Material data

Type

HL CL BS EPG
You can choos betwee two tipes of imput.:

      Material: lambda, density and speific heat is needed;

      Cavity: The imput iof Thermal resestans is needed. A well-insulated cavity has a high R-value.

Thermal conductivity (Lambda)

HL CL BS EPG
Lambda is the heat conductivity coefficient or thermal conductivity of the material. The thermal conductivity coefficient λ expresses how much energy (in Watts) passes through a surface of 1 m² at a thickness of 1 m, per degree Kelvin temperature difference between both sides of the surface. The lower the λ value, the better the material insulates. Heavy materials do not insulate well. Porous materials insulate better. Moisture adversely affects the insulating capacity.

Density

HL CL BS
Density is the volumic mass. The moisture content and the composition of the material largely determine the volumic mass.

Specific heat

HL CL BS
Specific heat is the specific heat capacity or heat accumulating capacity of the material.

isso.gif

BS

ISSO Publicatie 32 (2011) bijlage C

Fysische eigenschappen van niet-transparante materialen

ISSO-digitaal

 

NPR 2068:2002, bijlage C

Tabelwaarden voor de warmtegeleidingscoëfficiënt voor metselwerk

BRISwarenhuis

 

NEN 1068:2012/C1:2014, Bijlage F

Warmtegeleidingscoëfficiënten van geselecteerde materialen, toegepast in ramen en kozijnen

BRISwarenhuis