All Kind of UPVC Profiles  
 
 
  Technical Features  
 
 
 
 
 
Comparison with Conventional Material
 
Characteristics
Wood
Aluminum
Steel
PVC-U
Cost Expensive Expensive Cheap Slightly more than Aluminum
Safety Good Fair Good Excellent
Installation Fair Fair Poor Excellent
Corrosion Resistant Good Fair Poor Excellent
Durability Good Fair Poor Excellent
Aesthetics Good Good Fair Excellent
Thermal Conductivity Nil High High Nil
Chemical Resistance Rots Corrodes Corrodes No Effect
Surface Finish Good Good Poor Excellent
 
 
FEATURES OF “SKYFRAMES” PVC-U WINDOWS & DOORS COMPARED TO ALUMINUM
   
PVC-U WINDOWS
ALUMINUM WINDOWS
WATER PROOF: Prevents rain/ water from entering the window ; can also be used in certain special environment conditions like proximity to swimming pool/beaches
NOT WATER PROOF
   
WEATHER PROOF & NON-CORROSIVE: beats all weather conditions- from salty air of coastal areas to snow bite and temperature fluctuations of North India
NOT WEATHER PROOF
   
ULTRA VIOLET RADIATIONS RESISTANT: the compound being Polyurethane based, these windows do not fade & crack when exposed to sunlight
NOT RESISTANT TO UV RADIATIONS
   
ANTI-FUNGAL & ANTI TERMITE
IT IS ALSO ANTI-FUNGAL & ANTI TERMITE
   
STRENGTH & DURABILITY: It has high impact strength and is long lasting
STRENGTH & DURABILITY LESS THAN PVC-U WINDOWS & DOORS
   
MAINTENANCE FREE: Do not require periodic repainting or maintenance; they do not rot, warp or corrode
IT REQUIRES MAINTENANCE & REPAINTING
   
THERMAL INSULATION: These windows are near airtight & have the option of two layered vacuumed glass panes (multi chambered design) to achieve more from air conditioning
NOT THERMALLY INSULATED
   
ACOUSTIC INSULATOR: Protection against noise pollution & higher levels of privacy are insured; Sound insulation is increasingly becoming a compliance issue in many sensitive areas including hospitals; The fusion welded joints do not allow gaps to develop over a period of time, promising a dust & noise free environment
HAVE NO ACOUSTIC INSULATION
   
BURGLARY PROOF: these windows offer brave resistance against burglary; an expert installation of special fittings & glazing reduces the threat considerably
NOT BURGLARY PROOF
   
FIRE RESISTANT: PVC-U windows are fire resistant and do not support or enhance accidental fires
NOT FIRE RESISTANT
   
ECO FRIENDLY: These windows are energy efficiently compared to other materials; As a stronger option to wood, they contribute in drive against deforestation
NOT ECO FRIENDLY
   
 
 
PVC-U Profiles Test Methods
Physical Properties Physical Properties Test Methods Value
Softening Point Softening Point BS 2782 part 1Method 1208' 1983 72oC
Apparent Modules Apparent Modules BS 2782 part 3Rate 5mm/mini 2250mpa
Impact Strength Impact Strength BS 2782 part 3Method 359 (1984) 6.0 KJ/m2 to 10 kJ/m2
Density Density DIN 5349 1.40 g/c cm
Tensile Strength Tensile Strength DIN 534551 480 kp/q cm
Limiting Bending Limiting Bending DIN 53452 770 kp/q cm
Thermal Conductivity At 20oC Thermal Conductivity At 20oC DIN 52613 0.155 k. Cal/m.h. des.
 
 
 
S.No.
PROPERTIES PVC-U MATERIAL WOOD
1. FLASH IGNITION TEMPERATURE 400 Deg.C 210 Deg.C
2. SELF IGNITION TEMPERATURE 450 Deg.C 400 Deg.C
3. OXYGEN INDEX 50% 21%
4. IGNITION TIME AT 30 KW/SQ.MTR 112 SEC. 31 SEC.
5. NEEDLE FLAME TEST Non-Ignitable Ignitable in lesss than 20 sec.
6. SMOKE YIELD 384 gm. 750 gm.
 
 
 
THERMAL PROPERTIES OF PVC-U
   
  U-Value (w/sq.m.K)
5 MM GLASS 7.25
Aluminum 5.2 - 5.8
Aluminum Thermally broken 2.9
PVC-U PROFILES 2.4
Timber 1.5 - 1.6
 
 
 
 
     
     
     
 
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