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The 6m x 4m Harlow Insulated Garden Room is a contemporary garden building designed for year-round comfort. Featuring double-skinned, insulated walls, EcoQuilt insulation, and double-glazed UPVC windows and doors, it’s ideal for a home office, gym, or guest room. A striking winged roof design and premium EPDM rubber covering make this a stylish and practical modern garden extension—fully installed and customisable to your needs.
Key Features
Year-Round Use – Fully insulated walls, roof & floor with EcoQuilt and AirTec
100mm Double-Skinned Walls – Removable internal panels for hidden electrics
Double Glazed UPVC Windows & Doors – Available in Anthracite, Oak, or White
Contemporary Winged Design – Creates a sheltered porch and bold aesthetic
EPDM Rubber Roof – 50-year life expectancy, UV & weather-resistant
Fully Installed – Expert construction included in the price
Sustainable Timber – Ethically sourced and manufactured in the UK
10-Year Anti-Rot Guarantee – For long-term durability and peace of mind
Specifications
Feature
Details
Model Name
Harlow 6m x 4m
Building Type
Insulated Garden Room
Range
Sherwood
External Size
Approx. 6m (W) x 4m (D)
Wall Construction
100mm Double-Skinned Shiplap+ Tongue & Groove
Wall Insulation
EcoQuilt Multi-Foil Insulation
Roof Construction
OSB & 12mm Tongue & Groove
Roof Insulation
EcoQuilt Multi-Foil Insulation
Roof Covering
EPDM Rubber Membrane (50-Year Lifespan)
Floor Construction
16mm Tongue & Groove with AirTec Insulation
Door Style
Double UPVC French Doors
Window Style
Double Glazed UPVC (Opening and Lockable)
UPVC Colour Options
Anthracite, Oak, White
Treatment Required
Yes – Annual wood treatment for 10-year guarantee validity
Installation
Fully Fitted – Installation included
Base Requirement
Firm and Level Surface or Elite Timber Base (Upgrade)
