Insulated Concrete Forms / Discussions

Do ICFs have a reliable history for home construction?

...Concrete Forms construction a new thing or do they have a long history and do they meet code? We'd never heard of ICFs before and wondered if it was just an up-sell and whether it is worth considering. Thanks! In my considered opinion, ICF construction is perfect for building a basement. ICF blocks are quickly stacked,...

Posted by Les Poldark Dec. 6, 2021 Foundations and Basements 1 response

What is the best insulation Under 2" Cement flat Roof in NYC?

...forms more like the manufacturers say it does. So for figuring what amount of insulation actually makes sense, you'd need to do energy modelling, but if you're just going to wing it, in our experience doubling building code R values generally matches up with our lifecycle analysis. 

Posted by Rafael Mor March 29, 2019 Roof assemblies - new construction 1 response

What is the best way to stop thermal bridging between my ICF block construction walls and my footing?

...insulated footing under ICF block construction walls allows thermal bridging into the concrete core of the wall allowing energy stored in the thermal mass to bleed into the soil below. This is one of the problems with building ICF on a traditional concrete strip foundation. Is there any way to stop this advantage for I...

Posted by Walter van den Broek Sept. 18, 2020 Foundation choices 1 response

With an ICF built frost wall can you install electric wire in floor heat cables and cork flooring?

...concrete and I will be on time of day rates so the concrete heats up at night. I have R35 in walls and R60 in ceiling I am looking at using the 4mm cork tiles glued down with the bostik and finitec products you used on the Edelweiss house. Do you see any issues with using it with the electrical heating cables as compar...

Posted by C Whitby Aug. 7, 2020 Flooring and stairs 3 responses

Compared to pre-fab wall assemblies - how does ICF Construction fare?

...insulated panels) usually made of rigid EPS (expanded polystyrene) panels. There are also companies that will take your building plans and create walls to match that can be delivered and assembled, that can be a great option as it is often cheaper as there is less material waste. And, you’re not leaving your wood frame...

Posted by Shaun B Nov. 12, 2019 Wall assemblies - new construction 2 responses