Doubt of the house frame extension (example kitchen extend to backyard)...

usually we know that the house frame (top and side pillar) must be complete before wall up with bricks...

but recently found out that many house extension done in other method, the contractor build the side pillar only (without top pillar) and wall up with bricks, later will do the top pillar after wall up with bricks...

example like picture below:


the proper method to build house frame as right bottom part of the picture, used wooden stick to hold the wet cement and dry up...

but the other method that current contractors working with start with side pillar > wall up > top pillar, same as the middle part of the picture... is the method can be accept? will this method effect the house structure in long term? because i thinking that the brick wall was holding the weight of the top pillar, also the roofing material such as roof tiles, the total weight may pressuring the wall and may lead the cracks after some times...

if used the proper method, complete the frame 1st before wall up, at least the total weight only pressuring onto strong pillar instead of weak wall...

This post has been edited by gkl83: Jun 8 2010, 08:25 PM

here the picture link
http://i643.photobucket.com/albums/uu156/K...on/LGIM0347.jpg

yup....
side pillar =vertical = column
top pillar = horizontal = beam or row

bcos as i see around all the building construction... they will complete the building's frame 1st till the roof level and only allowed to wall up with brick...

so doubt on most of house extension used "bottom-top" method instead, can the structural last long?

if the "bottom-top" was efficient especially the speeding up construction's time, by sense most of construction should use this method instead bcos at least they no need to stack up the temporarily frame to hold the wet beam for drying purpose, hence also can cut cost and reduce the wastes for stack up...

u means the bottom-top method are acceptable if the contractor giving good workmanship, more raw material provided?

Here some of the pictures i taken from my neighbour which used "bottom-top" method... any comments?

seem u misunderstood... my concern wasnt the lintol beam for door and window...

the main concern is whether the steps of extension whether correct or not... here the building construction we can see... most of building completed with frame with before wall up with bricks...


and the picture above i showing, seem the structural frame no complete yet and they starting to wall up... the contractor used the brick wall to supporting the top beam... imagine the top beam carrying the weight of roof tiles, house furniture, etc which may giving more pressure the brick wall in the future...