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Squotipedia
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Windows & Doors
Windows & Doors
15 articles
Bifold Door Installation: Structural Openings, Lintels & Threshold Details
Bifold door installation: structural opening (lintel sizing), track types, threshold details, Approved Document M level thresholds
Composite Doors: PAS 24:2022 Security, Part L U-Values, Secured by Design and Part M Thresholds
Composite door installation: PAS 24:2022 security standard, TS007 3-star anti-snap cylinder, Part L U-value ≤1.4 W/m²K, Part M ≤15mm threshold, FENSA/Building Notice notification required
Door Security Hardware: PAS 24, BS 3621, Multipoint Locks and Security Cylinders
Draught Proofing Windows & Doors: Seals, Strips & Threshold Solutions
Draught proofing: compression seals, brush pile strips, threshold solutions — ventilation implications and Energy Saving Trust savings
Fire Door Regulations: FD30, FD60, Signage & Inspection Requirements
Fire door regulations: FD30/FD60 ratings, intumescent strips, gap tolerances (3mm max), self-closer requirements, mandatory signage
Garage Door Types: Sectional, Roller, Up-and-Over, Security Standards and Part Q Compliance
Glazing Regulations: Safety Glass, Critical Locations & Part N/Part K
Glazing safety: critical locations per Approved Document K, toughened vs laminated glass, manifestation on large panes
How to Hang an Internal Door: Measuring, Fitting Hinges & Latch Alignment
Internal door hanging: lining sizes, 3-hinge rule, hinge types, strike plate alignment, common binding causes
Lintel Replacement: Concrete, Steel & Cavity — When & How
Lintel replacement: concrete, steel and cavity types, temporary propping procedure, cavity tray and weep holes
Roof Lanterns and Flat Roof Glazing: Planning Rules, Part L Thermal Compliance and BS EN 1279 Standards
Roof lantern installation: GPDO ≤150mm projection for PD, Part L 25% maximum roof glazing area, BS EN 1279 unit specification, Category B laminated inner pane, structural trimmer around opening
Sash Window Renovation: Sash Cord Replacement, Weight Calculation, Draught Proofing and Spiral Balance Conversion
Sash cord 8mm laid-in vs nailed, weight calculation (glass area × 2.5 kg/m²), brush pile draught seal 5mm pile, spiral balance load range 2–14 kg per sash
uPVC Window Repair: Handle and Lock Mechanism Replacement, Gasket Re-fitting, Misted Unit Identification and Glass Replacement
Multipoint lock hook replacement (UPVC-specific tooling), gasket re-seating with silicone, misted unit condensation diagnosis (failed warm edge spacer), glass u-value check
Window & Door Security Locks: BS 3621, Multi-Point Locking & PAS 24 Standard
Security locks: BS 3621:2020 5-lever deadlock requirements, TS007 3-star anti-snap cylinders, PAS 24:2022 Secured by Design, multi-point locking, strike plate 75mm fixings
Window Condensation: Double Glazing Failure, Diagnosis & Replacement Criteria
Window condensation: IGU seal failure diagnosis (replace unit), room-side condensation (ventilation/humidity), external condensation (normal for well-insulated), Part L ≤1.6 W/m²K
Window Types: Casement, Sash, Tilt & Turn — Materials, U-Values & Building Regs
Window types: casement, sash, tilt-and-turn; U-value requirements (1.6 W/m²K replacement), FENSA/CERTASS certification