





PHS Loft Stairs Insulation Kit
Airtight, Thermal Insulating, Vapour Control BarrierEliminate drafts, reduce heat lost through your attic stairs and improve energy efficiency with this 3-in-1 insulation kit with heavy duty insulation, vapour control and double radiant barrier to help retain heat in your home.
- Premium Quality
- Cost Effective
- Technical Support
- Installation Guides
Did you know that a home can loose 25% of its heat through the roof ?
Even when your loft is insulated, if your loft stairs isn’t, then you could be loosing heat upwards. Poor airtightness sealing around loft hatches can result in the ‘chimney effect’ where warm air is drawn up into an unheated loft space. The PHS Loft Stairs Insulation Kit combines high thermal insulation with airtightness technology to dramatically reduce heat loss through your loft stairs, sealing the area and making your home more energy efficient.
BS EN 13984:2013
Features & Benefits
- Double Radiant Fabric
- Airtight Vapour Control Layer
- Heavy Duty Insulation
- Flexible & Lightweight
- Durable Zippers
- Easy to install
- Range of Sizes
- Triple Layer Wall: 340 g/m2
- Thermal Conductivity (ASTM C518-21): 0.037 W/(m.K)
- Thermal Resistance: 0.161 (m².K/W)
Colour | Silver |
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Size | 1080mm x 510mm x 280mm, 1140mm x 550mm x 280mm, 1190mm x 590mm x 280mm, 1380mm x 650mm x 280mm |
Mass Per Unit Area | 340g/m² |
Water Vapour Resistance - Sd Value | >1000m |
Thermal Conductivity | 0.037 W (m.K) (ASTM C518-21) |
Thermal Resistance | 0.58W /m2K |
Tensile Strength Longitudinal | 358 N/50mm -0/+20% |
Tensile Strength Transverse | 359 N/50mm -0/+20% |
Elongation Longitudinal | 31% |
Elongation Transverse | 33% |
Tear Resistance Longitudinal | 199 N |
Tear Resistance Transverse | 192 N |
Water Penetration Resistance | No Penetration /2Kpa |
Resistance to Fire | Class E |
Material | Aluminium Bubble Foil Insulation |
Location | Internal |
System | Retrofit |
Installation
Installation Guide:
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Stapling: Install the attic opening insulation cover by stapling through the black band to the rough framed opening (usually 2×6’s) above the 1×4 stair frame.
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Orientation: Locating the zipper opening closer to the attic stair hinge will allow for easier attic access.
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Air Sealing: Apply a bead of foam sealant or caulk between the Cover’s walls and the wood framing from the attic side to ensure a good air tight seal.
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Larger Voids: Use our single component foam sealant to insulate attic stairs by sealing larger gaps and voids between Hatchway™ attic access door insulation and framing members.
SKU
SKU: | Size: | Sell Qty: | Barcode: |
AR9053 | 1190 x 590 x 280 mm | 1 | 05391536370664 |
AR9053A | 1140 x 550 x 280 mm | 1 | 05391536370718 |
AR9053B | 1080 x 510 x 280 mm | 1 | 05391536370725 |
AR9053C | 1380 x 650 x 280 mm | 1 | 05391536370770 |