Tag Archives: Energy code

2015 Washington State Residential Energy Code – Insulation mark

The 2015 Washington State Energy Code (WSEC)  requires R value identification on all batt insulation over 12” in width.  There are several code sections that reference R value identification.  The first is R303.1.  which requires all equipment, materials and systems … Continue reading

525 total views, 1 views today

Comments Off on 2015 Washington State Residential Energy Code – Insulation mark

Filed under Building, Energy Conservation

2015 Washington State Residential Energy Code – Slab insulation

  The 2015 Washington State Energy Code (R402.2.9) requires insulation at the perimeter of both heated and unheated slab on grade floors. The example shows an instance where the insulation has been installed horizontally, but the code also allows for … Continue reading

825 total views, 4 views today

Comments Off on 2015 Washington State Residential Energy Code – Slab insulation

Filed under Energy Conservation

Residential Code requirement for recessed lights

The Residential Building Code (N1102.4.4) requires the use gaskets or caulks when recessed lighting is installed between conditioned and unconditioned space.  The recessed lighting must be IC-rated and labeled indicating an air leakage rate of not more than 2.0 CFM … Continue reading

1,672 total views, no views today

Comments Off on Residential Code requirement for recessed lights

Filed under Energy Conservation

Residential Code requirement for insulation certificate

The building thermal envelope of each home may be comprised of various types of insulation materials and R values.  The energy section of the Residential Code (N1101.12.1) requires the placing of a certificate which details important information about the insulation. … Continue reading

5,362 total views, 6 views today

Comments Off on Residential Code requirement for insulation certificate

Filed under Energy Conservation

Residential Code requirement for energy certificate

The 2012 International Residential Code (IRC) now includes a whole new energy chapter.  This is a significant change from 2009 IRC which previously lacked an energy code section.  The 2012 IRC now contains a substantial amount of new code language … Continue reading

1,527 total views, 1 views today

Comments Off on Residential Code requirement for energy certificate

Filed under Energy Conservation