Collapses.


AAC being the light weight block?
__________________
New & restoration masonry construction
www.dominionmasonry.ca
dom-mas is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 01-29-2013, 03:32 PM   #42
Pro
 
stuart45's Avatar
 
Trade: Brickwork
Join Date: Oct 2009
Location: Somerset, England
Posts: 974
Rewards Points: 1,040

Re: Gable End Collapses.


Quote:
Originally Posted by dom-mas View Post
AAC being the light weight block?
It is.
stuart45 is offline  
Old 01-29-2013, 03:33 PM   #43
Pro
 
BCConstruction's Avatar
 
Trade: Construction
Join Date: Jun 2009
Location: Roanoke, VA
Posts: 16,392
Rewards Points: 2,394

Re: Gable End Collapses.


Quote:
Originally Posted by dom-mas View Post
AAC being the light weight block?
Yep. The stuff floats in water which is weird.
__________________
www.bcconstructionllc.com
BCConstruction is offline  
   
 
Old 01-29-2013, 04:29 PM   #44
Pro
 
concretemasonry's Avatar
 
Trade: Masonry consultant
Join Date: Nov 2006
Location: MSP, Minnesota
Posts: 3,371
Rewards Points: 2,920

Re: Gable End Collapses.


Depending on the grade, type of AAC, the strength is also different in different directions depending on the orientation when the "loaf of bread" is oriented before slicing. The processes vary wildly and they can produce different densities depending on the market. That is why the use standards are different everywhere and most are non bearing except for 1 and 2 story structures.

Most use a non-conventional mortar (for the U.S.) and much thinner mortar joint.

They can float or the cheaper types will sink, but the product is fascinating in its variable properties.
__________________
Dick

Engineer, designer and consultant recently active domestically and internationally on construction and design in about 40 countries.
concretemasonry is online now  
Old 01-29-2013, 04:48 PM   #45
Pro
 
dom-mas's Avatar
 
Trade: masonry
Join Date: Nov 2011
Location: Ontario Canada
Posts: 8,133
Rewards Points: 626

Re: Gable End Collapses.


I've never seen or heard mention of them except on this site
__________________
New & restoration masonry construction
www.dominionmasonry.ca
dom-mas is offline  
Old 01-29-2013, 05:59 PM   #46
Pro
 
concretemasonry's Avatar
 
Trade: Masonry consultant
Join Date: Nov 2006
Location: MSP, Minnesota
Posts: 3,371
Rewards Points: 2,920

Re: Gable End Collapses.


AAC is generally a European product that has been used for decades. Europeans (like most of the world) look on wood as inferior/temporary construction, so AAC, hollow clay tile, brick and concrete block are preferred. Many of the plants producing AAC are located adjacent to large power plants and can use the waste heat and fly ash along with other local materials (ground silica sand, cement, lime, aluminum powder depending on the process) and produce a very stable lightweight building material on a 24/7 basis, but is essentially a solid block with strength and insulation properties that can be controlled. It can be cut with a hand saw, but it has no cores or way to pick it up or handle it easily.

A few plants, based on European processes, were built, but it was like swimming upstream because of the American preference for lightweight stick construction since we had to find a use for the trees when they were cut down to clear land in the old days.

The AAC plants are very sophisticated and almost identical through out Europe and some of Russia. When I was in Russia at a plant, someone asked me if I wanted to see the grinding ball mill, I said "I know where it is because I was in identical plants in Poland, Czech Republic and Germany". The Finnish/Swedish plants are somewhat different.

It is just a different construction material that has been used successfully in many areas.
__________________
Dick

Engineer, designer and consultant recently active domestically and internationally on construction and design in about 40 countries.
concretemasonry is online now  
Old 01-29-2013, 07:16 PM   #47
Pro
 
cleveman's Avatar
 
Trade: custom home building
Join Date: Dec 2007
Location: Central Iowa
Posts: 2,836
Rewards Points: 2,624

Re: Gable End Collapses.


