Glass Heat Transfer. Cover with a non stick sheet. Glazing installed at an angle changes the convection in the interspace and deteriorates the ug value.
Heat exchange between glass and mould by contact conduction across a very small gap and that by thermal radiation are considered separately. The glass can be in the sun direct and diffuse radiation or in the shade diffuse or scatter radiation. This can worsen the u g value by up to 06 wm²k for double insulating glass.
Learn about how heat transfer occurs.
Heat transfer through glass k x a x t 1 t 2 d where t 1 inside temperature t 2 outside temperature a window surface area d window thickness k glass thermal conductivity example. The tinted heat absorbing glass absorbs 30 to 45 of the solar heat incident on the glass surface depending on its tint and thickness. Additionally convection occurs at the surface layer and contact heat transfer occurs in the bottom surface layer. Learn about how heat transfer occurs.