Construction and Renovation Issues (Builder's Thread)

• Mustard_pie on 17 Jul 19 @ 07:02 PM #

  @gabiking
  Ganun po ba sir? Sige yang epoxy primer na lang gagamitin ko. May recommended brand ka po ba bukod sa boysen? Yung contractor na kausap ko against sa sealing ng cracks eh gusto talaga payerohan na lang kaso gagastos ako ng malaki sa labor dahil 3 tao daw ang gagawa, kaya naghahanap ako ng alternative at kung kaya naman na DIY na lang. Salamat po.

• the_prefect on 17 Jul 19 @ 09:58 PM #

  Try mo browse Pioneer's Epoxy Concrete. Commonly found yan sa Ace, Home Depot, Wilcon shops to name a few. Self-levelling yan. Maganda sa rc slab for waterproof. Tapos, if you'll add sand as 3rd component, pwede mo i-sanding para maging granulitic ang dating. Ganyan ung ginawa namin sa old Dusit Deck pool dyan sa may edsa noon. Waterproofing na, may finish pa. Medyo may kamahalan nga lang.
  
  Anyways, best practice after applying waterproofing sa mga rc slabs, dapat may top layer material pa rin na ibabalot (eg, ceramic tiles, 2ndary paint application, etc..) para di mag-wear & tear in the long run. Lalo na kung may movement sa space na yan. Hth

• Mustard_pie on 17 Jul 19 @ 10:05 PM #

  @The_perfect
  Pwede po cementitious yung secondary ko after nung epoxy primer?

• the_prefect on 17 Jul 19 @ 10:22 PM #

  Pwede. Mabilis naman set nyang concrete epoxy. Cure will be 8 hours. Pero, parang redundant lang. Best is to apply a durable finishing material lalo na kung natatapakan. Hth

• Mustard_pie on 17 Jul 19 @ 10:28 PM #

  Yung acqua epoxy ng boysen pwede na po ba? Halos wala naman pong foot traffic doon. Mga pusa lang hehe. Sensya na po dami kong tanong. Salamat.

• the_prefect on 17 Jul 19 @ 10:28 PM #

  Seeping (water) normally occurs at joints. Lalo na ung connections ng parapet walls (CHB kadalasan) & rc slab. Or doon sa pipes na embedded sa rc slab. Doon ka focus ng waterproof material na gagamitin. Pero syempre kung may obvious crack (hairline or not) na wala sa joints, focus ka rin doon. Inspection is key.
  
  -- edited by the_prefect on Jul 17 2019, 10:30 PM

• the_prefect on 17 Jul 19 @ 10:30 PM #

  Pwede naman, hehe!

• Mustard_pie on 17 Jul 19 @ 10:52 PM #

  @the_prefect
  Yun nga sir, walang obvious cracks kaya hirap hanapin, gagawin ko na lang yung suggestion ni sir gabiking na buong flooring na lang applyan ko. Salamat po senyo ng dalawa. Update ko po kung anu mangyayari. Hope it works.

• euen_ilagan on 18 Jul 19 @ 06:13 AM #

  the_prefect Send Message View User Items on 17 Jul 19 @ 10:28 PM #
  
  Seeping (water) normally occurs at joints. Lalo na ung connections ng parapet walls (CHB kadalasan) & rc slab. Or doon sa pipes na embedded sa rc slab. Doon ka focus ng waterproof material na gagamitin. Pero syempre kung may obvious crack (hairline or not) na wala sa joints, focus ka rin doon. Inspection is key.

  
  
  i have so prepared our waterproofing in all applicable areas including parapet walls junction, increased my budget on it para sure talaga, one thing ang na miss out ko,....
  
  don't underestimate the angles/cleve of your tiles, malawak kasi ang deck ko, i should have made it 7 inches and 2 inches difference from center, at kelangan mo talaga na tao na marunong mag kwatro agwas na clevel if that is possible,
  
  kalaban ko ngayong maulan ay stagnant waters, so far may isang tumutulo palang naman...hu hu hu. atlest hindi tulad dun sa kapatid ko talaga naman ang water seepage.

• the_prefect on 18 Jul 19 @ 06:55 AM #

  Try mo sir silipin sa ilalim. Kung may ceiling cover, kailangan muna tanggalin. Sure yan, makikita kung saan nagmula o gumapang ung tubig. Tapos, i-plug. Hth

• euen_ilagan on 18 Jul 19 @ 12:53 PM #

  thanks sir, i forgot to mention, web deck kami at walang ceiling, i highly suspect naman po na need ko lang talaga alisin ang water ponding, medyo naniniwala ako na walang matibay at fullproof na water proofing vs stagnant waters.

• frequenzy on 18 Jul 19 @ 01:45 PM #

  yan talaga ang problema kapag concrete ang roof, kahit anung waterproofing after ng araw at ulan, may chance na mag leak since nag eexpand kapag nababasa. so usually kailangan ng maintenance para sa waterproofing.

• sethmartin on 18 Jul 19 @ 08:30 PM #

  open roofdeck...bitumenous waterproofing membrane na. pero dapat meron talaga drain.

