Can the plastic webs be detected by using stud finders?

A stud find­er typ­i­cal­ly uses the den­si­ty of mate­ri­als to locate studs. The polypropy­lene (plas­tic) web mate­r­i­al will show up on high qual­i­ty den­si­ty stud find­ers. Note, the webs in Fox Blocks are spaced at 8″ (200 mm) on cen­ter and will be con­tin­u­ous ver­ti­cal­ly on each side of the wall.

Are there different types of Expanded Polystyrene (EPS)?
EPS is list­ed basi­cal­ly under four prop­er­ty clas­si­fi­ca­tions – Type I, II, III and IV. The char­ac­ter­is­tics are based on the den­si­ty of the mold­ed foam which defines the prod­uct type. Fox Blocks ICFs are man­u­fac­tured as a Type II EPS with a den­si­ty of approx­i­mate­ly 1.5 pounds per cubic foot.
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6 Alternative Building Materials for 2019
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Lock-and-Leave Home Design: How to Increase Your Free Time and Security
With so many home­own­ers look­ing for ways to cut back on their busy lives and enjoy more qual­i­ty time with friends and fam­i­lies, the lock-and-leave home seems to be the per­fect solu­tion.
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Insulating Your Dreams: Unraveling the Benefits of ICF Homes in Minnesota
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12 Easy Steps for High-Performance, Healthy Homes
Builders and home­own­ers that fol­low these 12 easy steps for home design and con­struc­tion will cre­ate a high-per­form­ing and healthy home that is com­fort­able and safe.
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Aluminum Stud Problems and a Better Alternative
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The Business Case for Building Multifamily with Insulated Concrete Forms (ICFs)
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The Advantages of ICF over CMU Construction
Con­crete mason­ry units (CMU) and insu­lat­ed con­crete form (ICF) walls have sev­er­al fea­tures in com­mon: ener­gy-effi­cien­cy, dura­bil­i­ty, and good indoor envi­ron­men­tal qual­i­ty (IEQ). How­ev­er, ICF is quick­er and eas­i­er to install com­pared to CMU, which saves time and mon­ey.
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How ICF Solves the Problems of Both Metal and Wood Stud Framing