Is the YTONG or something like that one brand in Germany?
cleveman is offline  
Old 01-29-2013, 07:33 PM   #48
Pro
 
fjn's Avatar
 
Trade: mason
Join Date: Aug 2011
Posts: 4,569
Rewards Points: 9,220

Re: Gable End Collapses.


Aac block producers:http://www.toolbase.org/TechInventor...ntDetailID=690
fjn is offline  
Old 01-29-2013, 07:55 PM   #49
Pro
 
txgencon's Avatar
 
Trade: General & Electrical Contracting
Join Date: Jan 2011
Location: Dallas, Texas
Posts: 2,479
Rewards Points: 430

Re: Gable End Collapses.


Inner sting.
__________________
I used to think a lot of the people I encountered were stupid - then I realized how much I was overestimating them.
txgencon is offline  
Old 01-29-2013, 09:11 PM   #50
Pro
 
concretemasonry's Avatar
 
Trade: Masonry consultant
Join Date: Nov 2006
Location: MSP, Minnesota
Posts: 3,371
Rewards Points: 2,920

Re: Gable End Collapses.


cleveman -

Ytong is a German company that has been involved in some plants in the U.S. They are heavy on their name recognition, support and good technical support. They even sell saws and the thinset type mortar used and everything is delivered in yellow poly with a big YTONG printed on the packaging. In other words, they sell a building system and not just a product.

Hebel(sp?) is also another German company. I think both companies produce wall panels. I saw some (from a Hebel plant?) in FLA that were used as interior partitions in homes. They were set after the trusses were set and the house was dried in. That shows the light weight of the wall panels that can be finished with joint tape and a skim coat.

Most of the European systems are not branded, but the products are virtually the same since the products can be made/wire cut in different shapes and sizes.
__________________
Dick

Engineer, designer and consultant recently active domestically and internationally on construction and design in about 40 countries.
concretemasonry is online now  
Old 01-30-2013, 04:03 PM   #51
Pro
 
fjn's Avatar
 
Trade: mason
Join Date: Aug 2011
Posts: 4,569
Rewards Points: 9,220

Re: Gable End Collapses.


Mason builds own home with aac blocks.





http://articles.chicagotribune.com/2...s-minimum-wood
fjn is offline  
Old 01-30-2013, 05:06 PM   #52
Pro
 
concretemasonry's Avatar
 
Trade: Masonry consultant
Join Date: Nov 2006
Location: MSP, Minnesota
Posts: 3,371
Rewards Points: 2,920

Re: Gable End Collapses.


The problem frequently involved in all masonry construction (brick, block, AAC, etc.) is how the wall works after it is built. That on top of the proverbial question - "Does mortar hold masonry units together or keep them apart?"
__________________
Dick

Engineer, designer and consultant recently active domestically and internationally on construction and design in about 40 countries.
concretemasonry is online now  
Old 01-30-2013, 06:16 PM   #53
Pro
 
lukachuki's Avatar
 
Trade: Customer Education & Development
Join Date: Feb 2005
Location: Aiken SC
Posts: 1,600
Rewards Points: 1,002

Re: Gable End Collapses.


Quote:
Originally Posted by fjn View Post
Mason builds own home with aac blocks.





http://articles.chicagotribune.com/2...s-minimum-wood
Interesting link but no pictures.
__________________
I'm a little mean, but I make up for it by bein' real healthy. Earnest T. Bass
lukachuki is offline  
Old 01-30-2013, 06:27 PM   #54
Pro
 
BCConstruction's Avatar
 
Trade: Construction
Join Date: Jun 2009
Location: Roanoke, VA
Posts: 16,392
Rewards Points: 2,394

Re: Gable End Collapses.


Dick you may know this. I was on a job in england where they had a machine that pumped a resin type stuff between the bricks as they laid them. bascily replaced the mortar and was meant to be much stronger and faster. never have seen or heard about it since then. it was on a government project for a school.
__________________
www.bcconstructionllc.com
BCConstruction is offline  
Old 01-30-2013, 07:23 PM   #55
Pro
 
fjn's Avatar
 
Trade: mason
Join Date: Aug 2011
Posts: 4,569
Rewards Points: 9,220

Re: Gable End Collapses.


