02:56PM | 08/03/05
Member Since: 07/15/04
14 lifetime posts
As part of a proposed garage-to-living space conversion I plan to create a built-up floor over the existing concrete slab to allow for insulation and to give a good substrate for flooring. This will be done with pressure-treated 2x's ripped to the slope of the slab. However, it is desirable to hold the floor elevation as low to the slab as possible as ceiling height is a bit of an issue. I know that in Washington State the prescriptive requirement for floor insulation in a crawlspace is R-30. As low as I would like to keep these "sleeper" joists there won't be a deep enough bay for batt insulation. Can I treat this like a slab-on-grade floor since there is no crawlspace and only insulate the exterior walls and lay a 2ft wide strip of R-10 rigid insulation on the slab between sleepers at the perimeter of the room(our energy code requires a similar detail for heated basements with slab-on-grade)? And since at what was the garage door side there will be more space between the slab and subfloor (due to the gradient of the floor)should I try to at least minimally ventilate? I'm not sure that there will be any significant crossover between joist bays but it is just a question.

Thanks in advance


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

The Infinite Artisan Fire Bowl from Eldorado Outdoor is made from glass-fiber reinforced concrete, and offered in Oak Barr... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon