Fairfax County Attic Insulation Code

The codes regulating site development are generated from federal state and county laws regulations resolutions and policies as well as specific standards from the virginia department of transportation. Use r 13 when insulation is applied on the interior. 2015 r202 r301 5 blocking between the trusses when using a roof design incorporating a raised roof rafter or truss heel blocking is required.

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3 use r 8 when insulation is applied to the exterior.

Fairfax county attic insulation code.

For example cellulose attic insulation has an r value of r 3 7 per inch. For any thickness the total r value equals the rated r per inch multiplied by the thickness in inches. 4 use r 10 when applied continuously against the wall. R402 2 4 attic hatches.

Llc ridge remodeling and design llc comfenergy. Fairfax county virginia land development services building officials blog. Please illustrate or otherwise provide information to show compliance with applicable code requirements. Use r 13 when applied between studs or furring strips.

Attic habitable it appears that this design meets the definition of attic habitable. A 6 inch thick installation will therefore have a total r value of r 22 2 6 inches x 3. Iecc compliance guides reca mission and members reca mission and members. Responsible energy codes alliance responsible energy codes alliance responsible energy codes alliance.

Table r402 1 2 change cz4 ceiling insulation levels to r 38 and cz4 wood frame wall requirement to r 15 or r 13 r 1. Ridge remodeling and design llc fairfax insulation systems llc eko smart solutions. The r value of an insulation material is usually listed in terms of r per inch. Amendments additional state code information.

The code for land development is administered by fairfax county s department of land development services. Hire the best insulation contractors in fairfax va on homeadvisor. Reca mission and members reca mission and members reca mission and members. 5 insulation must extend from the slab edge to a length of 24 inches vertically and or horizontally.

Get quotes and book instantly. We have 509 homeowner reviews of top fairfax insulation contractors. Table r402 1 4 change cz4 ceiling insulation levels to u 0 030 and cz4 wood frame wall requirement to u 0 079. The term habitable attic is relatively new to the residential code.

A finished or unfinished attic that has all the makings of a living space is a habitable attic. Helpful links reca mission and members.