OSB (Oriented strand board)

Five different qualities and standards.

  • OSB/0 – No added formaldehyde

    OSB- Oriented strand board
  • OSB/1 – General-purpose boards and boards for interior fitments (including furniture) for use in dry conditions
  • OSB/2 – Load-bearing boards for use in dry conditions
  • OSB/3 – Load-bearing boards for use in humid conditions
  • OSB/4 – Heavy-duty load-bearing boards for use in humid condition

Osmosis

Osmosis.

Osmosis is associated where fibreglass and polyester resins have been uses.

See: Osmosis in Problem and Remedies.

Osmosis showing on Hull of a yacht
Osmosis showing on Hull of a yacht

Osmosis-GRP Swimming Pool
Osmosis-GRP Swimming Pool

 

 


Overlapping Seam

A method of hanging wide width wallcoverings.


Particle- Board (Plywood -Chipboard)

Plywood and Chipwood.
Manufactured from particles of wood of various sizes.


PASMA Training Card

Prefabricated Access Suppliers' & Manufacturers' Association Ltd (PASMA)

web address; https://pasma.co.uk/

T: +44 (0) 345 230 4041


Personnel Protective Equipment (PPE)

Personnel Protective Equipment

Should be worn whenever work is being carried to protect the user from injury.

PPE is mandatory on all building and construction sites and responsibility is both contractors and operatives to ensure it is available and worn.

See: Health and safety


Polyvinyl Acetate (PVA)

Used as a binder in water based emulsion paints.

Also used as a  general glue for woodwork.


Principal Contractor

Principal/Nominated Contractor. Manages the construction of a project, liaising with the client and principal designer throughout the project, including during the pre-construction phase. See: https://www.citb.co.uk/documents/cdm%20regs/2015/cdm-2015-principal-contractors-printer-friendly.pdf


Principal Designer/ Archtitect

Principal Designers/Architect. Appointed by the client of projects with more than one contractor. Responsibilities include overall responsibility for planning, monitoring, coordination health and safety.

See: https://www.citb.co.uk/documents/cdm%20regs/2015/cdm-2015-principal-designers-printer-friendly.pdf


Quoin

Cast Quoin Stones are the stones which form the corners of a building.