It is very important that a gap is left between roof timbers and the top of the masonry leaf. The purpose of this gap is to withstand any differential movement that may occur as well as natural shrinkage of the timbers. A support should be provided to support the underlay behind the fascia so that water cannot pool in this area.
Select the link above to copy to your clipboard.
Construction Guides Terms of Service
Building Regulations and Other Guidance
Show Filters
Hide Filters
Part A Structure
Part B Fire Safety Volume 1 all other types of buildings excluding dwelling houses.
Part B Fire Safety Volume 2 dwelling houses
Part C Site Preparation and Resistance to Moisture
Part D Materials and Workmanship
Part E Sound
Part F Ventilation
Part G Hygiene
Part H Drainage
Part J Heat Producing Appliances
Introduction & Requirements
Section 0: General Guidance
Section 1: Provisions which apply to all fuel types
Section 2: Additional provisions for soild fuel burning appliances (including solid biofuel) with a rated output up 50kW
Section 3: Additional provisions for fixed gas burning appliances with a rated input up to 70kW and for gas burning cooking appliances
Section 4: Additional provisions for oil burning appliances with a rated output up to 45kW
Section 5: Fuel storage
Appendix A - European chimney designations
Appendix B - Assessing Air Permeability of older dwellings in relation to permanent ventilation requirements
Standards and Publications
Part K Stairways, Ladders, Ramps and Guards
Part M Access and Use Dwellings
Part L Energy Conservation
Part L 2022
Part L1 Dwellings 2017
Appendices
Heating and Domestic Hot Water Systems for dwellings - Part L
Images and Tables
Timber Frame Construction
Stud framework
Noggins
Sheathing
Thermal insulation
Wall Ties
Ventilated cavities
DPCs
Vapour control layer
Breather membranes
Cavity barriers
Firestops
Eaves details
Spandrel panels
Differential movement
Masonry chimneys in timber-frame walls
Opes
Cavity walls
Party walls
Fire resistance
Sound insulation
Fire-stopping and protection of steel members
Floors
Locations for notching and drilling
Fire safety
Typical Fixing Details
Overall requirements
Building Energy Ratings
Energy Efficiency & Renewable Energy Systems
Air Leakage
Introduction
Transitional arrangements
Air Leakage
Building Regulations
Acceptable construction details
Air barrier materials and accessories
Building Regulations
Testing for leakage
Minimising leakage
Leakage detection methods
Acceptable Construction Details
Limiting Thermal Bridging and Air Infiltration
General Theory of Insulation Continuity and Air Tightness
Cavity Wall Insulation
External Wall Insualtion
Internal Wall Insulation
Timber Frame
Steel Frame
Cavity Block Insulation
General Details
Irish Water Requirements for Dwellings
Radon
Typical Inspection Reports
No 1. Inspection Foundations Radon Sump Barrier and Blinding
No 2. Inspection Foundations Radon Sump Barrier and Blinding
No 3. Inspection Radon Barrier Blinding and Insulation
No 4. Inspection of Radon Barrier and DPC
No 5. Inspection Radon Barrier Rising Walls Block and Brickwork
No 6. Inspection Rising Walls Block and Brickwork
No 7. Inspection of Chasing Block work, Brickwork and feature stone band
No 8. Inspection of Radon Barrier and Damp proof Course.
No 9. Inspection of Brick and Block work from 1st to 2nd floor
No 10. Inspection of Joisting , bridging, Block work, Brickwork and Lintel supports
No 11. Inspection of Block work, Brickwork and feature stone band
No 12. Inspection of Block work, gable and party walls.
No 13. Inspection Brickwork and Firestopping
No 14 Inspection of Structural Beams
No 15. Inspection of Stud wall and floor joist construction
No 16. Inspection of Stud wall construction.
No 17. Inspection of Roof Construction.
No 18. Inspection of Roof Construction and breathable membrane
No 19. Inspection of chasing in block party walls for electrical first fix
No 20 Inspection of Electrical first fix
No 21 Inspection Steel Beams and Intumescent paint
No 22 Inspection of windows and doors being installed
No 23 Inspection of Windows on Front and Rear Elevations
No 24 Inspection of Windows on Front Elevations, DPM and Control Joint
No 25 Inspection of Windows on Rainwater System
No 26 Inspection of Windows on Velux Rooflights
No 27. Inspection of timber stairs installation
No 28. Inspection of timber stairs and handrail during construction stages
No 29 Inspection of timber stairs handrail installation
No 30 Inspection of Timber stairs handrail.
No 31. Inspection of Roof Access Hatch
No 32. Inspection of Rising walls, Damp proof Course and Blockwork.
No 33 Inspection of Blockwork and elements
