LATEST ARTICLE · Granny annexes
Garden Room or Granny Annexe: Which Do You Need?
Garden room or granny annexe? Compare layouts, services, specifications and approval questions to choose the right building for your needs.
Read articleTHE TRJ JOURNAL · IDEAS & PRACTICAL INSIGHTS
SIP Construction Blog
Explore garden rooms, granny annexes, planning and the construction details behind a well-designed building.
40 articles · Page 1 of 5
Planning & regulations
Granny Annexe Planning Permission UK
Read our granny annexe planning permission UK guide. Explore when consent is needed, permitted development considerations and common reasons for refusal.
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Planning & regulations
Granny Annexe in Flood Zone 2
Can you build a granny annexe in Flood Zone 2? Learn how flood risk, raised floor levels and screw pile foundations can affect planning and design.
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SIP construction
Thermal Comfort in SIP Buildings
See why thermal comfort in SIP buildings is about more than energy bills, including surface warmth, condensation control and comfort.
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SIP construction
Structural Strength of SIP Panels
Explore SIP panel strength, rigidity and stability. Learn how composite action, connections and structural design support a durable garden building.
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SIP construction
SIP Airtightness, Comfort & Ventilation
Learn how airtightness in SIP construction affects draughts, heat loss and comfort, and why planned ventilation matters in garden rooms and granny annexes.
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SIP construction
EPS vs PUR/PIR SIP Panels
Compare EPS vs PUR/PIR SIP panels for insulation and building performance. Explore the role of the panel core, system design and installation details.
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SIP construction
SIP Panel Thickness & Wall Sizes Explained
Understand SIP panel thickness and wall sizes, insulation, thermal performance and detailing for garden rooms, granny annexes and house extensions.
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SIP construction
Understanding SIPs: Structure & Insulation
Understanding SIPs beyond the marketing: explore structure, insulation, composite action and long-term performance in garden rooms and granny annexes.
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