• the_prefect on 18 Jul 19 @ 08:54 PM #

  ok din bitumen kaya lang di readily available sa atin. tsaka torch applied, dapat marunong ang gagawa. meron kaming ginagamit noon, Gemini ang brand. ewan ko lang kung may distributor pa dito.
  
  

  usually kailangan ng maintenance para sa waterproofing.

  
  yep. ganyan talaga kapag di-pahid at di-tapal.
  
  prevention is key, from structural integrity, proportioning of concrete, etc.. the best pa rin walang putol sa concrete pouring, with concrete additives if possible.
  
  but, in most cases, if not possible, diversion of leak is also plausible. treat the seepage as a funnel (imbudo ata ito sa tagalog). if you can channel the source point of the seepage to an another outlet, ma-lessen ang problema. then you can apply minimal waterproofing works.
  
  @Mustard_pie
  
  gaano kalaki ba ang area? kung di naman kinikilusan ang deck at maliit lang sya, parang overhang o canopy type, baka pwede na dyan di-pahid o cover ng GI plain sheet? Sa GI plain sheet nga lang, pipinturahan mo pa rin para di kalawangin.

• euen_ilagan on 19 Jul 19 @ 06:05 AM #

  but, in most cases, if not possible, diversion of leak is also plausible. treat the seepage as a funnel (imbudo ata ito sa tagalog). if you can channel the source point of the seepage to an another outlet, ma-lessen ang problema. then you can apply minimal waterproofing works.

  
  
  this is acceptable for me. marami namang torch applied waterproofing kay carousell(***) at butimen sa mga de-aircon na hardwares. with so much reading and consideration of costs, i opted to use; savanah additive sa buhos, & high concentration of davies mortaflex for the perpendiculars of parapet walls and floor.
  
  thanks mga sirs.
  
  -- edited by euen_ilagan on Jul 19 2019, 06:07 AM

• Mustard_pie on 19 Jul 19 @ 07:08 AM #

  @prefect
  15-20 sqm po. May nabasa ako regarding siliconate concrete sealer, anu masasabi nyo po?

• HighWind on 19 Jul 19 @ 07:51 AM #

  Mga boss ano kaya magandang brand ng tiles tsaka anong size? yung makapal sana para di mabasag agad.

• the_prefect on 19 Jul 19 @ 12:05 PM #

  @Mustard_pie
  ung sa silicon concrete sealer dapat industrial grade (kapit; ask about the psi grade-adhesion, eg, push ng water to crack) kung water-based. since water ang rinerepel natin.
  
  recommend ko sana SIKA, along marcos alvarez, las piñas ang planta:
  <click here for link>
  
  subok ko na rin yan sa water & damp proofing. hth
  
  @HighWind
  baka ampaw (or may void) ang paglagay ng mortar or paste sa floor to tiles kaya ganyan? sa ngayon kasi may mga tile adhesive na nabibili. dapat lang tama ang application ng tile adhesive. ang approach: mas manipis mas makapit. pahid sa tile & concrete screed na manipis lang. sa youtube may mga videos regarding that. glue tawag namin dyan sa dubai, hehe! pero kung palitan na talaga ung mga tiles & gusto mo ng makapal na thickness, go for the pre-cut granite (common size is 60cm x 60cm x 1.5cm thick). problema kasi sa mga tiles ngayon, 3D printed na. kadalasan madali ang wear & tear, maganda lang sa una & cheaper. hth

• sethmartin on 19 Jul 19 @ 12:50 PM #

  re bitumen membrane.....meron niyan sa Sika 3.5mm and 4.5mm thick....nung nag apply Sika recommended "installer"....same lang sa youtube videos....around 1k plus lang yung torch(mas malaki mas better).....parang "install and forget" na .....wala na maintenance as long as tama pagkagawa(dapat almost melted yung membrane(dikit side) dun sa bitumen primer(melted din) para mag "volt=in , haha" parang isa na after matuyo. yan naman talaga ginagamit sa mga swimming ppools sa mga high rise building and even sa malls.
  
  yun ginawa ko sa 2nd floor cr ko. so meron tiles naka patong on it. dapat lang tama pagka melt and joint dun sa corners(walls, wall to floor)....parang cut and paste lang ginawa......nag overlap and cut around 10 inches dun para sa floor and wall joint pero melted talaga yung dikit side.
  
  yan na ata so far pinaka best na waterproofing pwera firewall. just maybe must flexible siya than any paint type waterproofing...imagine na lang everytime lindol meron talaga possibility mag crack yung concrete and mas vulnerable yung mga paint based/type, sa opinion ko lang.
  
  -- edited by sethmartin on Jul 19 2019, 12:58 PM

• gabiking on 19 Jul 19 @ 01:10 PM #

  wala na maintenance as long as tama pagkagawa(dapat almost melted yung membrane(dikit side) dun sa bitumen primer(melted din) para mag "volt=in , haha" parang isa na after matuyo. yan naman talaga ginagamit sa mga swimming ppools sa mga high rise building and even sa malls.

