Window Shading - Interior - Renshade - by Wren Industries

• Radiant heat barrier to fit to the inside of window panes

• Removable (can roll up and put away on cooler days or in winter)
  
• Is perforated aluminium foil laminated onto both sides of heavy brown paper
• Keeps radiant heat out but lets light in
• Best attached to the inside of your window panes with the (included) Velcro dots
• Perfect in Australia for those west-facing windows that cop the full brunt of the afternoon sun
• Amazingly simple but incredibly effective

PHYSICAL PROPERTIES

• Outward facing foil surface reflects 97% inward radiation, with airspace
• Inward foil surface emits or re-radiates 3% of radiation, with airspace
• RENSHADE perforated surface area = 10%.  Aluminium surface area = 90%
• Inward radiant heat flow  = estimated 85% reduction
• Outward winter heat loss  = reduction unspecified, but considerable
• Effective typical summer period in southern Australia – October to March
• Overall product width is always 1.35 metres
• Available in 5m, 10m and 20m rolls
• Pricing for all is equivalent to $14 per metre of Renshade length38.72

BENEFITS

• Estimated 85% reduction in radiant heat flow – direct sunlight, reflected heat or ambient air temperature
• No glare, gentle filtered light. Less damage to fabrics/timber flooring. Assists computer screen reading
• See-through insulation - some external view maintained with total privacy during daytime
• Reverse optical effect at night time - privacy requires use of internal blind
• Airconditioning use will be greatly reduced
• Lower power costs for occupants and reduced state/national summer peak load electricity demand
  
• Reduces the need for expensive double-glazing
• RENSHADE sheets can be removed, rolled up, stored carefully and reused repeatedly
• Transparent roofing is commonly too hot to sit under – RENSHADE is the answer there too
•  Adequate winter light will penetrate RENSHADE to maintain plant growth and occupant happiness