We have read that mastic asphalt can also be used only as a top layer over a heated screed. Has anyone had experience with this?
The background is that in our house with a wooden floor slab, we would like to have a uniform floor covering throughout the entire single-story house and we are convinced by the advantages of mastic asphalt. Unfortunately, we also want underfloor heating, and since copper pipes have to be used, this drives the overall costs up. Additionally, there are heating engineers who no longer install copper pipes at all. Time is not an issue for us, meaning a drying time of one month for the standard screed would not be a problem.
Thank you in advance for your opinions.
I cannot post links here, but if you google HAUS B ELLERBEK you will find what we have in mind.
The background is that in our house with a wooden floor slab, we would like to have a uniform floor covering throughout the entire single-story house and we are convinced by the advantages of mastic asphalt. Unfortunately, we also want underfloor heating, and since copper pipes have to be used, this drives the overall costs up. Additionally, there are heating engineers who no longer install copper pipes at all. Time is not an issue for us, meaning a drying time of one month for the standard screed would not be a problem.
Thank you in advance for your opinions.
I cannot post links here, but if you google HAUS B ELLERBEK you will find what we have in mind.
B
Benutzer20021 Mar 2022 08:05Rumbi441 schrieb:
Unfortunately, we also want underfloor heating, and since copper pipes have to be usedWhat is the reason for the "have to"? Why not use cast asphalt as the heated screed? I have a lot of questions about your post.
Hello "Rumbi441".
As "Benutzer200" already mentioned, the topic raises more questions about the context, thus about the WHY, than can be answered with short replies.
In timber frame construction, a wet screed has no place indoors.
A poured asphalt screed remains the option, installed as a heated screed with heat-resistant heating elements. According to current technical standards, this is usually a copper pipe. The claim that these are no longer used is, in my opinion, a rumor!
There are also panel-type floor elements with pre-formed (grooved) channels for plastic heating elements. These are special systems that, after laying the heating elements, are only about 6mm (1/4 inch) thickly skimmed with a polymer-modified leveling compound; a floor covering is then installed on top. This would be a solution without poured asphalt but still suitable for timber frame construction.
Your initial question cannot be answered that simply. All on-site conditions would need to be known for that.
Best regards, KlaRa
As "Benutzer200" already mentioned, the topic raises more questions about the context, thus about the WHY, than can be answered with short replies.
In timber frame construction, a wet screed has no place indoors.
A poured asphalt screed remains the option, installed as a heated screed with heat-resistant heating elements. According to current technical standards, this is usually a copper pipe. The claim that these are no longer used is, in my opinion, a rumor!
There are also panel-type floor elements with pre-formed (grooved) channels for plastic heating elements. These are special systems that, after laying the heating elements, are only about 6mm (1/4 inch) thickly skimmed with a polymer-modified leveling compound; a floor covering is then installed on top. This would be a solution without poured asphalt but still suitable for timber frame construction.
Your initial question cannot be answered that simply. All on-site conditions would need to be known for that.
Best regards, KlaRa
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