A mobile home is a good Plan B, or even Plan A for someone with Multiple Chemical Sensitivities.
I have divided the topic into Tiny Homes and Trailers (with a note on Campers) for two reasons. While many tiny homes are built on trailers they are not really built to be frequently moved around. They also have the option of being built on a foundation and can be lived in year-round.
Travel trailers are made to be moved around frequently, and cannot be built on a foundation. They are usually not winterized.
|The Wildflower via tinygreencabins.com|
Tiny Green Cabins (US) can use steel frames which will hold up better than wood frames. Jim has built many homes for people with MCS and he has a huge amount of knowledge about chemical-free building materials. They provide a warranty and deliver to anywhere in North America.
Swanson Associates are well-trusted experts in natural building and custom build non-toxic mobile homes that are MgO based.
|Leaf House via tinyhousing.ca|
A new company building healthy tiny homes is Carpenter Owl.
Prices for conventional tiny homes are around 20-30 K but a chemical-free house will double the price, and I don't know of one for less than 60K. Budget at least 65K. Look into the experience of the builder as well as what kind of warranty they offer.
Most tiny house companies, including Tiny Green Cabins, Leaf House and Tumbleweed, also sell the plans to the houses, so you could go really DIY on this one! That would also give you plenty of time to source and test all the materials. If you use (and can tolerate) salvage materials you could really bring the cost down.
There are workshops and books that will help you learn how to build one yourself. These two books would be essential: The Tumbleweed DIY Book & Tiny House Floor Plans. Check the web for workshops in your area.
Where to Park Your Tiny Home
Many tiny homes are off the grid and use propane to power most systems, which is not an option for the MCS patient. Propane may be suitable for hot water heating and for refrigeration, but the power for your heat, AC, and stove/oven will need to be electric. (There may be a possibility to use propane heating and cooling systems that are used in travel trailers). Solar panels on the roof would probably only cover lights/computer/cell phone. The new Tesla battery will open up some more options for solar in tiny homes.
It is not possible to have a tiny house certified as a mobile home where I live, which excludes the possibility of parking at a mobile home park. It may be possible to park at an RV park if your electrical load is 60 amps or less and you have the proper plug for an RV park. You will also need RV sewage hookups. In many rural places you can have a tiny home on your own land, either legally or "just squatting", set up with electricity and water.
A Tiny House (not on wheels)
The Nomad Micro is a 10x10 metal SIPs house. It can be made to be very non-toxic. You order the shell from them for 25K CAD (which is actually quite pricey). You need to add: shipping, platform or slab, installation, wiring, heat, plumbing and hot water heater, flooring, and cabinets. There is an option to complete the inside in a non-toxic way. Contact me if you are interested in this.
My most sensitive friend tested the SIPs and thought they were good.
I have seen the installation instructions but you would still want to ideally visit the factory and see this in person, as well as talk to someone that owns one. They haven't been around that long and there is no warranty. For a 10x10 house this is on the expensive side, but I still think it's really cool, great layout and non-toxic as can be.
They ship from Vancouver BC, and they come in a larger size as well. You can also connect more than one.
Joey, from HealClick, breaks it down to the essentials and delivers a safer trailer for just 7,000$! You can read his post where he explains how to get a trailer for a minimal price. But keep in mind this is a small cargo trailer with no bathroom, (and small kitchen) with the bare minimum! His version is not totally chemical-free, with foam insulation giving off some flame retardants (see my post on Insulation), as well as propane, and some plastics (in the accessories). Glue was also used in installing the ceiling AC.
Other things to consider are the rustproofing chemicals used on the metal as well the finish on the aluminum.
For the flooring you want to go with extruded aluminum. And for the walls, aluminum panels would be ideal. For the insulation I recommend flame retardant-free polyiso by Johns Manville.
I was not able to go this route as I could not find a cargo trailer company in Canada that did not use glue as a major construction element. Though someone recently was able to get the company Mirage to build without glue or caulk, she was not able to tolerate the smell of the metal finish on the outside.
Aluminum Travel Trailers
For something a little more homey than a cargo trailer, all aluminum trailers are available with kitchen and bath. There are a few companies making them, but LivinLite is one that is very good and can customise your order to avoid most toxic elements.
I had a Camplite by LivinLite travel trailer made to my specifications and you can find all the details about that here. They no longer customise it with metal walls which is a shame.
Custom Metal Trailer
You could have a small metal trailer custom made in the style of the camplite or like a tiny home. I have also seen cargo trailer custom made with metal SIPS though that is rate to find. Another type of non-toxic trailer is porcelain enamel which from the ones I have seen have metal backing. This is an extremely tolerable material but it is not cheap. It's very rare to see a porcelain trailer for sale.
Fiberglass Travel Trailers
Casitas use a carpet that is glued on to the walls and floor. At the time of writing, they would not customise one without that element. Look for fibreglass campers with moulded fiberglass furniture like Oliver trailers. Oliver uses vinyl flooring but they can make you one without the vinyl or cushions which makes it the best fiberglass option I have found. They also have a good r-value and can be winterised.
Custom Wooden Teardrop Trailers
this post. The trailer came to 10K in materials, the labour would be about an extra 10K. It has basic wiring, no plumbing and a basic outdoor kitchen.
Not quite a Trailer....Van and Truck Campers Should Also be Considered
BioCampers are a non-toxic camper van available in Europe. The interiors are made of all metal, or metal and wood. They are all custom made to the specifications of the sensitive person. (Unfortunately as of 2016 they are out of business).
It is possible to buy a van of this type, strip it out and custom build the interior in the same fashion. Here is my post on the topic.
Livinlite makes truck campers that can be customised as well. The same guidelines will need to be followed as with their travel trailers as outlined here.
For more information you can check out my posts on Insulation, Flooring, Furniture/Mattresses, Kitchens, Bathrooms, Wood and Paint Finishes, as many of the same materials will be used in a mobile home, and the information will be useful for someone wanting to go this route.