Quote:
Originally Posted by lukachuki View Post
Interesting link but no pictures.





Here you go!



http://news.google.com/newspapers?ni...g=6360,8781516
fjn is offline  
Old 01-30-2013, 07:29 PM   #56
Pro
 
lukachuki's Avatar
 
Trade: Customer Education & Development
Join Date: Feb 2005
Location: Aiken SC
Posts: 1,600
Rewards Points: 1,002

Re: Gable End Collapses.


Quote:
Originally Posted by fjn View Post
Those aren't color!



Just bustin yo chops.

Thanks Man!
__________________
I'm a little mean, but I make up for it by bein' real healthy. Earnest T. Bass
lukachuki is offline  
Old 01-30-2013, 07:54 PM   #57
Pro
 
fjn's Avatar
 
Trade: mason
Join Date: Aug 2011
Posts: 4,569
Rewards Points: 9,220

Re: Gable End Collapses.


Quote:
Originally Posted by lukachuki View Post
Those aren't color!



Just bustin yo chops.

Thanks Man!


Here,use these,

https://www.google.com/search?q=cray...w=1366&bih=613
fjn is offline  
The Following User Says Thank You to fjn For This Useful Post:
lukachuki (01-30-2013)
Old 01-31-2013, 10:59 AM   #58
Registered User
 
pappaking's Avatar
 
Trade: Engineer
Join Date: Jan 2013
Posts: 4
Rewards Points: 10

Re: Gable End Collapses.


Hi All.

I saw this on the news and found your posts on Google.
The canopy carport is made by canopiesuk Ltd.
There is nothing new about these collapses.
If you search Google for COLLAPSED CANOPIES or
COLLAPSED CARPORTS you will find safety warnings sent to the schools
and many images of theses collapsing.
Here are some of the modes of failure.
The GRP cantilever beams fail my snapping.
The steel brackets bends and or snaps.
The wall fixings fail in tension.
The outer and sometimes the inner wall collapse due to the overturning effect.
100 of these canopies in the uk have failed from wind and or snow loading.

Last edited by pappaking; 01-31-2013 at 11:10 AM. Reason: Grammar
pappaking is offline  
Old 01-31-2013, 11:07 AM   #59
Registered User
 
pappaking's Avatar
 
Trade: Engineer
Join Date: Jan 2013
Posts: 4
Rewards Points: 10

Re: Gable End Collapses.


Hi All.
Hi all
I saw this on the news and found you posts on Google.
The canopy carport is made by canopiesuk Ltd.
There is nothing new about these collapses.
If you search Google for COLLAPSED CANOPIES or
COLLAPSED CARPORTS you will find safety warnings sent the schools
and many images of theses collapsing.
Here are some of the modes of failure.
The GRP cantilever beams fail my snapping.
The steel brackets bends and or snaps.
The wall fixings fail in tension.
The outer and sometimes the inner wall collapse due to the overturning effect.
100 of these canopies in the uk have failed from wind and or snow loading.
pappaking is offline  
Old 01-31-2013, 11:37 AM   #60
Pro
 
BCConstruction's Avatar
 
Trade: Construction
Join Date: Jun 2009
Location: Roanoke, VA
Posts: 16,392
Rewards Points: 2,394

Re: Gable End Collapses.


why are they allowing them to be used still?

Advertisement

__________________
www.bcconstructionllc.com
BCConstruction is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
seal gable vents after ridge vent installed? tacoma5050 Roofing 41 06-07-2012 07:32 PM
Over Framing a cross gable roof to a open great room (cathedral) rusticlife Framing 20 09-23-2011 11:46 AM
Gable on the Ground jimAKAblue Framing 19 06-20-2011 07:56 AM
ridge vent / gable vent help enforcer Roofing 53 03-05-2011 12:56 PM
Need new ideas for stucco design on Gable ends?? kdub1777 General Discussion 0 07-13-2010 07:50 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?