  
  
  mabilis lang ba matuyo after ma torch or marami ka pang time na galawin yung tiles kung mali ang lapag mo sa sahig?

• Mustard_pie on 19 Jul 19 @ 03:35 PM #

  The_prefect
  Tamang tama malapit lang ako Marcos Alvarez.
  
  @sethmartin
  Any idea po magagastos sa membrane waterproofing kung 25sqm? Tight po kasi ngaun budget eh.

• HighWind on 19 Jul 19 @ 11:56 PM #

  @HighWind
  baka ampaw (or may void) ang paglagay ng mortar or paste sa floor to tiles kaya ganyan? sa ngayon kasi may mga tile adhesive na nabibili. dapat lang tama ang application ng tile adhesive. ang approach: mas manipis mas makapit. pahid sa tile & concrete screed na manipis lang. sa youtube may mga videos regarding that. glue tawag namin dyan sa dubai, hehe! pero kung palitan na talaga ung mga tiles & gusto mo ng makapal na thickness, go for the pre-cut granite (common size is 60cm x 60cm x 1.5cm thick). problema kasi sa mga tiles ngayon, 3D printed na. kadalasan madali ang wear & tear, maganda lang sa una & cheaper. hth

  
  
  thanks sa sagot sir. Bare finish kasi yung nakuha kong bahay, wala pang tiles. Sa karpintero ako mag papa install ng tiles. Kuha lang sana idea kung anong magandang brand or size.
  
  Nasa magkano kaya yun dito satin yung 60x60 1.5cm thick? di pa kasi ako nakakabisita sa mga tile shop.

• sethmartin on 20 Jul 19 @ 09:10 AM #

  @gabiking:
  
  bale di naman kaagad matuyo. aim mo talaga is ma melt yung dikit side ng membrane and yung bitumen(asphalt ) primer, then since mainit nga, gamit ka ng "paleta"(yung ginagamit pang finishing ng cement na parang diamond shape trowel, even hammer) para ipag dikit. pwede following day ka na mag tiles like the usual, adhesive/mortar, di po idikit yung tiles sa "upper facing" membrane. yung sika 3.5 mm parang 2k plus ata 1meter by 10meter roll.
  
  yung method, cut and paste, yung paste part is yung melted na bitumen membrane and primer. so dun sa mga joint parts, cut lang,,,yung gamit nila is yung "steel bar saw" yung consumable.
  
  -- edited by sethmartin on Jul 20 2019, 09:14 AM

• gabiking on 20 Jul 19 @ 09:27 AM #

  ^ah ok, akala ko yung bitumen imelt mo sa tiles para direct ang dikit. parang preparation layer pala yan bago ilagay ang mga tiles ano? paano kung jindi even ang bitumen layer? mahahabol pa sa adhesive paglagay ng tiles? kasi manipis lang dapat ang adhesive layer para makapit ang tiles di ba? baka wala nang allowance for adjustment.

• the_prefect on 20 Jul 19 @ 05:03 PM #

  ^dapat medyo maayos na ang level ng screed or topping para makatipid. effective coverage naman ng glue is 6mm to 1cm. anything beyond 1cm thick glue, di na economical since 25kgs /bag lang sya (in a 1cm thick coverage can cover atleast 2.0sq.m in a normal slurry mixture). now, for offsets (eg, door openings kung meron man tatamaan), katam ang kahinatnan ng door, hehe! anyways, kung ayaw ng di-suplete, may bitumen na di-pahid na solvent type. catalyst-resin+adhesive. pero dapat tuyong-tuyo ang screed. overlap atleast sa wall 10cm down to the joint of the slab / screed (on corners, bothways) para effective. tapos patong na lang alternative waterproofing material sa gitna ng slab kung walang manifestation mg hairline cracks doon. hth

• the_prefect on 20 Jul 19 @ 05:04 PM #

  glue, i mean, tile adhesive; slab/screed/topping = substrate, hehe!
  
  -- edited by the_prefect on Jul 20 2019, 05:05 PM

• sethmartin on 20 Jul 19 @ 09:26 PM #

  @gabiking:
  
  manipis lang naman yung bitumen membrane with the primer. ...so same pa rin procedure sa tiles as if wala yung bitumen...

• aljon2 on 22 Jul 19 @ 03:06 PM #

  Mga Sir, Pahingi naman po ng inputs
  
  for 2nd floor
  36 square meters
  semi finish lang
  slab
  
  mga magkano po ang budget??
  TIA

• gabiking on 22 Jul 19 @ 03:48 PM #

  ^20k/sq.m. na lang yan.

• SnakeEyes416140 on 22 Jul 19 @ 06:04 PM #

  aljon2 Send Message View User Items on 22 Jul 19 @ 03:06 PM #
  
  Mga Sir, Pahingi naman po ng inputs
  
  for 2nd floor
  36 square meters
  semi finish lang
  slab
  
  mga magkano po ang budget??
  TIA

  
  alamin nyo muna eto...
  
  1. naka-design ba ang foundation ng bahay nyo for a second floor?
  
  2. naka-abang ba ang rebars ng columns nyo for a second floor?