P Building Fabric Sundries

Contents

P1 SUNDRY PROOFING/INSULATION
P10 Sundry Insulation/Proofing Work/Fire Stops
P11 Foamed/Fibre/Bead Cavity Wall Insulation
P2 SUNDRY FINISHES/FITTINGS
P20 Unframed Isolated Trims/Skirtings/Sundry Items
P22 Sealant Joints
P23 Movement Joints

P10 Sundry Insulation/Proofing Work/Fire Stops

CONSIDER:
• Cement Substitution See E10
Aggregate Substitution See E10
Car park marking reinstated to maximise efficiency of car park layout

AVOID:
• Non-hygroscopic (rock and glass mineral wool) insulation in timber framed construction, they can hold moisture against timber which consequently needs preservative treatment.

HAZARDOUS WASTE :
• Asbestos cement and products containing them.

P11 Foamed/Fibre/Bead Cavity Wall Insulation

CONSIDER:
• U Values Above Building Regulations Approved Document: L1 & L2.
• Optimum thicknesses: 300 - 600 mm.
• Blowing or spraying cavities with cellulose fibre insulation.
• Newspaper: Cellulose fibre thermal insulation in walls and roof.
• Bag up offcuts of insulation in original packaging (for identification purposes) return to manufacturer.
• Off-site segregation and bulking operations can collect sufficient to return to manufacturer.

AVOID:
• Urea formaldehyde foam insulation.
• Non-hygroscopic (rock and glass mineral wool) insulation in timber framed construction, they can hold moisture against timber which consequently needs preservative treatment.

P20 Unframed Isolated Trims/Skirtings/Sundry Items

AVOID:
• PVC See Z50
• Virgin Plastics See Z50
• Flush skirtings impairing fire or acoustic performance of stud partitions, or demanding additional layers of plasterboard and demanding additional offcuts of plasterboard.

P22 Sealant Joints

CONSIDER:
• Sealants are often used to fix air leaky buildings when carrying out airtightness testing.

DELETERIOUS SUBSTANCES:
• The European Waste Catalogue identifies materials contaminated with sealants as deleterious substances

P23 Movement Joints

CONSIDER:
• Water gutters below movement joints, especially below wet rooms, to minimise the risk of spoiling materials on ceilings below.
• Reducing floor thicknesses adjacent to acoustic isolation joints to reduce the areas of floor edges that can ‘talk’ to each other